The Mut

[koba]

Is that the bike that was on trade me, I think it had a 6 hundy motor in it.

Anway I Don't think it would be over heavy once stripped back. I have a FZ Deltabox frame for my next project which would be a similar weight.
Concentrate on getting your steering and suspension right before looking for heaps of power.

I run a Loncin motor, out of the box is is a bit gutless. The standard carb is crap. Unfortunately the pumper carb is an upgrade but worth every cent. The Loncin motor is very reliable mines had a good thrashin. Very easy to handle with good torque and power spread. Further mods eg Head, and cam work get a bit expensive (unless you can do it yourself).

and for the money spent you could buy a S/H FXR motor.

Yep thats the one.
It was an interesting racebike, had alot of problems relating to getting the big vibratey single to work nicley in a light aluminium frame.
I entered four rounds of winter series on it and didn't get a single clean run on it, shame really as with a bit more work it could be made to go quite well.
It was a monster beast with so much low down grunt in such a little frame.
It had the biggest sprocke it could fit on the front (17 i think) but needed a smaller rear as that was 45 teeth.
Weird feeling having it in 5th gear down the back stright under a red flag - take the hand off the throttle and it would idle along it top at probably a hundie kays!

But I digress.
It is the one, soon to be bucketised. (when I get off my arse!)
I have been looking at engine options and the final form will probably be serious but for now I'm just going to bung in the first available option while I (as you say) gaet the rest of the bike sorted.
It handles MINT with a 48kg engine in it so hopefully a lighter one won't hurt.

[koba]

Oh, and the frame and swingarm is around 12.7kg, the subframe is 5.8 at the moment.

The subframe can be made a fair bit lighter now, it had to have a bit of meat in it before to handle the big single.

I am thinking of making a thin fibreglass dummy fuel tank kind of like an Aprilia RS50 and having a small plastic tank under it (Rip off of Kyles bucket!)

I will be putting a bit of steel bracing into the old front engine mounts tho as crash protection, I want to avoid bending these if at all possible because I may need them in the future.

[speedpro]

I'm having trouble envisaging how the subframe connects to the engine.

[koba]

I'm having trouble envisaging how the subframe connects to the engine.

It doesn't.
(Altho I did make and engine cradle subframe thing for it)
The frame connects to the engine and anything connected to the frame or engine or anything connected to anything connected to the engine needed to be able to handle the vibration transmitted thru the whole lot.

Including the rider.. When I put solid alloy pegs on it I couldn't weight the pegs because it would vibrate my feet off!
It was ok with heavy rubber ones tho.

Until I owned this bike I wondered why Harleys are built like brick shit houses and old beezers drop indicators like CB125's drop valves.

Anyone want to buy a modified KLR600 engine?!

[quallman1234]

Anyone want to buy a modified KLR600 engine?!

I think a 600cc vibrator would be more approiate.

[koba]

I think a 600cc vibrator would be more approiate.

Whatever you do with it is YOUR business!

[koba]

Bugger.
Project now on hold.
Both running RG's in the family died today
One with a rattly bigend and the other a nasty piston seizure.
One week 'till the next round to fix the race one and urgency on the road one because it is primary transport.

[deanohit]

Bugger.
Project now on hold.
Both running RG's in the family died today
One with a rattly bigend and the other a nasty piston seizure.
One week 'till the next round to fix the race one and urgency on the road one because it is primary transport.

Bugger mate, good luck getting them sorted.

[quallman1234]

Bugger.
Project now on hold.
Both running RG's in the family died today
One with a rattly bigend and the other a nasty piston seizure.
One week 'till the next round to fix the race one and urgency on the road one because it is primary transport.

You can get Rod Kits for 250, off Motorcycle parts.
SAECO for the Bearings (Only need C3).
SEL for the seals.

Way cheaper than the way you did it last time .

[Str8 Jacket]

You can get Rod Kits for 250, off Motorcycle parts.
SAECO for the Bearings (Only need C3).
SEL for the seals.

Way cheaper than the way you did it last time .

Gee whizz. A bit late, dontcha think!!! Poor mr koba is working his arse off, all night after work to get these RG's sorted. You should call in to his olds place and give him a hug....

[koba]

You can get Rod Kits for 250, off Motorcycle parts.
SAECO for the Bearings (Only need C3).
SEL for the seals.

Way cheaper than the way you did it last time .

Cheers man, I have noticed the genuine suzuki stuff is fancier with Viton seals and the like but yeah the cheaper stuff seems to handle the jandle ok.

Having seen the difference between a genuine and one type of aftermarket head gasket I can understand the price difference but it kinda makes me want to have a go at making one out of copper...

Hugs may be a bit much...

[quallman1234]

Cheers man, I have noticed the genuine suzuki stuff is fancier with Viton seals and the like but yeah the cheaper stuff seems to handle the jandle ok.

Having seen the difference between a genuine and one type of aftermarket head gasket I can understand the price difference but it kinda makes me want to have a go at making one out of copper...

Hugs may be a bit much...

Talk to the guy at SEL again, im sure he can find some viton seals etc. They have ever single seal that is made by SEL in stock, and some more.

[koba]

Talk to the guy at SEL again, im sure he can find some viton seals etc. They have ever single seal that is made by SEL in stock, and some more.

Bah, he knows his shit aye.
From that wealth of knowlede about both bikes and seals he deetermined viton was unesserary unless somthing goes wrong and it gets waay to hot.

[koba]

I greatly enjoy reading all the stuff TZ, Speedpro, F5 Dave and others post up about what they are up to and how their projects are going so I should probably update mine a bit more!

Right, a fair bit has happened over the last few years, not quite as much as I would have liked but I guess we all get that!

The MB100 is the choice I settled on for an engine in the end, but before I did that I bought an entire running MB from Bryce at Buckets 'n Bits for $400 and ran that "as is" for a while.
It was standard except the usual strip down and it had a really snappy (fun!) chamber on it.

I ran that as my bucket for a while but always intended to put the engine in the NSR frame. I had a few second thoughts about this as I raced the MB because I did quite like it and the light weight made it quite fast for what it was.
It was also a bit of a hoot to take out on wet grass and have a skid with its old solid baldies.
I gave a reasonable amount of thought to working on the MB frame and suspension to try and make it handle better but it the end I decided to stick with the original plan.

Mounting the engine.

Mounting the engine was quite a bit harder than I expected. I changed the design around lots but I'm glad I did as I ended up with a design that works well in all aspects. (Shit that sounds like a bit from a jap sales brochure!)
I managed to build it all (with design help from my patient father!) so it required no welding and it is plenty light.

Wheels.

I ditched the RG150 rims, I had a disk made up and it was all looking good but I came to realise they weren't up to the task; I needed slicks!

That meant buying a rear rim to suit, cheers to Bryce again that was easy sorted.
Spacers made, used the standard old NSR front rim (2.5').
At some point I will remove one front caliper but there are many more urgent things to address before I get to that point.

To Be Continued...

[koba]

Pic 372 shows rear engine mount.

Pic 373 shows gear shifter adapted to suit.