400EX stalling when idle
#1
400EX stalling when idle
Hey guys.
I recently installed a White Brother pipe. I also have a K&N filter with no air box. I live at 700feet elevation. My main jet is a 170 DYNO JET KIT and the idle jet is a 42. The Dyno needle has been set at 3rd notch.
After installing pipe and jet kits, when I run for some minutes, then I am having problems staying idle. I am also having better chances of stalling when pushing the throttle from idle to *whatever*... It just dies 3 times out of 4. The screw under carb is set to about 2 1/2 out.
What is wrong?
I recently installed a White Brother pipe. I also have a K&N filter with no air box. I live at 700feet elevation. My main jet is a 170 DYNO JET KIT and the idle jet is a 42. The Dyno needle has been set at 3rd notch.
After installing pipe and jet kits, when I run for some minutes, then I am having problems staying idle. I am also having better chances of stalling when pushing the throttle from idle to *whatever*... It just dies 3 times out of 4. The screw under carb is set to about 2 1/2 out.
What is wrong?
#3
400EX stalling when idle
running rich where? idle jet, main jet, needle? screw??
I mean, the main jet seems ok since my WOT response is reall good..
When I start it, it idle just fine, so I guess the IDLE jet is ok too.
It's just when I push the throttle to go from idle to whatever throttle you like.. small push, or hard push, same result..
I mean, the main jet seems ok since my WOT response is reall good..
When I start it, it idle just fine, so I guess the IDLE jet is ok too.
It's just when I push the throttle to go from idle to whatever throttle you like.. small push, or hard push, same result..
#7
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#8
#9
400EX stalling when idle
Do you still have your airbox lid on? I am jetted the same and have a white bros and K&N and mine runs fine. You only jet to a 170 if you remove the airbox lid. And this may sound stupid but did you seat the air/fuel mixture screw before turning it out. You have to screw it all the way in befor you bring it out three turns. I live at 700 ft as well and it recommends three turns out. Hope this helps.
#10