GN250 Cafe Racer

[JMSR]

Yeah exhaust is pretty sweet. Should really be a good megaphone but this was available ready made, off the shelf to your door from CycleWorks on TradeMe. Goes much better than stock being a free flowing one-piece, and sounds great too. Removable baffle for frightening the neighbors.

Here's pic of bits.

[bosslady]

Yeah exhaust is pretty sweet. Should really be a good megaphone but this was available ready made, off the shelf to your door from CycleWorks on TradeMe. Goes much better than stock being a free flowing one-piece, and sounds great too. Removable baffle for frightening the neighbors.

Here's pic of bits.

Is that the right pic?

[JMSR]

For an earlier request.

[ducatilover]

Here's pic of bits.

Good stuff man. I had my 300 barrel decked by 1mm to get compression up a bit, easiest to machine it off the base gasket face.
The compression and 300 kit makes enough difference to fry the clutch during run-in... but shimming the springs helps, or fitting something better (I think my ZZR400 springs would fit, otherwise I have a spare set of DR600 ones, can check if the will fit)

I'll build another GN motor up when I find one cheap enough and I'll match the head to the larger bore (will have 2.5-3mm liner wall depending on which piston I can get with the correct compression height) and see how much it helps.
It may even be possible to modify an old DR/SP head of some sort to fit it
Then find somebody who can press out the crank pins and fit webs from a DR in to it...


Just for lulz

[Smifffy]

Just spotted this today, a couple of interesting ideas there. I like the look of the 'finished' job.

http://www.dotheton.com/forum/index.php?topic=46585.0

[kiwikk]

I'd like to cut my peg brackets off but I'd have to have a yarn with local the garages to see if they'd pass it without a frame mod cert or even see if they consider my modded seat single or double.

Hey JSMR, How did you get on with this issue?
I was thinking I might be able to 'pursuade' the peg bracket to shift over the necessary 12mm or so. Even if this is successful and not fatal then the next issue is sourcing cheap 14inch spring shocks in NZ. I'm going to check out dirt bike breakers this weekend.

[highace10]

Rearsets are on their way :-)

If you're after shocks, try out Tecshox. I got my longer shocks for $80 posted to my door. I've got his email somewhere, I'll find it and post it up.
He is over here in Australia but I don't think postage woukd be too much to NZ.

[kiwikk]

Howdy all, I've been lurking around for too long and thought this thread was GN cool enough for jumping in, showing off, and asking questions. Nice bike RealWolf and thanks for adding to the inspiration, the discussion about the spacers under the tank helped heaps. I even went as far as to put sandwiched spacers in the front seat mount to match. I hope you don't mind me hijacking your thread but I thought the title was generic enough for more than 1 bike. My build is more scrambler than cafe racer due to my 6ft frame but the principles are the same, just taller. Here's the build so far, early days yet and plenty of questions to come. Mods, in chronological order, are: 50mm tank and seat spacers (1st photo), straight bars and new tail light, seat cut and shaved (much easier than anticipated), trial tank stripping (looks great most angles but dominates the bike side on, black tank ordered), new rear guard rear mounting bolt holes drilled to lift tail (in line and under original holes, close to the edge gives nice lift), guards and rear shock shrouds cut down, black tank and smaller indicators, new Cycleworks full exhaust system (moved the needle to richen it up to suit) and moved tail light back, removed centre dash between dials and lowered front end 38mm (attacking corners feels much better with this mod). LOTS more mods to come including full engine mods and hot carb. This is easily the most fun I've ever had with 3 weeks and $800!

JMSR, love what you've done for your $800 !
You've done just about everything I'd planned for my old '92 wired GN
Seat looks great. Is the 50mm raise at the front enough for your 6ft ?
I'm going to look at trail bike seats which are slimline and give extra height. I'd have a go at copying your seat mod but my seat covers knackered.
I'm only 5ft 8 but being an ex trail bike rider, I'd like to get the whole bike higher by raising the back end a bit with longer shocks, for which highace10 is looking into AU suppliers. I've also encountered your issue about that stupid swingarm clash with the right side rear peg bracket restricting shock height.
Did you do anything about this or stick with the stock shocks?
Any chance of providing supplier details for those natty indicators and back light ?

[kiwikk]

Rearsets are on their way :-)

If you're after shocks, try out Tecshox. I got my longer shocks for $80 posted to my door. I've got his email somewhere, I'll find it and post it up.
He is over here in Australia but I don't think postage woukd be too much to NZ.

Cheers mate

[highace10]

Actually it's probably easier to look him up on the aussie ebay. They have a range of lengths and looks. Should help you out. If you have trouble finding them let me know.

[JMSR]

Hey JSMR, How did you get on with this issue?
I was thinking I might be able to 'pursuade' the peg bracket to shift over the necessary 12mm or so. Even if this is successful and not fatal then the next issue is sourcing cheap 14inch spring shocks in NZ. I'm going to check out dirt bike breakers this weekend.

It's a possibility, I had a look a while ago and thought it could be bent with a little heat, I wouldn't do it cold. Let me know if you give it a go.
The extra seat height is very noticeable and well worth it. The MX bars have been just has much help in that regard too. My legs and arms don't feel cramped at all. With the original set up I was sitting too far back and over bending my knees, wrists and elbows, felt horrible. Have you seen the seat for the TU250 Grasstracker Bigboy version? If you haven't already seen the Grasstracker, check it out.
All my lights are from Trade Me. I had to use a universal flasher relay ($15 from auto electrician NOT $60 off trade me!). If you change your indicators let us know before you buy the set up. There are a lot of people spending way too much and over complicating this mod. We'll help you with your wire colour matching too (can be a head scratcher).

[kiwikk]

It's a possibility, I had a look a while ago and thought it could be bent with a little heat, I wouldn't do it cold. Let me know if you give it a go.
The extra seat height is very noticeable and well worth it. The MX bars have been just has much help in that regard too. My legs and arms don't feel cramped at all. With the original set up I was sitting too far back and over bending my knees, wrists and elbows, felt horrible. Have you seen the seat for the TU250 Grasstracker Bigboy version? If you haven't already seen the Grasstracker, check it out.
All my lights are from Trade Me. I had to use a universal flasher relay ($15 from auto electrician NOT $60 off trade me!). If you change your indicators let us know before you buy the set up. There are a lot of people spending way too much and over complicating this mod. We'll help you with your wire colour matching too (can be a head scratcher).

Better late than never....

I bent it cold no problem.

Check out my new project thread: http://www.kiwibiker.co.nz/forums/sh...om-Project-FSM

oh, and thanks for the inspiration

[richisells]

I'm in Austria and am also a (ahem) proud owner of a GN250 which i'm going to turn into a flat tracker carablanco style!

[Anvil]

Hey - thought I'd throw this up on here as I've done a few mods to the girl's GN. Ended up being a real blast to ride!
Dropped the front end about 2" which improved the handling no end. so much better.
chopped the front and rear fenders
clip on bars, between the triples
little led indicators
black wrap on the pipes, black heat paint on the exhaust
smaller tail light
dropped the front light, speedo, ignition barrel. Didn't quite get it as low as I wanted - needed another 1" i reckon. (that's what she said?!)

Anyway - here it is.

Anvil.

[haydes55]

Nice. You're right about the lights etc. Cluster could do with being a bit lower. To complete the look, get a single seat, ditch the ugly lounge seat. Nice cowling behind a thin single seat will top it off.