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Dirt Bike Discussions By Brand
Kawasaki MX & Off-Road Dirt Bikes
KX85 engine vs KX100 engine
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[QUOTE="motometal, post: 1125047, member: 24727"] i'm pretty stumped too. if the air screw isn't having much affect, could it be a plugged circuit in the carb? The one that has an entry in the airbox side and goes past the air screw. If this is blocked, you will get fuel through the pilot jet but not enough air to go with it. It will behave almost like having the choke on. This can get blocked if a small pc of debris enters along with the incoming air. The best way to learn about which passages go where in a carb, is to take WD40 with the red straw attached and spray it in the different orfices and see where else it squirts out. Don't wear your best shirt for this. If this were a street bike or a bike with a vacuum port on the intake side, you could easilly test the theory by giving it more air to see if the idle picks up. I think it's a long shot since both carbs are doing the same thing, but don't know what else to suggest. If I were there, I could help you determine if it's running rich at idle or what. Initially I misunderstood and thought it might be running erratic/lean at idle, a crank seal could do that, but now that you have explained more it sounds rich to me. Good compression, right? [/QUOTE]
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Dirt Bike Discussions By Brand
Kawasaki MX & Off-Road Dirt Bikes
KX85 engine vs KX100 engine
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