Quote Originally Posted by facapino View Post
valve = open and close para pumasok air/fuel mix.... labas exhaust. bigger valve allows more air/fuel in, expels more exhaust.

big carb = carb with bigger diameter than stock

crank pin = humahawak sa conrod. +5mm pin means may + 5mm offset ang crank pin. effect---> more torque

bola/rollers = nag de-determine ng "shifting" or movement ng pulley. why different weights? lighter weights shifts at high rpms. heavier weights shifts at low rpms.

stroker pin = yan din yun crank pin

for more detailed info sir, try google.
congratas pala sa bore-up
salamat kaau sir!, nka sabot nako sa mga use nla! punta aq shop bukas!