manuel
12-17-2014, 09:56 AM
I just bought a yfz 450 jetted for 110 octane with stock compression I'm trying to change it to 91 octane? Do I have to change my main jets? What do I have to do? Any help is appreciated thank you
It has a full yoshimura pipe, k&n filter, hot cams, intake cams,
It has a full yoshimura pipe, k&n filter, hot cams, intake cams,