i have a mountain max 2002 with ported and bored silinders to 750cc,peak head with 18cc domes,vforce reeds,wiceco pistons and pipes.the motor is allways blowing the head gaskeds and last time he did i toasted the pistons allso.i am driving at 1000-2500 fet.is the compression to high for the gas?,i use 95 oct.should i use v-power(99+oct)?? is the timing too far advanced?i did not mess with it..please help me iam in iceland,there are no motorbrains here.
aSRX600guy
New member
there are different ways of measuring octane rating, I'm guesing that your getting different measurments than in the states.
sea level haeds are 21 cc, most hi riders run 19, and I'm talking 10,000ft. 18 seems way off. Maxdlx
braindead1684
Member
Might seem simple but maybe your heads or jugs are warped slighlty.