honda C90 tuneing

[callum0666]

anyone got any tips of how to squease a bit more power out of a C90 ideally without spending loads, me and sume friends are doing a big trip on them and just want a touch more top end. iv tried going up a tooth on the front sprocket but dont think its quite got enough power to make use of it. any help appreciated

[byrnesix]

Any website dealing with Honda Monkey bikes will have tune-up parts. I suggest a piston and barrel kit to increase capacity to 110cc. Increasing gear ratio will not work without increase in power from engine. Matching the inlet manifold to the cylinder head will help but you will probably not notice the increase in performance from this simple change.

[bazmoore]

how bout running it on pure methanol with oxygen injected into the carb

should go like a bomb