RGV250 rebuild?

[Drew]

And stop chewing your nails!

[ducatilover]

You can get circlips out with some precision flat blade screw driver work :innocent:

[Drew]

You can get circlips out with some precision flat blade screw driver work :innocent:I usually grind a pair of long nose plier tips down. But I'm a cheap prick.

[ducatilover]

I usually grind a pair of long nose plier tips down. But I'm a cheap prick.

Well... that's something for me to do this afternoon :shifty:

[imdying]

Dude what the hell did you do to it! :blink:

I have to say, I do find it a little ironic... the only reason I was hanging onto that bottom end was for gearbox spares!

[Asher]

Dude what the hell did you do to it! :blink:

I have to say, I do find it a little ironic... the only reason I was hanging onto that bottom end was for gearbox spares!

It wasnt your old box it was the one i got out of the other bike.

Heres the damage:

http://farm9.staticflickr.com/8170/7927949354_fb5420a95a_c.jpg

http://farm9.staticflickr.com/8310/7927948358_bc2b6ae0a4_c.jpg

http://farm9.staticflickr.com/8457/7927947792_5cb1ff4101_c.jpg

http://farm9.staticflickr.com/8441/7927948860_36b707f937_c.jpg

http://farm9.staticflickr.com/8033/7927949634_7be29ccd41_c.jpg

[Fast Eddie]

wooo!

:crazy:

[Drew]

How's that hundy sounding?

[bogan]

How's that hundy sounding?

Overpriced? :lol:


You got enough spares to just swap parts around then?

[ducatilover]

How's that hundy sounding?

Mate, I have a sweet deal for you :facepalm:

[Drew]

Mate, I have a sweet deal for you :facepalm:

I don't want a rooted GN sorry.

[Asher]

I have 2 other gearboxes to swap it with but they are both short ratio.

Anyone will to guess why it happened? i dont really want to put another one in just for it to happen again.

[Drew]

You had gear box oil in it aye?

Don't be offended if you did, lots of people think 2 stroke oils does the whole job.

[Asher]

Yup I had some semi synthetic 10w30 gbox oil IIRC, it wasn't completely fill.
Maybe something small broke and jammed the gears and just wreaked havoc

[Asher]

So i had put a new gearbox in and it seemed to be running well apart from the running rich issue so today i put a cdi in it that i knew was unrestricted and took out the airbox.
Instant transformation; heaps of power and it sounded amazing, got to love that induction growl.
So i decided to make the most of the nice weather and go for a ride, got close to Little River and the engine died and the rear locked up :facepalm:

So i guess while it was running far too rich with the airbox on it must have been a bit lean without it.
I will pull the cylinders off sometime this week and hope they are ok.
Seems like my near new vertex pistons will be throw aways :(

[Drew]

Give ya $50 bucks for it.

[Fast Eddie]

lol, I got a spare engine/crank/gbox ;)

must be getting rare now with so many blowing up haha - might hold onto em!

bummer bout the rgv.. lucky you didn't bin the bike when the back locked up - how slow are you riding :D :D :D

[Drew]

bummer bout the rgv.. lucky you didn't bin the bike when the back locked up - how slow are you riding :D :D :DSo slow, word is that you could keep up with him, on your sidecar. I don't believe anyone is that slow though.

[ducatilover]

Give ya $50 bucks for it.

$45 and a GN250/300/Fucked

[Drew]

$45 and a GN250/300/Fucked
If I've offered him $50, why would he take $46 from you?

[imdying]

So i guess while it was running far too rich with the airbox on it must have been a bit lean without it.I think I mentioned to reverse any airbox mods you had.

At times the charge blows back out the carb into the box, before getting sucked back in. Without an airbox, all that fuel/air blows away in the wind, and you end up lean, with a melted piston.

[Fast Eddie]

So slow, word is that you could keep up with him, on your sidecar. I don't believe anyone is that slow though.

no one except you that is

[imdying]

Hey I think we have some bad arse acid lying about that you can use to take the melted piston off of your nikasil bore. Sing out if you want me to hunt around for it.

