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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
Bike runs wide open after closing throttle
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[QUOTE="dirt bike dave, post: 794660, member: 18302"] I suspect the throttle cable is damaged or not routed correctly. If the carb slide or the carb body is worn, it is possible for the slide to stick open - basically it can get wedged sideways in the carb bore. Rolling off the throttle after a wide open run would be the most likely situation (high vacuum) However, this is much more common on a 4 stroke, especially if the slide return spring is too weak, or if the owner has disabled the push/pull cable to give a lighter throttle effort. If the jetting is too lean or there is an air leak, it could cause the motor to rev with little or no throttle when very hot, but your situation sounds pretty severe. Hopefully, a new, properly routed cable will solve the problem. [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
Bike runs wide open after closing throttle
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