Might be a stupid question but i just jetted my bike i put a new fatty and silencer and reeds on was wondering how i should know when the jet is good enough and i can stop messing with it is the spark plug the only way i can tell it's good besides the obvious feel and sound of the bike
spark plugs tell a lot. and it depends on your throttle position. if its runs good till you git to ur top end, then its a main jet, but yeah, spark plugs are a good stroy teller.