jaguar
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I have a rebuilt '89 Honda CR250; new piston/rings, new bore job, HPP working good, stock pipe. It has plenty of low end power but is just plain linear up to its top rpm's. The port timing is 89 degrees exhaust (w/valve open) and 119 degrees transfer.
Any suggestions for more top end power w/o losing much trail riding low end power? I was thinking about raising the transfers a bit since I can't see changing the exhaust timing because that edge is where the cylinder meets the power valve.
Any suggestions for more top end power w/o losing much trail riding low end power? I was thinking about raising the transfers a bit since I can't see changing the exhaust timing because that edge is where the cylinder meets the power valve.