As the chassis is starting to get into shape and has real potential. Will post origina ltiming specs for GP100 motor that I have laying on the bench when I get them sussed(was planning to strat by boring to 125cc but will hold fire for thr moment).Also in the middle of a house renovation project.ДЄnyone wants basic 2 stroke answers.

I suspect some of the bucket tuners have applied some of this as one 50 cc bike seems to have more power than most 100's or 125's. I'm guessing some of this could be applied but thats getting many steps ahead of myself. The porting pics have intrigued me as has the toroidal head.(only just heard about it-Yeah we all have to learn how much we don't know) a N.Zer engineer for GRand Prix(unsure as to which teams he's worked for). Recent reading as led me to the TSS500GP macine developed by Wayne 'Wobbly' Wright. As much due to the fact that several of the faster bikes didn't last. I've recently just got an inkling as to how far behind the times it is.still I came 4th in the Bucket GP. Approx 17hp, rideable and very reliable but I'm under no illusions that it's any where current in terms of design. This was my first attempt at tuning a 2 smoke and all in all was pretty successful. My existing motor is the same thing developed according to John Robinson's specs in a Performance Bike article from the 70's but not taken as far as him. Well I'm looking at building a new Suzy GP125 bucket race motor hence my interest in other threads on K.B. many effective solutions have been discovered by in-experienced observers, simply because they applied logic that the rest of us missed, because we where 'too involved'. What I mean is, lets try to simplify it, so that EVERYONE can contribute

I am unsure of the rules you can apply when starting a thread, but one I would like to place is that no-one is allowed to Looking at the current NZ bucket racing rules, I see the potential for developing a very special type of engine.ДЄ 125cc, Air cooled Two Stroke, limited only by it's capacity, (and), a 24MM carb. Let's all get together and start a 'Two stroke tuning' thread that rivals others in the world, as, we are all Kiwi's, and as such have an amazing pedagree (particularly when it comes to high powered racing Two stroke engines (Kim Newcome for example, & the often forgotten B.S.L Team, and it's conceptor, Brian Buckley). It would be nice to move this in to the 'Mainstream' section of this site, and I hope we can do this shortly, however, 'Good things take time', and some co-operation is needed.

Two stroke performance tuning