Ok I just finished rebuilding my blaster....top end and lower end.........i put a little oil in the gas to make it run rich.....put 10w 40 in the tranny.....and it seems to be running good.........except while running it....i hear a pounding noise coming from the top end.....is that because i bored it and thats how it runs or could that pounding be something bad??????

let me know
thanks

i do know with our old blaster motors, the more you bored them the lounder the top end slap gotr, did you take off the oil injection?

no its still oil injected

id highyl sugest eliminating that if you have any mods doen to your bike.