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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
Yzf 400 won't start need help!!!!
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[QUOTE="dirt bike dave, post: 1433649, member: 18302"] Have you checked the valve clearances? If the valves are set too tight, the valve's won't close all the way, and the bike will be hard to start and it will run poorly. If you do get it started, the clearances will get even tighter with heat, making it impossible to re-start. FWIW, the early YZ 4 strokes have a reputation as difficult to start (never owned one myself). [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
Yzf 400 won't start need help!!!!
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