[codysize99]

Alright so I have a 2003 400ex I just rebuilt the whole top end and now it bogs down like it's running out of gas. It will start up and idle just fine I can rev it up and everything but when I go to ride it I can get about 50 feet before it starts bogging down like it's not getting any fuel and does but then it will start right back up and do it again. Any help would be greatly appreciated thank you and God bless.

 

[Miles88]

Try a quick shot of air into the carb wear the fuel line connects to. Might be gummed up and only letting enough fuel in to run that long. Also make sure your getting a steady stream of fuel and your air filter is clean.