150m, 40p, slip on w/ lid , this ok?

[maxamillion]

well my 152 main jet got here a few days later after my HMF with q core. Ive been riding it with the 150 main and 40 pilot and it runs great. There is no backfiring or hesitation. I just want to make sure im not to lean. Do you guys think i should put the 152 main in or just leave the 150? thanks

[400exrider707]

I would say go to the 152. Almost every pipe manufacturer recommends 155 or 152. Also if the temp is pretty low you might consider the 155 anyhow, and a 42 pilot to aid with cold weather starting.