jetting

[nolan400ex]

hey if anyone can help me. i have a 02 400ex with a stock exhaust with the baffle out and a k&n with the stock air box with no lid. in the summer i was running a 152 main jet and stock pilot. it is now winter and im gettin too much air and when i put the lid on im gettin to much gas. does anyone know what size jet i should go up to get it to run ok i nthe winter. i was thinkin a 155 but im not sure?

[Honda#4]

Put a #42 pilot in and a 155 and you should be pretty close might have to turn the A/F screw out 2 or more turns.

[Eviltanker]

I just put a couple strips of duct tape over the airbox and it works fine.

[nolan400ex]

ill try that thanks for the tips!!