Rz250r f1

[Intruder VS]

Hi guys, I've started a restoration of an RZ250 F1 and need to find good sources for parts, I'm looking at needing to source a new crank and piston kits for starters, is there anyone here in NZ to contact.
Cheers

[F5 Dave]

For a std engine weemoto or yambits in UK will likely do Mikita parts that are quite adequate. Crank rebuilding is a fraught affair as the pins are part of one side of each web. If that is knackered you need another web or two. Hard to source.

I'd recommend Pete Sales at Total motorcycle in P.nth if you need someone to put a crank together.

Heaps of banshee aftermarket cranks on eBay that could probably be pressed into service as the 250 and 350 are the same.

[geoffm]

Norbo at LC Crazy (http://homepage.ntlworld.com/ultimatelccrazy/html/for%20sale%20link%20page.html) has some good bits for the YPVS. The site is a mess, but he has been good for the LC bits I have bought in the past
Parts are common in the UK for these. Some Banshee parts fit.
Geoff

[Intruder VS]

Hi guys, cheers for the replys, been pretty busy but have managed to find time to do a bit of work on the old girl.
If anyone is interested I may keep this going as a bit of a project update thread.
I've been looking for a RZ F1 for a few months and out of the blue was offered this one and just had to have it, she was saved from a wreakers by the previous owner and sat for a couple of years in his care before coming to me late Januray.
So now the project begins, she's now completely stripped, frame being blasted this weekend and painted original red next week, rear brakes and triple trees rebuilt and painted, inner rear guard, airbox, 2 stroke tank and electronic boxes cleaned and polished ready to go back on.
Engine was on first oversize but left piston had caught top ring on port so looks like going to second OS, crank seen better days so ordering new complete crank next week, nothing unexpected really and piece of mind knowing top and bottom end is all new.
That's it for now will update when I have more time. Oh and looking for 35mm forks, mine aren't to bad but some better ones would be nice.
Cheers

[F5 Dave]

Nice 1KT parked next to it.

Keep up the pics of the RZ

[Intruder VS]

A quick update, blasted the frame and swing arm on Saturday, I borrowed one of those pressure pot type blasters, set myself up on a big tarpaulin behind the garage put on all the safety gear and away I went, first hour was fun but by the end about 4 hours later I was over it big time so that was the first and last time I do that, next time the experts can do it.
Etch primed the frame and swing arm and left to dry overnight.
Sunday I repaird a couple of fairing mount tabs and welded up a small crack I found on the frame, etched the repairs and set it aside to await paint.
Tidied up a couple minor things on the swing are and shot it with silver paint.
Also managed to clean up the cylinder head and paint.

Cheers for the comment on the TZR, it was in similar condition to the RZ when I got it, took me about 5 months to bring it back to life, I'm pretty happy with it but need to tidy up a few minor things on it still, figured if I get a little over working on the RZ I will go for a blat and that should get the motorvation back. Nothing like giving a 2 stoke a good caneing to put a smile on your dial.

[F5 Dave]

A great start. Shit it must have been hot work.

[Intruder VS]

Yeah was bloody hot, had all the gear on and did it out the back of the garage in the sun not nice at all but now she's all red and shiny and looks oh so nice so was worth all the effort in the end.
Painted her Tuesday after work, it's was a bit of a mission getting to all the parts of the frame, I used a small touch up gun first to get all the hard parts then switched to a bigger gun to do final heavy coats. Looks like I got it all haven't found any bits I missed so happy with that.
Left paint to harden up a bit then Thursday night was spent fitting the triple trees and started on fitting swing arm etc Friday night.
Some good and not so good news, the good is the new crank has been ordered with a big thanks to a contact down Wellington way and the not so good is the recon guys have deemed the left barrel stuffed but looks like I may have found another pair still on standard bore, should know more on that next week.
Also made a couple of fairing stays as mine were missing just need tidying up and painting, again with a big thanks to another contact I've made up auckland way who sent pics and diamentions of originals.
I will spend a little more quality time with her over the weekend and post how I get on. (the bike not the wife :killingme )
Cheers Jason

[F5 Dave]

On my `88 the arms that complete the linkage into the swingarm were pretty sloppy having rusted and worn. You could grab the wheel and lift it up a cm or two. I got them turned and some brass bushes for the swingarm to match. That worked well and lasted forever.

[Intruder VS]

Good call I was in two minds if I should replace the bushes, mine are still ok but maybe not as tight as they should be, I have some Teflon rod at work so will chuck it in the lathe and turn up some new ones. Cheers for that.

[F5 Dave]

Shortly after you have it rolling you'll want to loom it. While you are there two thoughts;

-the early model had finned regulators. They were reliable. The later F2 had a flat pack arrangement that wasn't. Not sure about the F1. I'd swap it out.


-second, the 4pin plug from the stator is underated for the job. With a bit of corrosion they burn out overworking the rest of the system. Replace with a bigger pin connector. Flatpin job from Supercheap will do the job and look period with other connectors. Only drama is the plug needs to be fitted after the stator loom is passed through the engine hole. And disassembled if you need to take it out, but that's easy.

Check other connectors for tarnish. I'm experimenting soaking contacts in cheap clear vinegar.

[Intruder VS]

The F1 has the earlier type finned reg, can get a little confusing the F1 as its a cross between the earlier and later model bikes. From what I understand it was only made for a year as a bit of a stop gap model until the new styling was ready to be launched. The F1 is my favorite of the RZ range.

Cheers for the heads up on the stator plug I will look into doing the mod when I get to that stage.

Didn't do to much to her today but I did spend a few hours playing around on the computer drawing up the decals ready for the vinyl cutter. Did the shadowed RZ250R for the fairing, didn't come up to bad just a little adjusting to do then order the correct color vinyl for all the decals on the bike.