[Fast Eddie]

Hey I think we have some bad arse acid lying about that you can use.

yea, some good acid should help you forget about your bike woes

[imdying]

Oh yeah, I remember what those plastic bags full of cut up birthday cards in the freezer are for...

[eelracing]

So i had put a new gearbox in and it seemed to be running well apart from the running rich issue so today i put a cdi in it that i knew was unrestricted and took out the airbox.(


Fucks sake Asher.

Is there anyone in Christchurch who can give you an uppercut?

[ducatilover]

If I've offered him $50, why would he take $46 from you?

Simple: I'm far better looking.

[Drew]

no one except you that isLOL, I'm fast, but I crash a lot.

[Fast Eddie]

LOL, I'm fast, but I crash a lot.

to finish first, first you must finish, young son

[Fast Eddie]

id like to see someone ride an rf900 properly tho, hope we get to ride sometime :) I rode with a few rf900's down here in the south, fuckn pussies. used to EAT them on my old kwaka 750 with canvas showing on the tyres.

[imdying]

Is their any assistance we can provide to get you going again?

[Fast Eddie]

i have some spare pistons which are prob in better nick than yours :)

269846269847269848

[imdying]

I've got some acid for the bore (I hope), and some standard heads, if you've fucked them.

[Asher]

I haven't had a chance to pull the cylinders off yet.
I have a spare set of barrels and heads if they need replacing.
For new pistons i will probably buy some new oem ones from ttw as i would need a bunch of gaskets and stuff too.
I might try and get the right hand cylinder off tonight as its the easiest and im not feeling too motivated with the bike at the moment.

[Drew]

to finish first, first you must finish, young sonIt is easier to get a fast rider to stop crashing, than to get a slow rider to go fast.


id like to see someone ride an rf900 properly tho, hope we get to ride sometime :) I rode with a few rf900's down here in the south, fuckn pussies. used to EAT them on my old kwaka 750 with canvas showing on the tyres.I don't do anything properly.


Is their any assistance we can provide to get you going again?Good point, sorry to drag off topic.

I can only offer to sell you a VJ21 complete runner as assistance Asher. And maybe some advice, like for fuck sakes don't run your bike without an air filter!

To jet them is reletively low tech though. Best technique I've been told, is to puot in a wildly rich jet, ride it. It'll four stroke (fire every two cycles instead of every time) under load. Work down in jet size till the four stroking stops when you load it up anywhere in the rev range. Bingo...Jetted.

Time consuming, but super for not burning holes in slugs, or seizing the motor. It's reliable and accurate.

[Asher]

Not all bad news; only the right cylinder seized, the left looks fine.

http://farm9.staticflickr.com/8460/7990566655_dd5a779318_c.jpg

http://farm9.staticflickr.com/8300/7990575880_7ecb8253e1_c.jpg

http://farm9.staticflickr.com/8029/7990575994_55d7e54de8_c.jpg

http://farm9.staticflickr.com/8175/7990576122_541ab82c04_c.jpg

The head is fine so the only thing i will need to replace is the piston and cylinder and i will pick up some jets and gaskets while im at it.

[imdying]

Ok, let us know if we can be of assistance.

[Fast Eddie]

are you buying a new cyl or replating that one?

if ur buying a new one id be keen to take the fucked one off ur hands for dirt cheap ;)

could use em in a little night time project.

u got any old cyls lying around imdying?

[imdying]

I do! I need to have another gander at them, maybe hit them with some HCL; if they're any good I'll give em to Asher (he'd need a pair though, they're VJ22 cylinders). I seem to remember they're not happy though. Being standard bore they're not much good to me, I figure if I get another RGV or RS, and it has a standard bore, I'll just plate the ones that come with it. Although TBH I'm more keen on an MC18.

