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raptor 660 no spark please help

Brian Maybury

By Brian Maybury
in Yamaha ATV Forum

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Brian Maybury Newbie

Brian Maybury

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this is my last attempt to find the loss of spark issue ive gained spark back and lost it 3 times now and now i cant seem to find how to get it back.. i put on a whole new wiring harness new cdi box new rectifier new stator new flywheel new coil new spark plug new battery i have a spare ignition and switch cluster and still just cranks over with no spark. i even swapped parts onto my buddys running 660 and my parts all start his quad. ive tried unplugging the rectifier still nothing someone told me to try unplugging the stator wire it could be the pulser and i tried that still nothing. checked all my grounds all light are bright etc. what am i overlooking? there is something that is on this thing that i missed any ideas would be greatly appreciated before i scrap it or part it out.

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