[Intruder VS]

Didn't seem to find much time to work on her this week but managed to get a couple of things done.

Started fitting a few electrical bits I had cleaned up and decided to use stainless cap screws to keep things tidy.

Started on the wheels also, used paint stripper to get rid of the old factory paint then sanded the bare ally with 360 grit and polished with autosol, I'm happy with the look as wanted a brushed look not mirror finish. Masked all the polished parts which took ages and hit them with gloss black epoxy enamal.

Also started on making replica cans as mine were stuffed and as I want to keep her as original as possable decided to make my own out of stainless. Came up pretty good just need to find 2 good original baffles now.

Oh and new crack arrived, looks very pretty. Turns out the barrels I brought are not the best and not useable so if anyone has one I'm after a left barrel that can be bored to 2nd OS.

That's it for now and will update when a bit more is done.

[Intruder VS]

Update time, been spending a little time on her here and there as I can.
Ended up rebuilding the original forks, the chrome pitting was between the top clamps so after a bit of measuring discovered 38mm OD stainless hyginic tube was a nice snug fit over the fork tubes so cut 2 peices to fit between the top clamps and slid the forks in, looks nice and tidy and will suffice till I find some better ones.
Have trial fitted the wheels without tyres for now, thinking of fitting Bridgestone BT45's.
Also cleaned up and clear coated the peg mounts.
Still looking for barrels that can be put back into service then the engine rebuild can be started.
That's it for now. Cheers

[Arronduke]

Nice work, done in great speed.
I had one of these it was a great bike.
Nice project and it will take great pride in your shed when its done... shame mine ended as road art lodged in to the side of an escort van.

[Intruder VS]

Cheers for the comment. yeah great bikes had a lot of fun on my first one many many moons ago until we hit a curb and ended up embedded in a fence. I look at it this way, managed to take one out of this world and now bringing another back from near death, Redemtion I guess.
Update time, stripped and tidied up the guages then spent ages straightening up the top fairing mount which was pretty out of shape so much so the instrument cluster and headlight wouldn't line up with their mounts all sorted now tho but still need painting.
Replaced the tube on the left clip on as had been bent and straightened by someone, can't beleve someone would ride it like that as was almost ready to snap where it was bent.
tidied up hand controls etc and fitted to bars.
Cleaned up main wiring loom and tested each wire with a multimeter, once happy had no broken wires i re wrapped and fitted it to the bike and plugged everything in. Chucked a battery in turned the key, powervalve servo whizzed away and lights etc came on. Was cool to see some life, need new flasher but that's about it.
Also rebuilt front brakes and bolted them on.
Going to hopefully sort tires this week and maybe start on the engine over the Easter break.
Until next time, cheers

[F5 Dave]

Looking good.
Ahh yes that fairing bracket looks like the F2 one. I had the bottom fairings off one day and had a moment of sustained traction loss (front wheel only lost contact with the ground through most of 2nd gear. Several times on a windy uphill backroad.)
Anyhoo it landed and the top fairing took a turn to the left. Eek!.

Cracked almost through. Broke it off unplugged and rode home sheepishly with it on my lap.
Remember it like it was yesterday not the early 90s. So not that long ago. . .

Got braced after that. Two strips on either side of the two tubes near the frame. Give it a good eyeball. . And always refit the lowers.

[Intruder VS]

Ouch not good when you have to ride home with parts from the bike on your lap.

Well sorted tires, went for Battlax BT45's in standard factory size and they look great on the rims with all the little hairy bits still on them.
Fitted the front and rear brakes, took a bit of bleeding but finally came up good and no leaks that I can find so cool another job off the list.
Started the engine rebuild, was a bit nervous stripping the case down but all seems fine inside so a good clean paint and some new bearings and seals in the transmission then fitted the new crank and seals. Crank spun nice and free and gears seem to select fine so on went the Yamabond bolted the cases back together and success every thing still spins fine with now binding so that was a relief.
Went to order piston kits today but they only had 4th OS in stock and as I want 2nd will have to wait a couple of weeks for them to arrive bugger it.
May have found a good set of chambers to, mine have pleanty of gravel rash and old shoddy repairs so are pretty ugly.
That's it for now.
Cheers

[Arronduke]

Bike looks great, it going to look the part.

Throw a picture up of the TZR.. always wanted one of them.

[Intruder VS]

Bike looks great, it going to look the part.

Throw a picture up of the TZR.. always wanted one of them.

Here you go before and after pics and haven't forgotten about the RZ just been waiting on parts which I have now so update coming soon.

[Intruder VS]

Ok here we go, been a bit busy with a small job, I now have a 20ft container sitting on front lawn that I'm converting into a batch for the mother in law :devil2:, she is going to put it on a bit of property she has up in the sticks. God forbid she moves in it here :nono:

Back the the bike, had a email from the piston supplier and not good news they have to wait for TKRJ to do another run of Pistons to get 2nd OS and could be 6 or more months away. I searched high and low even other countries but no luck so ended up going 1mm over (4th OS) was and am still a litte worried about it but have been told 2mm is doable as long as power valve bushes are good.
Dropped Pistons and barrels to be bored then started chasing up other bits I have been on the hunt for. It was like xmas day last Thursday brand new tail light arrived along with center stand, good fork tube, chambers and a call to say barrels are ready :woohoo:
Fitted tail light, stand the set about getting ready to fit top end, went to chamfer the ports and found the borer had already been there done that so cool, gapped the rings then fitted the Pistons to the rods with new small end bearings.
Gave the barrels a good wash and painted, left them for 24 hours to let paint harden then slid barrels on and bolted head down assembled all the other bits and finally the engine went back in where it belongs, attached most of the bits and peices just need the fit a couple of hoses fill with oil, bleed the 2 stroke pump etc and repair a couple small marks in the chambers and she's ready to fire.
I will hopefully get to the chambers this week but between work and the container could be pushing it, really want to hear her run so that's some big motorvation to find time I guess.
That's it for now
Cheers

[F5 Dave]

Cool its getting close. I make a shield that sits in between the two exhaust studs to shield that area from road crud. Probably not so important unless a daily all weathers runner.

