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View Full Version : problems with my 400



fatboy666
03-14-2010, 12:52 PM
only owned the quad for a little while. i bought it with a twist throttle on it. and hated it. i bought a thumb throttle for it and a new cable and installed them.

i never really rode it to much with the twist throttle.

it seems now when i hit a jump in top of 2nd or top of 3rd. when i land it boggs out real bad. if i hold the throttle while bogging out it shuts off.

i cant figure it out. i do know that it has been jetted for the pipe and runs great until i hit a huge bump or jump.

it has an aftermarket all aluminum air box maybe its getting to much air and not enough fuel.

anyone know?

its really starting to piss me off.