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Yamaha MX & Off-Road Dirt Bikes
Just picked up two bikes, already having trouble
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[QUOTE="NO HAND, post: 1314325, member: 18937"] After years of improper winter preparation, you get old gas to form varnish in the carb. Lots of varnish and deposits in the carb circuits make for a lean condition and a lean condition leads to too hot temperature in the combustion chamber, and too hot temps equals well... a hole in the piston. [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
Just picked up two bikes, already having trouble
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