[Intruder VS]

Good call there was a fair bit of crud stuck up in there, I like the idea so may do that and to the TZR as well as has a similar setup, all tho she like the TZR will be staying in the garage if it looks like rain it's the poor old Intruder that gets to go out in all weather.
Yep getting close can't wait to fire her up but not rushing it, once the chambers are done and new chain arrives it will be drop in the fluids and then ring ding ding time:wings:

[Intruder VS]

She lives, about 3pm today she fired into life second kick :woohoo::Punk::drinknsin

[Intruder VS]

I'm back, no she's not turning into another unfinished project just been busy converting a container into a batch for the mother in law and doing other odd jobs around the house, have to earn those brownie points.
As said in last post she lives, I've been tidying up a few little things on the frame etc so now ready to start on the cosmetics which I will make a start on this weekend.
I've done the first ride all be it up and down the street and seems good, no misses, stuttering or strange noises, very smooth compared to the TZR and seems very willing to rev but haven't taken over 8k revs yet as needs running in.
Had a text from someone I know saying he had just pick up a 84 RZ250RR, been of the road since 93ish engine is out of frame but all pretty much there. It's an import as has slight differences to my NZ new RZ. Was told they were imported when only about a year old and my have been raced over there from new but not sure. Anyway long story short I now own her.
A mate is picking it up next weekend from Auck so can't wait to get started on that restoration.
Cool my Yammy 2 smoke collection is growing.
Attach a pic of were my RZ is at now and some of my new baby.

[F5 Dave]

Cool and cool.
Can tell you the 250R ignition isn't restricted. I used one on my 350 after dyno comparison with original.

[Intruder VS]

Yeah sort of figured that, as far as I can tell the 51L is the pick of the 250's, the barrels have an extra port that runs from the inlet to the outside transfer ports that none of the outer RZ's got and the CDI is marked 51L as well.
The RZ I have comeing has 51L barrels but not sure what CDI it runs, it also has different carbs that linked with a throttle shaft and push pull cable set up.

[F5 Dave]

So called Boyesen ports.

[Intruder VS]

Ahh ok yep I have read something like that but wasn't sure exactly what they meant. My 85 is going back the factory spec so my have a play with the new one, porting carbs chambers etc. Any good sources for chambers here in NZ?

[F5 Dave]

Not really. Cycle works will make you some but otherwise its overseas

[Intruder VS]

not to much of an update other than I have started on repairing and prepping fairings for paint, going to take a bit of time that one. The big news is the 84 has arrived to join the family.
She's pretty much all there other than airbox and left chamber, frame is in better condition than the 85 was before I started, I suspect the crank maybe tired but won't know how bad till I pull it out, bore on 1st OS Pistons look almost new, need to clean up bores and check for damage and wear. Worst case is rebore.
So the family is now 89 Intruder, 86 TZR 1KT, 85 RZ250RR F1, 84 RZ250RR F1 import, 87 CBX750 cafe project.
Hmmmmm bit of an 80's theme going on here.

[Intruder VS]

Been a while since I've updated so here we go just to show things are still progressing.
The garage is bloody cold at the moment and other things keep side tracking me but have managed to get a little done.
Repairs of the fairing for the 85 is pretty much done and have finally got it all fitting correctly, was a pain in the ass trying to get the holes lined up with the mounts and have the fairing sitting straight.
Now need start sanding, priming and blocking back but won't be painting till the weather warms up a little. Going to order the vinyl for the decals this week so Its there for when I need it and the vinyl cutter is in our heated hobby room so no excuses for not doing anything.

Have done a little with the 84 F1 also, frame stripped ready to go to sand blasting this week with any luck, as for the engine crank was completely stuffed but gear box all good so have fitted a good serviceable crank and new seals etc. Just waiting on rings to arrive top end can go on then will sit it aside till the rest of the bike is ready for it.

Also now have a third RZ, another NZ new F1 fitted with 84 tank and side plastics. Got it home cleaned the carbs gave her a kick and away she went not bad for sitting in a shed for 10 years. motor sounds ok good compression and rides fine so she's going to sit in the corner for now.
May convert her into a red/black 84 with bikini fairing so will keep an eye out for the bits I need to do that.
Also came with a lots of spare parts which will come I very handy.
Cheers.

[F5 Dave]

Good to read the update.

[Intruder VS]

Quick update time, the 84 RZ is rolling and for the first time in 20 odd years she runs, still needs lots of work but she's getting there slowly but she's been pushed aside again while I'm working on the 85.

Been busy last couple weeks doing a little on the 85, most of the painting done and decals cut and applied so she's starting to look the part and may even be able to get her booked in for compliance in a few weeks.

[F5 Dave]

Way cool pics. Looking forward to the nice day outside completion ones.

[mossy1200]

This is why its hard to find a good 2smoke. Someone owns them all. Nice work.

[ellipsis]

...all cool...you just carry on with your other shit...a real good story so far...thanks to other contributors for their input too...:woohoo:

[Intruder VS]

Yes indeed thanks for the comments nice to know I'm not talking to myself on here I do enough of that in the shed.

Theres still lots of old 2 smokes out there just trying to get the owners to part with one is as hard as finding a Politician that tells the truth.

Ok couldn't help myself and had to dummy fit the fairings, still a few jobs to do tho.

