bbk ??????????????help/?
 

i installed 100cc know my crank is going bad dont want to put it with new top end wher can i get a good one cheap

This guy is on another forum im on and i dont think you can find it cheaper http://www.ebay.com/itm/139QMB-GY6-5...item3a7cd244d6

It also helps to state your motor and scooter model but i guessed 139qmb cause you said 100cc bbk and the tooth count on the oil pump you need to know before ordering a new one some name brand ones half way down http://www.racingplanetusa.com/engin...8b620f90ea40b2