[Asher]

I still have the cylinders off the race bike I brought so was going to use one of them and buy another vertex piston or unless someone wants to buy a single ring vertex b piston for their rg150 and I buy some oem pistons

[Neal]

Try some pool acid and a ear bud to clean off the ally from the cylinder .

[Asher]

Im going to do a order off the tuning works this week so if anyone wants some stuff but doesnt want to pay full shipping hollah at me bro

[Asher]

Just went to order the parts i needed and i see the suzuki 1.4mm base gaskets are around $150 for a set. Anyone know of any cheaper, much cheaper alternatives?

Can i stack paper ones?

[SVboy]

Perhaps reread the adventures of your own thread re your "success" in regard to cost cutting and taking shortcuts.

[Drew]

I make my own base gaskets, but I tend to agree with SVboy. Get someone who knows what they're doing to help, or get everything from the shop.

[Asher]

Well the standard oem gaskets are only £11.50 each which i could deal with but the 1.4mm ones are £82.66, i dont care what you say im not going to pay that much for them.

What im wondering is can i put a .4mm on top of a 1mm gasket, or will it just end up leaking?

[Drew]

It'll leak if you do that.

Go to super cheap, and buy some 1.4mm gasket paper. Be about ten bucks.

Perfect surfaces are KEY to no leaks. Gasket sealant should be applied so thin you can barely see it.

[Neal]

Just remember to double check your squish cos thick paper will crush and give a tighter squish .

[Asher]

Any carb gurus out there know what i need to get to improve the jetting?

This is what i have:
http://farm9.staticflickr.com/8312/8056054152_96417be95c_b.jpg

http://farm9.staticflickr.com/8172/8056051569_4f687c4bf7_b.jpg

The jet needle sir-clip is also in the middle (3rd ring).

[bogan]

Carbs look fine to me, but its the plugs you need to look at to figure out jetting improvements.

[Asher]

I was running NGK BR9EIX in good condition.

When i get to tuning the carbs should i try different jet needle heights? Should the first thing i try is putting in some L260/R250 main jets?

[bogan]

What throttle/rpm/load conditions are giving you trouble?

[ducatilover]

First thing I'd be looking at is how much oil/fuel you're mixing
This may be handy http://www.702sportbikes.com/showthread.php?11233-Reading-Spark-Plugs-and-Jetting-%282-Stroke-Only%29

Or hit it with a hammer

[Asher]

Lots of power at higher rpm.
At 100kph theres almost no power in 5th and 6th gear.
~100km per tank.
Fouling up of exhausts from semi-burnt fuel and oil.
Doesnt idle well but i think thats from the plugs fouling.

What im asking for is so i can order all the carb bits i need.
When it comes to tuning there may be a bottle of bourbon in it for someone.

[bogan]

Lots of power at higher rpm.
At 100kph theres almost no power in 5th and 6th gear.
~100km per tank.
Fouling up of exhausts from semi-burnt fuel and oil.
Doesnt idle well but i think thats from the plugs fouling.

What im asking for is so i can order all the carb bits i need.
When it comes to tuning there may be a bottle of bourbon in it for someone.

I've not done any 2T carb tuning, but I guess you need to be more careful to not lean it out too much than with 4T. Those problems suggest the needle should be dropped a notch.
Idle can be set using the fuel screws (or idle adjuster) after the rest is done right.

[ducatilover]

Have you done a plug chop?
No point buying stuff without knowing what exactly it is.

[Drew]

When it comes to tuning there may be a bottle of bourbon in it for someone.Oh thank god. I'm not being a prick, but you're out of your depth when it comes to jetting and tuning mate.

If it was all parts from one bike, you'd have a shot of sorting it, but the pipes alone make the fueling requirements completely different.

Ya need someone who tunes smokers regularly, there's probably a hundred dudes who could jet it up nice in the bucket racing scene.

PM kickaha on here. He will point you in the direction of a capable tuner.