Thanks again.

[F5 Dave]

Oh grumble grumble, those lower fairing bolts aren't standard and progrip didn't make grips for Yamaha until the late 80s:msn-wink:.

So super just kidding.


Yeah often people will look at threads but not have anything to offer so stay silent.

[malcy25]

Oh grumble grumble, those lower fairing bolts aren't standard and progrip didn't make grips for Yamaha until the late 80s:msn-wink:.

So super just kidding.


Yeah often people will look at threads but not have anything to offer so stay silent.

Lol....I bought some OEM grips for a TZ Yamaha a couple of years ago and the replacement part was 47X prefix......RZ500!

I prefer medium compound Renthal myself but the Renthal hard is more like Yamaha OEM in colour and very close on pattern.

Don't you hate rivet counters!!! (so speaks a man who's Yamaha only has the gearbox, clutch cover, cylinders and heads and a couple of other misc parts and the rest of the WHOLE bike including crank cases, frame, forks etc are
replica ...!)

Got a love a good RZ - the first 2 stroke road bike that scared me as a 17 year old, more so than my brother's GS1000S.

[Intruder VS]

Oh grumble grumble, those lower fairing bolts aren't standard and progrip didn't make grips for Yamaha until the late 80s:msn-wink:.

So super just kidding.


Yeah often people will look at threads but not have anything to offer so stay silent.

Yep not getting anything past you am I :D not worried tho as shes close enough to original for me and will soon be back on the road where she belongs which is the important thing, saved from certain death at a wreckers.

[Intruder VS]

Lol....I bought some OEM grips for a TZ Yamaha a couple of years ago and the replacement part was 47X prefix......RZ500!

I prefer medium compound Renthal myself but the Renthal hard is more like Yamaha OEM in colour and very close on pattern.

Don't you hate rivet counters!!! (so speaks a man who's Yamaha only has the gearbox, clutch cover, cylinders and heads and a couple of other misc parts and the rest of the WHOLE bike including crank cases, frame, forks etc are
replica ...!)

Got a love a good RZ - the first 2 stroke road bike that scared me as a 17 year old, more so than my brother's GS1000S.

I remember my first ride on an RZ, I was about 16 and had a CB250RS which I thought was just the bees knees and on a visit to the local dealer spotted a very sexy bike I hadn't seen before, was told take it for a ride to see what I thought. Cool so off I went around town then opened the throttle to see what it had now remember I was used to a 4 stroke so as a bit disappointed well that was until I discovered what a powerband was and holy shit it was all on thought my arms were getting ripped out of their sockets and may have stained me undies, got back to the dealers still shaking and said something along the lines of HOLY FUCK WHERE DO I SIGN!!!

[F5 Dave]

I have those same progrips on my Stinger, that's how I knew the pattern. I'd decided before I started that I was doing it to ride and my interpretation. Screw anyone else's opinion.

[mossy1200]

I think I spotted a rz250 for sale on trademe a week or two ago but it seems to have been sold now. I think it had a round headlight fitted and no fairings.

[Intruder VS]

I have those same progrips on my Stinger, that's how I knew the pattern. I'd decided before I started that I was doing it to ride and my interpretation. Screw anyone else's opinion.

Exactly how I feel as long as I'm happy with it screw what others think.


I think I spotted a rz250 for sale on trademe a week or two ago but it seems to have been sold now. I think it had a round headlight fitted and no fairings.

Yep you did looked like it was a fresh import that needs resto, I think he was asking about 2.5k not sure if it sold tho. I'm not that fond of those models I think yamaha tried to update the cosmetics due to poor sales but just looks wrong but that's just my opinion

I will be on the lookout for a RD250 LC at some stage, everyone else seems to be into the 350's but I'm staying with the 250 theme.

[malcy25]

I have those same progrips on my Stinger, that's how I knew the pattern. I'd decided before I started that I was doing it to ride and my interpretation. Screw anyone else's opinion.

yep!

I once had a prominent classic bike person commenting on my bike and something of little note I'd done (tank sticker!) - essentially I shouldn't have done that because of blah. I suggested that as it was my bike I could actually do what I cared. The look on the face was classic as I doubt anyone had every said anything like that too him usually going "yes sir, I'll fix it!"

Most of my old bikes are not rivet counter perfect by any stretch (they do fit the rules of the class I'm racing in) and usually have some cool period mods, or smaller less of an issue stuff that makes it nicer to ride.

[F5 Dave]

I was thinking of streetfightering my Stinker but they come like that std.:msn-wink:

[Intruder VS]

I was thinking of streetfightering my Stinker but they come like that std.:msn-wink:

Or I could cafe racer an RZ complete with exhaust wrap, Ah hang on let me think about that for a minute-------AH GOD NO what was I thinking.:facepalm:

Anyway well she's pretty much done and booked in for compliance next Tuesday so fingers crossed on the road soon.

[Intruder VS]

She's all legal :banana::clap::2thumbsup.

Dropped her off first thing this morning paid the $250 and went to work, was a nervous few hours but got a call from VTNZ at 1:30 to say all done ready to go.

Must say the guys at VTNZ here in Gisborne are awesome, made it very easy. No mountains of paperwork just had to sign a couple of forms and done.

Now time to clock up some miles running her in.

[F5 Dave]

There's the outside shot, she looks fantastic. And a long weekend coming!

[ellipsis]

...:woohoo:...happy ending to a cool story...just like it should be...

[Hemi Makutu]

I've got an `85 RZ 350 just like that, a bit raced/rallied/rolled.. & commuted though.. but she's done some big K's..

Here's a tip, buy a can of WD 40 PFTE ( Teflon) spray, & give each tankful of gas & oil a squirt..
..& you won't regret it..

