What Jet Should I Run???

[sweet t-rex 400]

I have an 400 ex with a 416 Wiseco 10:1 compression piston with a stage 2 magnum cam(is a little bigger than the hot cam stage 3) I got an AMR stage 3 rev box on it with full curtis sparks pipe and k&n filter. I wrapped the pipe with header wrap and added a spal fan. It still runs hot????? I believe its running lean since i never got into the carb and dont know the jet size. If you have good knowledge of this set up PLEASE let me know a good size for the jettting...thanks:D

[CJM]

168-175 main, 42 pilot.

[FisherRacing94]

i agree with cjm and also I would move your needle up one position while your in the carb jetting.

[sweet t-rex 400]

thanks for all the help...will let you know how it works

[JOHNDOE83]

Originally posted by FisherRacing94
i agree with cjm and also I would move your needle up one position while your in the carb jetting.

Just to be clear, he means moving the clip on the needle down one notch which will be raising the needle position.

[FisherRacing94]

Yea I did. I wasnt really clear on that yea you want to raise the needle so down one positon putting the clip on 3rd positon.