fcr help

[witti]

I got a 39mm fcr for my 400ex. I have a stage 2 hotcam, fmf pipe, k&n filter with no lid.

The tube that the fuel line hooks up to moves, is that normal?

When I start the quad it pops out of the carb once in a while. I richened the pilot and it helped a little. I did not have much time to mess with it yet, plan on doing more of friday.

[JD400exrider]

Mine moves swivels up and down. Coming out of the carb does not sound right. Leaking gas when that happens. :confused:

[witti]

Yours swivels also, so thats normal then. No it is not leaking gas it just swivels. Thanks.

Has anyone had trouble with a poping/backfire out of the carb, before tuning it in?

[pnut420]

Yep you need to get it jetted better.