Also, if you like the zoomy feel, & you have a spare set of engine/box guts, def' try a bigger cube version..
..& you won't regret it..

[Drew]

I've got an `85 RZ 350 just like that, a bit raced/rallied/rolled.. & commuted though.. but she's done some big K's..

Here's a tip, buy a can of WD 40 PFTE ( Teflon) spray, & give each tankful of gas & oil a squirt..
..& you won't regret it..

Also, if you like the zoomy feel, & you have a spare set of engine/box guts, def' try a bigger cube version..
..& you won't regret it..
Had I read this 3 days ago, I'd have offered to post you a brand new condition side panel for that bike.

[Intruder VS]

I've got an `85 RZ 350 just like that, a bit raced/rallied/rolled.. & commuted though.. but she's done some big K's..

Here's a tip, buy a can of WD 40 PFTE ( Teflon) spray, & give each tankful of gas & oil a squirt..
..& you won't regret it..

Also, if you like the zoomy feel, & you have a spare set of engine/box guts, def' try a bigger cube version..
..& you won't regret it..

Cheers for the comments and yeah I'm pretty happy with how it turned out.

Have you considered parting with yours?

I owned a 350 version of the same model about 20 years ago and the extra toque is nice in fact after a bit of detective work have tracked it down still local and partially stripped for a resto that hasn't happened in years. the owner has my contact details and I now live in hopes that I will get a call one day to say it's for sale.

[Hemi Makutu]

Cheers for the comments and yeah I'm pretty happy with how it turned out.

Have you considered parting with yours?

I owned a 350 version of the same model about 20 years ago and the extra toque is nice in fact after a bit of detective work have tracked it down still local and partially stripped for a resto that hasn't happened in years. the owner has my contact details and I now live in hopes that I will get a call one day to say it's for sale.

Good on ya, I, they are all good, but more grunt is better right?
As for 'parting' with mine nah, I did sell an `83 to a mate - after he hassled me heaps for it, & now I regret it..
( I was going to stick a Kawasaki 750/3 mill into it it, & had an FZ alloy swing-arm/shock/3.5in rear wheel to slot in too).

Actually, its not a hard do, & I have a spare set of 750/3 cases - if you are interested...

[Intruder VS]

Yeah extra power is nice but I have a soft spot for the 250's maybe because everyone else goes for 350's so I'm being different and the smaller bikes must be getting rare cause most of them were well thrashed, abused and written off as they were learner approved back in the day.

Triple would be interesting as I have a spare rolling frame but no not for me I perfer to keeping them close to original.

[Hemi Makutu]

Yeah extra power is nice but I have a soft spot for the 250's maybe because everyone else goes for 350's so I'm being different and the smaller bikes must be getting rare cause most of them were well thrashed, abused and written off as they were learner approved back in the day.

Triple would be interesting as I have a spare rolling frame but no not for me I perfer to keeping them close to original.


"Interesting" is a damning by faint praise, the extra 15 or so kg over the front improves the steering,
& 3 X the torque means the performance riding experience is much more, ah, - available..
( Yes I've got one, done earlier)..

It simply betters the Yam & the H2 in the one bike, - if riding, rather than strict originality is what you want..

[Intruder VS]

What I meant by interesting was its not a power plant I would have ever considered but the first thing that did spring to mind was lots of power in a frame that handles and stops unlike like the original Kawaski frame, would be one exciting ride for sure.

Not saying bad idea just I'm happy doing my bikes the way I want and if I did want a RZ with serious power would look at the big bore kits that are available before a repower.

[eelracing]

She's all legal :banana::clap::2thumbsup.
Now time to clock up some miles running her in.

That is one well crisp resto...well done.




Here's a tip, buy a can of WD 40 PFTE ( Teflon) spray, & give each tankful of gas & oil a squirt..
..& you won't regret it..

Is that you J.A.W?...and whats the thinking behind this idea?

[Hemi Makutu]

Its slippery stuff that nano-teflon, it'll stop the check-valves in the oil-pump from sticking (open, so flooding when parked),
& the power-valves too.

[george formby]

Its slippery stuff that nano-teflon, it'll stop the check-valves in the oil-pump from sticking (open, so flooding when parked),
& the power-valves too.

As soon as I read power-valves I had to google. I'm not much of a throttle jockey so have sticky PV's.

I found this interesting series of posts.

http://forum.dirtrider.com/discussion/9180054/slick-50-2-stroke-treatment/p1

[Hemi Makutu]

Nano-sized particles stay in suspension ( & yep - they work in forks too, reducing 'stiction', & seal wear)..

[Intruder VS]

Bit of a catch up for anyone interested, the 85 RZ has now clocked up a few k's, awesome being back on one after to many years. She seems fine had a couple minor bugs to sort just need to nail down the litte stutter at 5k rpm at part throttle.
The 84 import is pretty much ready for paint, been out on it a few times and again just some minor things to sort.

Ok and the big news, after months and months of searching I now have a 81 RD250LC. :woohoo:
Not pretty in fact it came home in boxes pretty much totally stripped but mostly all there.
Have started a quick loose assembly to get an idea on what I'm dealing with.
Motor looks not to bad so new pistons, crank, bearings, seals etc should see that right.

Cheers for now.

[F5 Dave]

Tats quite a tasty collection now. Looking forward to updates.

[malcy25]

Need a RD250F or like now!

Aweseome. Had a 87 1KT TZR250 brand new. At the time, what a missile or a 250 proddie race bike.

[Intruder VS]

Tats quite a tasty collection now. Looking forward to updates.

Yep every so often I just stop and stare at them in one of those "Fuck Yeah" moments.


Need a RD250F or like now!

Aweseome. Had a 87 1KT TZR250 brand new. At the time, what a missile or a 250 proddie race bike.

