been having abit of a look on google images and found a 4 valve head to suit a yx engine are they worth buying im planning on putting the biggest piston i can in my yx160 so its like 180 upwards would this head be worth it over a ported 2 valve?
hi does anybody know what the biggest bore you can have on a yx 160cc motor with the stock 57mm stroke is also can i just get a piston and have the cylinder bored? or do i need a new cylinder with a bigger sleeve? any help would be great i want a 65mm bore
hi im new to the forums so i dont know alot about these bikes yet my motor is a yx 160cc and i want to get a bigger cam for it where should i look also can somone answer these questions for me.
do these motors have a rev limiter at all
should i upgrade the cdi
should i get roller rockers...
