If i put a high compression piston on my dirtbike would i have to change anything else on the bike crf250?

Question

i have a 2006 crf250r dirt bike and was wondering if i put a high compression piston on my dirtbike if that would make me have to change anything else.

Answer 1

you would need a different power band

And a new fetzer valve

to control throttle slackoff

Answer 2

The main thing you have to do is run race fuel only. Minimum of 104 octane. Something like VP Red.

Answer 3

you may have to change your jetting specs. plus you may have to run a gasoline that has a higher octane than pump gas. VP racing fuels makes a gas for this. I think it has like 104 or something like that.

Plus make sure you have your valves checked. you do not want to put in a high compression piston if the valves cant handle it......

but other than that, no major changes are needed.