fasterz
02-07-2004, 01:58 PM
well i took 5inches off my HMF, and then i rode it with the 165 main that i had in there b4 i cut the pipe, it ran ok but it had a lil popping on top end. so i went and got a 170, its runs amazing now but when it idles it has a little disturbance in the idle, should i mess with the air mixture screw? also it has a lil popping on deceleration sometimes. please help, thanks btw this is on a z400