[Asher]

I think with aftermarket pipes you typically need to drop the main jets down a size so i will grab some 250's and a few other bits.

[Fast Eddie]

:corn:

hehe

[Kickaha]

:corn:

hehe

It wont be to long before he's doing yet another rebuild

[Asher]

Gez you guys are so supportive.:laugh:

[Drew]

Gez you guys are so supportive.:laugh:Dude, we've tried, and you no risten. Going leaner is WRONG! If it breathes more, it needs gas to compensate. Not because it goes bang better, but because it keeps it cooler.

Fuck sakes. Get someone who knows their shit, or you are doomed to keep rebuilding it and spending a fuckin fortune.

Unsubscribing in 3...2...

[Asher]

I realise that but as it was it was running rich (or so i believe), it only seized because i took the airbox off. Earlier in the thread the advice has been to buy a jetting kit which is what im trying to do.
I do appreciate everyones help and advice and i havent been trying to ignore it.

[Kickaha]

Put it back to how it was when it was "running rich" and work down from there

If you had any brains you'd suck imdyings cock until his head caved in and get him to help you (if he could be arsed)

[Asher]

Hahaha.
Thats what my plan was, not sure how you would go about tuning a bike that isnt running.
I will do an order from the tuning works tonight (finally) and just grab an assortment of bits that will cover anything i will end up needing.

[Sable]

In my current inebriated state I find this thread highly amusing.

[Metal Doctor]

i've had an rgv250 great little bike but what a headache it was! when it was running well it went like a rocket but there was something always wrong with it!!

the problems i had were all related to the electrics, blowing regulators, powervalve servos, shit like that!

i kept throwing cash at it untill i got pissed off and sold it.

the aprillia rs250 has the same engine but none of the shitty suzuki electrics.

[imdying]

i've had an rgv250 great little bike but what a headache it was! when it was running well it went like a rocket but there was something always wrong with it!!

the problems i had were all related to the electrics, blowing regulators, powervalve servos, shit like that!

i kept throwing cash at it untill i got pissed off and sold it.

the aprillia rs250 has the same engine but none of the shitty suzuki electrics.

The Suzuki electrics aren't 'shitty'; judging a bike on your own lack of competence in maintaining it isn't very fair.

[Fast Eddie]

the aprillia rs250 has the same engine but none of the shitty suzuki electrics.

lol i own an aprilia rs250.. italian electrics leave a lot to be desired.. I'd be keener on the jap stuff myself!! lol

[imdying]

I've recently been through an RGV250 loom, and the only faults I found were added after manufacturer... i.e. thicko lazy kiwis butchering it instead of doing things properly.

The SAPC is about as rugged as something like that can get... there's nothing flash or breakable in it (unless you physically break the whole thing), it's not like an NSR250 where they fry themselves internally. The PV motor assembly is 5 wires... 2 for the PV motor, and 3 for the position sensor feed back loop... so a pot and a motor, that's it. If you can't figure out exactly how that works you're a thicko. As far as the regulator goes... one can only assume it's was yet another badly maintained bike and the earths were dirty. The important connectors are sealed, everything else is basically common to every other Jap bike.

They're so damn simple there's just nothing to break on them.

[ducatilover]

I've recently been through an RGV250 loom, and the only faults I found were added after manufacturer... i.e. thicko lazy kiwis butchering it instead of doing things properly.

The SAPC is about as rugged as something like that can get... there's nothing flash or breakable in it (unless you physically break the whole thing), it's not like an NSR250 where they fry themselves internally. The PV motor assembly is 5 wires... 2 for the PV motor, and 3 for the position sensor feed back loop... so a pot and a motor, that's it. If you can't figure out exactly how that works you're a thicko. As far as the regulator goes... one can only assume it's was yet another badly maintained bike and the earths were dirty. The important connectors are sealed, everything else is basically common to every other Jap bike.

They're so damn simple there's just nothing to break on them.
Mine's simpler :bleh: