I did a search online and on forumosa and couldn't find any relevant information to what im trying to do.
Right now I have a pretty much stock NSR 150cc.
I found this page to be helpful for upgradeshttp://tyga-performance.com/
From what I understand ( correct me if im wrong) the stock Taiwan nsrs make 20ish hp and if you replace the head to the thai/japanese non kymco head you can get
30ish hp and maybe with pipe, reads, jetting you could get an unreliable 35-40 hp.
There was a guy that did a nsr250 to cr 500cc swap http://www.dreamgate.ne.jp/NSR/Project% ... _main.html
and it turned out to be to much power and shakey
So heres what im wanting to do ideally
Instead of paying a lot to mod the current stock 150cc just to make it more unreliable, parts including replacements are getting harder and harder to find for it
I want to hear some suggestions on a 250cc dirt bike thumper swap, something easy, reliable, 40ish hp stock and will fit the frame easily without something shakey like the above nsr500 build
I was thinking along the lines of a cr250 motor or another 250cc 2 stroke dirt bike engine that could be swapped in using the factory nsr150 engine mounts without any mods or slight cnced engine
mounts that I could get done locally.
I understand the whole safety thing so if I had to 1 time a year i could put back in the 150cc motor I really feel a 250cc swap in would be my best option for long term performance and reliability
Im also open to putting in a nsr 250 engine if the frame mounts are the same, but a newer 250cc dirt bike engine would be easier for replacement parts