stock carb jetting

[trx440exryder]

I have a 440ex with stage 2 hot cams, a full big gun pipe and a stock carb with the choke plate taken out i cant seem to get the jetting right can anyone help me out? Please

[400exrider707]

filter? Lid on or off? List every single motor mod inlcuding exhaust/intake. Elevation helps as well. What jetting are you running now? What is it doing? Whats the plug look like?

[Eviltanker]

42pilot, Go to Jetsrus.com and order mains from 158 to 170 + and start your fuel screw at about 2 1/2. hope this helps. what do you have now?

[trx440exryder]

i have an aluminum airbox with uni filter right now i just have stock main with 42 piliot jet its running kinda lean and it backfire thur the carb at like 1/8 to 1/4 throttle

[400exrider707]

Try needle clip down one position keep the 42, and 165 main. 2 1/4 turns out on the air screw. Try that and see.

[Eviltanker]

Yup.... Thanks 400exrider707, I forgot the needle part..I'm trying to think of this while at work.

[400exrider707]

Originally posted by Eviltanker
Yup.... Thanks 400exrider707, I forgot the needle part..I'm trying to think of this while at work.

Me too, and right now exriders is getting more thinking than work :devil:

[Eviltanker]

Getting the shi^% of this work thing. It's taking away from my obsession!:devil: