adjusting air screw on 300ex carb

[thursday]

the reason im doing this is becuase my exhuast gets really reallly hott it makes burn marks on my exhuast i have told i have adjust the air screw rite now im running a 140 main jet how far do u think it should be turned thanks alot

[DirtyGirl]

Close it off 1/4 turn at a time. Also you could try adjusting your needle - the needle will affect jetting across the entire throttle range. The airscrew is only associated with the pilot jet which controls the jetting at less than 1/4 throttle. What's your altitude/mods/air temp?

[batgeek]

is it just me, or does anyone else get that "special feeling" when a female talks engine stuff?

[DirtyGirl]

Haha, ya I know just enough to be dangerous. My husband does all the maintenance on our bikes and I help out. We actually were just playing with the jetting on my 300 this morning so its all pretty fresh in my mind.

[thursday]

im not sure of my altitude but the temp is usally 30-45 degrees here in jersey the only mod to the engine is k&n filter and sparks pipe\

thanls alot