The 1KT is a weapon all right, riding the RZ then jumping on the TZR is like chalk and cheese so much more nimble and a lot quicker almost makes the RZ feel like a touring bike.

Thanks for the comments guys and will keep you up to date as things move along.

[jasonu]

Need a RD250F or like now!



and a reverse cylinder TZR!!!

[Intruder VS]

and a reverse cylinder TZR!!!

Yep a 3MA fits the 80's theme I've got going on very nicely.

Also while I'm here who's the crank rebuilding guru here in NZ I can talk to? The RZ etc was easy Just a case of buying complete crank but Motozone etc only have parts.

Cheers

[Intruder VS]

Also while I'm here who's the crank rebuilding guru here in NZ I can talk to? The RZ etc was easy Just a case of buying complete crank but Motozone etc only have parts.

Cheers[/QUOTE]

For the LC that is:D

[F5 Dave]

Call Pete Sales Total mc in palmy and courier it. Don't be expecting a cool website. But no question he can do Yamaha twins.

[Intruder VS]

Ok talked to Pete and he has stripped the crank, not so good news is the only bits still serviceable are the outer webs every thing else is toast.
After talking to Pete again we've decided the best option is to order complete assembled center section, Rod kits and outer bearings so he can reassemble.
I have ordered the parts from PJME UK, good quality to all Japanese bearings etc and Long Co rods.

so in the mean time while waiting for engine parts have sand blasted and painted the frame etc and started slowly restoring and assembling. In stead of buying pattern parts I've decided to refurbish original parts as much as possible, I did the same with the RZ's and TZR and get a lot of satisfaction knowing original 30+ year old parts were used to bring the bike back to life.

[F5 Dave]

Love your work.

[Intruder VS]

Parts from UK Arrived in 6 days from order so that was cool and then sent them off to Pete, while waiting for crank parts etc I sorted the top end, gearbox and seal, and preped the cases for assembly.
Crank arrived Wednesday and looked oh so good so assembled bottom end that night and top end Thursday night then set about sorting carbs etc. Discovered sprocket spacer was a RZ one so dropped to a machine shop to shorten to 14mm the LC uses inner and outer OD was spot on.

Fitted the engine into frame Friday night and found a little time amongst family duties Saturday to fit chambers, stator etc. Kicked over and have nice big spark so have compresson and spark just need fuel

Today fitted and balanced the carbs adjusted and bleed oil pump, added gearbox oil and fuel tank.
Ok time to see if she lives and on the 4th kick fired into life:clap::banana: and sat there idling away while I stood there with a stupid satisfied grin.
Need to sort a chain before I can road test the will be time to do the cosmetics.
Pretty happy as it was sitting in boxes only about 6 weeks ago so may be on the road this summer yet, the aim was next summer.

[jasonu]

Parts from UK Arrived in 6 days from order.

If you had ordered them from Auckland you'd still be waiting...

[Intruder VS]

If you had ordered them from Auckland you'd still be waiting...

Yeah your right there it has happened a few times in the past, think some couriers use blind one winged carrier pigeons that only fly backwards.

[F5 Dave]

Groan. Hot topic here. I'm waiting for a solar panel from Auckland. Day 8. Apparently stuck in the local depot. Sender only put my name and the address. Apparently that stumped them. So I emailed them. Then called. Ahh a company name. (Which I had provided).
Geeze guys. Pick up a phone if it's that complex.
Still waiting. .
Tracker still says address unclear.

I might have to break in at night to retrieve it. The conviction would likely be less inconvenience than a conversation at the desk.

[Intruder VS]

Little update, chain arrived so whipped it on and kicked it into life, pulled in clutch clicked into gear found neutral nice and easy back into first let clutch out and we moved, adjusted clutch now time for first little ride. Took it up and down the street checkng gear changes and looking for leaks etc.
So far all good and the front wheel gets very light very fast when the power band kicks, not a nice smooth transition like the PV bikes pretty much all or nothing can see why a few learners lost skin when the Elsie's arrived on the scene
Time to start on panel and paint while thinking about what's next, might have a change from the 250's so thinking maybe a Katana always liked the look of the early and pop up light model so next mission to find a neglected one that needs saving.

[F5 Dave]

And there we have it. Nice pics.

[Intruder VS]

And here she is all sorted apart from waiting for the rear grab rail to come back from chrome platers.
Very happy with how it's turned out 10 and half weeks from boxes to complete rebuilt bike.

Lots of fun to ride so I can see she's going to clock up a few km over the next little bit.

Dave how's the stinger coming along I'm looking foward to up dates of the nice work you do.

[F5 Dave]

That looks fantastic, it really does.

Stinger has been inactive, the 500 is back on the bench. Then a mate has bought a race bike and I'm going to get sucked into that I can tell. My 7 yr old boy was riding it today so at least its getting some use even if its mouth sounds operated. He's worked out the kickstarter

[ojyamaha]

Only just hooked up on this forum... but your resto"s are cool and great that they are 2 strokes too.

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[ojyamaha]

Here's my 350 . That extra 100 cc is great fun but blue smoke is blue smoke.https://uploads.tapatalk-cdn.com/20170408/bddaf40c1950792769eeebc7a1480c74.jpg

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[F5 Dave]

Nice K. Shiny. Pipes look good on it. Never totally keen on the cigars.

[Intruder VS]

Here's my 350 . That extra 100 cc is great fun but blue smoke is blue smoke.https://uploads.tapatalk-cdn.com/20170408/bddaf40c1950792769eeebc7a1480c74.jpg

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Very nice 350 you have there:drool:, looks to have 51L pipes on it. yes the extra 100cc is nice but the 250's still manage to put a smile on my face. Actually I have not long picked up a complete 350LC motor so may rebuild it and slot into my 250:yes:

[ojyamaha]

Very nice 350 you have there:drool:, looks to have 51L pipes on it. yes the extra 100cc is nice but the 250's still manage to put a smile on my face. Actually I have not long picked up a complete 350LC motor so may rebuild it and slot into my 250:yes:
Yep 84 with 86 pipes ... good spotting.

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[F5 Dave]

Here's my 350 . That extra 100 cc is great fun but blue smoke is blue smoke.https://uploads.tapatalk-cdn.com/20170408/bddaf40c1950792769eeebc7a1480c74.jpg

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OK using that logic my 350 has another 150 on top of that. Let's see if I can find a pic here. . .

Hmm, no, that's just the header pipe, you'll have to imagine the rest.

[Intruder VS]

OK using that logic my 350 has another 150 on top of that. Let's see if I can find a pic here. . .

Hmm, no, that's just the header pipe, you'll have to imagine the rest.

That's just teasing NEED MORE PICS:soon:

[husaberg]

OK using that logic my 350 has another 150 on top of that. Let's see if I can find a pic here. . .

Hmm, no, that's just the header pipe, you'll have to imagine the rest.

https://www.kiwibiker.co.nz/forums/showthread.php/51274-F5’s-first-ever-brand-new-bike!?p=1836916#post1836916

[F5 Dave]

I didn't want to derail this thread too much.

[Intruder VS]

I didn't want to derail this thread too much.

No worries there the more strokers the better. Man that must be one insane ride!!!!!

Finally got my A into G and have pretty much finished the 84 Import RZ, it's the one without a belly pan as when I got it the fairings had never been drilled for the pan so has never had one fitted They were a option when new on this model.
She goes well so looking forward to clocking up some Km.
Also couple pics of the family

[F5 Dave]

Fantastic fleet.

[ellipsis]

...wot he said^...

[ojyamaha]

Interested in how you did the decals as I got a new screen but want to replicate the yamaha on it. Thanks oj. https://uploads.tapatalk-cdn.com/20170414/19ef980c290937a8ac5fb38998a31065.jpg

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[Intruder VS]

Hi, the TZR was the first bike I did and sign writer quoted $350 to replicate the decals so figured I would have a go myself and purchased a second hand commercial vinyl cutter, I traced what was left of the original decals then scanned and tidied up in cutting software and cut then from high quality vinyl I matched to correct colors. The "YAMAHA" is a font I matched.
You could go see a sign writer and they should be able to cut one for only a few dollars as it's pretty easy one. Just watch they do the correct one as the later YAMAHA has the middle part of the M a little shorter and than early one your bike will have.
Hope this helps

[ojyamaha]

Hi, the TZR was the first bike I did and sign writer quoted $350 to replicate the decals so figured I would have a go myself and purchased a second hand commercial vinyl cutter, I traced what was left of the original decals then scanned and tidied up in cutting software and cut then from high quality vinyl I matched to correct colors. The "YAMAHA" is a font I matched.
You could go see a sign writer and they should be able to cut one for only a few dollars as it's pretty easy one. Just watch they do the correct one as the later YAMAHA has the middle part of the M a little shorter and than early one your bike will have.
Hope this helps
Cheers for that. There's a sign shop we use for the car company logos so will go see them see how much for one off's.

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[Intruder VS]

Well possible new project came home today, 92 RGV250N. Story goes it dropped a power valve and destroyed a piston so was stripped and left for maybe 5 years or so, bike is complete reg on hold.
Engine looks like rain got into it as crank is rusty and won't budge other than that rest of bike is just cosmetically challanged so easy fix. Chambers and mufflers mint, plastics good just shit paint job.
The thought of a Yammagamma did cross my mind as have a 350LC engine spare what you reckon?
Can't bring myself to parting out as has live reg and would be cool do do something a little different

[Drew]

Something cool. RMZ450 motor.

Whitetrash had one with a KX500 up it. That was exciting when it ran.

[F5 Dave]

Drew you dork! Yer missing the point.

Someone I sort of know has ypvs in an earlier VJ21.

[Intruder VS]

Yeah liking the Yammagamma idea more and more, seems to be a thing of the past. Horse power about the same but can do a lot more to a RZ motor to up the power and in a light chassis would be fun plus be sort of cool to piss off the RGV purists.
So thinking RZ350, mod the RGV chambers to bolt to RZ and rejet to suit, custom paint scheme blending RGV/Yamaha speed blocks.

[malcy25]

Yeah liking the Yammagamma idea more and more, seems to be a thing of the past. Horse power about the same but can do a lot more to a RZ motor to up the power and in a light chassis would be fun plus be sort of cool to piss off the RGV purists.
So thinking RZ350, mod the RGV chambers to bolt to RZ and rejet to suit, custom paint scheme blending RGV/Yamaha speed blocks.

Cheetah top end - go big!

[F5 Dave]

Chambers will be the biggest part of the job. RGV will be unsuitable as shaped for a VTwin but also they rev higher and Stingers may be a bit small for a 175cc barrel let alone bigger. A stroked crank gives a decent engine. Going Cheetah adds another level of complexity and not insignificant cost. Trust me.

[Intruder VS]

Chambers will be the biggest part of the job. RGV will be unsuitable as shaped for a VTwin but also they rev higher and Stingers may be a bit small for a 175cc barrel let alone bigger. A stroked crank gives a decent engine. Going Cheetah adds another level of complexity and not insignificant cost. Trust me.

Good call on the chambers, I've learnt how to use CAD and vinyl cutting software so guess I will be learning how to use chamber design software now.

A deal has been done and will have a 1UA 350 coming my way soon, as to not overload myself and to keep motivation going will just rebore and port for now. Once bike is on road and I'm happy everything is good then STROKER!!

