I know it has been beaten to death but....

[unlimitedjeep]

....what is the correct jet size for my setup or at least a good place to start...I have the k&n filter, stock air box and a FMF Power Core 4 silencer....I know I should go with a 42 pilot but what about the main??? I am around 750-1000 feet above sea level if that helps. Thanks in advance..

[fuddrucker]

Hmm,,, me thinks more info might be needed. What are you riding?

Ive ran that setup before on a 400ex. Go up 1 or maybe 2 sizes on the main,,,wouldn't hurt to raise your needle up one notch too..

[unlimitedjeep]

Ooooops sorry about that....forgot to mention it was for a 2000 400ex....I was a little tired when I posted. :)