OK guys im lost. when im riding at 1/2 throttle the quad runs great, When i hit the throttle to wide open the bike falls flat on its face. So far I have changed the spark plug, Fuel filter and fuel pump with no luck. any ideas? thank you,

Jimmy

 

Try pulling choke lever out a little at full throttle,see if helps.If does then possible main jet clog

 

If it isnt the main jet check the diaphram for a crack

 

Thanks guys I will give these solutions a shot and let you know how I make out. Thanks,

Jimmy

 

ok guys. I tried pulling the choke out when the bike starts to fall on its face at full throttle. It didnt make any difference. What do i try next?

 

Checked for water in fuel system/carb? Water settles on bottom of carb and tank(just a thought) Running stock air box and filter? Pulled carb down,checked internals? Tank/carb vent lines clear,not pinched? Does it feel like bogging down or limiting(surging)?

 

Its definitly bogging down. If I release the throttle when the bogging starts and I hit the throttle again it reaches full throttle no problem. I have a K&N airfilter. I havent pulled down the carb yet, I wanted to make sure that was the problem before doing so.

Jimmy

Jimmy

 

If K&.N clean and oiled properly and still bogging,I'd check carb for contamination. Could just need cleaning or water might be present,FIRST drain carb line, if water present,will BEAD up on floor along with gas.

 

ok I will try your suggestions this weekend. thank you

Jimmy