jetting question

[rider250ex]

could someone give me an idea of where to start for the jetting on my bike. its stock cylinder with gt thunder stage 3 porting, coolhead with race fuel dome, boyeseen rad valve, paul turner pipe, k&n, and no airbox lid. thanks. can someone give me an idea for stock 34mm carb and for a 38 airstryker. thanks

[beerock]

forget about the 34 carb dont use it.

you should prolly start around 185-190ish and work your way down, or up depending on how extreme the port job is.

but 50-52 pilot, I recomend a CEL needle middle clip as well can make a big difference in power delivery.

youll probably end up around 175-178-180 main if your at sea level but start rich

you could call up laz and ask him info on the cylinder, maybe he put an id code on it.