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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
98 YZ400 pair of strange problems
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[QUOTE="holeshot, post: 1366403, member: 17202"] This is probably not the problem, but - The gas tanks on these 400's/426's often developed cracks (and leaks) at the rear corner of the tank. The result is that gas would be sprinkled on the air filter at various points in the ride, creating a rich condition that caused the bike to burble and cut out. Sometimes, it wouldn't leak and develop problems until later in the ride (when things got aggressive). People often referred to this as Yamaha's "self cleaning air filter system". :laugh: Just something to look for ... [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
98 YZ400 pair of strange problems
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