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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
99 Yzf 400f
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[QUOTE="Ol'89r, post: 1125804, member: 17212"] Ajax. I had a '99 WR 400 and it was a great bike. The carbs on those years were a little tricky. BSWIFT made some good suggestions and after you check those, if the bike still won't idle, you probably have a clogged pilot jet or pilot air passage. Remove the float bowl and remove the pilot jet and air screw. Look through the pilot jet and make sure you can see daylight through it. Blow compressed air through the air passages to make sure they are not clogged. Remove the little offset cap at the bottom of the float bowl and clean it. That is you accelerator pump and they sometimes get sediment and water in there and the bike won't take the throttle correctly. If there is sediment or water in the cap, check the little rubber boot on the accelerator pump rod for damage or misplacement. Take part of that $100.00 and purchase a service manual if you don't already have one. Good luck. :cool: [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
99 Yzf 400f
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