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05 YZF 250 spark problems

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i just rebuilt my yzf and it ran for like 10 minutes and died and now there is no spark from the plug anybody know what could be wrong

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In the back of your manual there is an electrical trouble shooting chart.

Try a new plug first, then trace the wire harness as William said, then check your stator, coil, and plug boot with an ohm meter. The manual will show you how to do this.

Good Luck.

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hey william i took the timing cover off to check for a pinched wire its nothing electrical the little key for the stator or magneto where it slides on the crankshaft the key was broke and the flywheel wasnt turning

Edited by jakextreme

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