So making a plan which hopefully will go something like strip frame to bare roller, mock up and tack mounts with engine in place. See what else I may need such as off set sprocket etc then strip down weld mounts, cradle etc. Refurb frame, suspension,wheels etc. Rebuild engine final assembly of rolling bike fit RZ loom and electrics. Build chambers. Sort cosmetics and paint. Then wheelie time.

Yes I know theory and practicality are totally different things but at least it's a plan.

Dave what's your thoughts on rejecting and running the 34mm rgv carbs? Hope to use the rgv or RZ airbox

If anyone knows of this being done before any pointers will be appreciated.

[F5 Dave]

People have had some frame using RGV carbs but I don't really see why. They are downdraft so you'd need flatter manifolds and check for clearance as such. Different market and models, like Map VJ21 and all 22s have solenoids. These are for emissions so you just have to work out what gets blocked off. 21s were 32mm, 22s are 34mm. To be honest the easier conversion for a 350 is run KR1 carbs, or KX80 which are PWK28 and think they will work with std airbox.
Everyone who fits them raves about them. Easily good for 70hp. I ended up using them on the bucket (as im using 35mm PWK) but KX carbs can be bought online cheap if you look. I'd avoid the clones.
TZR reedblocks are the go with ovalised mounting holes.
For giggles the RZ junction box only has a 29mm throw.

[F5 Dave]

Oh yeah I can dig out Peters details he could probably send you pictures of engine mounts.

[Intruder VS]

Oh yeah I can dig out Peters details he could probably send you pictures of engine mounts.

That would be really helpful if he wouldn't mind.

Had a look at the carbs but can't see any extra things like emission stuff just pretty plane Jane carbs maybe because it was a NZ new bike not a import. I will look into it a bit more later have to stick to plan and tackle one issue at a time.

[Intruder VS]

Time for an update as to where things are at, haven't done much with the RGV yet just stripped down to bare roller and removed mounts ready to relocate. Have RZ350 case, barrels and wiring loom, CDI and power valve controller all 1UA just waiting on a mate to get all the engine internals located then I can start mounts etc so still a work in progress at this point.

Did pick up a Kawasaki 400LTD on the cheap, ran ok reg on hold ,cosmetically challenged even more than when new!!
So what to do hmmmmmm quick tidy up maybe, still won't be worth more than I paid so can't believe in thinking this but dare I say it Cafe Racer:facepalm::facepalm:
Well seems logical make a gay looking bike gayer and put silly price on it, at least the cash made will go into a worth while project.
Quick strip down, paint, polish etc oh and of course zorst wrapp and even now has a wof, only thing they questioned was the guards but ended up saying they were acceptable.
No I will not advertise as LAMS approved only that the bike in its original for was.
Ok so have a look at feel free to take the piss, is the first cafe I've built and most likely the last as no really my thing.

Oh and now look to have another future project, RD400C basket case with a 400E engine just need to figure out have to get it all from Lower Hutt to Gisborne.
Cheers

[F5 Dave]

I missed out on a RD400G, that I've been eyeing up for a decade and told him I wanted. Couldn't have put up the folding.

The Hutt eh? I could make it disappear for you. Just transfer the money, tell me where it is, and you'll never have to worry about all that messy fixing it up work.

[Intruder VS]

The Hutt eh? I could make it disappear for you. Just transfer the money, tell me where it is, and you'll never have to worry about all that messy fixing it up work.[/QUOTE]

Deal already done just needs pick up, I'm sure we could work out something like you take care of the messy and expensive stuff and in 3 months when finished I drop on a box of beers to you and ride it home:ride:

Ok reality now, looking forward to something a little more simple no liquid cooling or pesky power valves to worries about.
As it's a bitsa bike may play around with chambers, suspension etc instead of a factory restore

[malcy25]

Good call on the chambers, I've learnt how to use CAD and vinyl cutting software so guess I will be learning how to use chamber design software now.
.

save yourself the time and money, unless you are that way inclinded to need to do everything...

http://www.jl-exhausts.com/yamaha-rz350-ypvs-mild-steel-gp-style-exhausts-1421-p.asp

Pipes for an RZ350 that are 2up on the right side....

[malcy25]

Time for an update as to where things are at, haven't done much with the RGV yet just stripped down to bare roller and removed mounts ready to relocate. Have RZ350 case, barrels and wiring loom, CDI and power valve controller all 1UA just waiting on a mate to get all the engine internals located then I can start mounts etc so still a work in progress at this point.



Pity you are not using an RS250 Aprilia frame - I just saw a kit you could buy which had everything made and just needed the supplied mounts welded on for the full engine mount and cradle....

[Intruder VS]

Awesome find would save a fair amount of work will keep it in mind, I do like to do as much as I can myself get a lot of satisfaction at the end although sometimes wonder why the hell I bother while I'm doing it. Often much hair pulling and colorful language emanating from the shed.

Funny you mention a RS as was offered a frame a while ago but thought I would stay with the RGV as it's reg is on hold and the RS is just the frame nothing else as far as I know.

[malcy25]

Awesome find would save a fair amount of work will keep it in mind, I do like to do as much as I can myself get a lot of satisfaction at the end although sometimes wonder why the hell I bother while I'm doing it. Often much hair pulling and colorful language emanating from the shed.

Funny you mention a RS as was offered a frame a while ago but thought I would stay with the RGV as it's reg is on hold and the RS is just the frame nothing else as far as I know.

Know what you mean - sometimes I just farm it out and pay the money - rather than spend a whole weekend trying to do one job with a crappy result...I learned what I'm good and not so good at and where sometimes easier to just pay an expert! Everyone's threshold here will be different, I'm sure!