Need Help Please

[400ex18]

Ok guys i have a 04 400ex, when u sart it up it will idle but as soon as u touch the gas it will die, when the choke is on it does pretty much the same but will run a little better! I have done evething i know! So what do ya all think??

[hondaman954]

Make sure your tank is full with fresh gas.. If that is good, then take a 17mm wrench and unscrew the botom of the carb and drain the carb out. (make sure the gas is off) after it all drains out and u clean the 17mm nut out, reinstall it and DONT over tighten it. It sounds like moisture or water got in the carb..This will help.

[400ex18]

I have cleaned the crab and put fresh gas in, that was the first thing i did! and it still does it! i dont know what else to do i have put new plug i even put 110 oct race gas in it thinkin that might clear it up! i really dont know what else to do!

[Old Head]

Did you let it warm up? mine does that until it warms up for at least 5 min.