timing ??????
 

ok i cant get my cam perfect line it like a half tooth off cause when i move it one tooth ether way its a little off any opinions

Have you put the tensioner on? It (should) turn the cam clockwise when it tighthens . If it still isnt right then you may have a stretched chain.

well i did no look after i installed
tensioner

How far did you mill the head or jug? If you go too far it wont line up 100% right. In my case I ended up with slightly advanced cam timing.

Bbk 83cc help help
 

Install kit got new carb rode 12 mi ran great cut it off would not start .so i cleaned the carb now ihold throttel wide open and it wonts to crank but it wont help