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View Full Version : Problem over the whooops



nitro_nb
04-26-2007, 02:09 PM
My quad feels like its about ready to die when I go over the whoops and it just bogs down like its gettin no fuel don't know what I should try first. I got a 01 EX with a yoshi slip on and K&N with no lid. 155 main jet pretty sure stock needle and pilot. I'm at sea level right on the coast. I adjusted the valves and cleaned the carb what next?

2002Honda400ex
04-26-2007, 03:09 PM
Try adjusting the air/fuel screw. Make it a little more rich if you are running lean. You could also put in a bigger jet

Sparky_20
04-26-2007, 08:57 PM
mine does the same thing and its pure stock, maybe normal?

400exrider707
04-26-2007, 09:00 PM
My 450R would do this as well as when landing from a jump on the gas. Try running with the petcock on reserve, it cures the R's problems. Also you need to bump up the pilot jet and lower the clip on your needle.

GPracer2500
04-26-2007, 09:05 PM
One thing to check is make sure the slosh baffle is still there and in place. It's that little plastic "cup" that surrounds the main jet.