Gas

What other kind of gas can i run in my STOCK 2002 400ex besides reg. 94 oct. At what rato and what kind ? Can i use 110 oct? Can i use race fuel??

[MIKE400EX]

Race fuel (such as C12, Cam2 etc..) is OK. It'll run a little cooler and throttle response will be better. Ratio is what your wallet can stand, straight or cut. You may need to rejet. Smells good. Power gain is from 0 to marginal. Generally much more uniform quality than pump crap.