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06 yfz no spark

This is a discussion on 06 yfz no spark within the Yamaha YFZ450/450R (2004-Present) forums, part of the Performance /Technical category; my yfz has no spark i checked the ignition coil,cdi,inspected wiring harness,checked fuses,spark plugg,resistors and how do u test a stator it turns over but ...


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Old 11-21-2009, 09:34 PM   #1
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Default 06 yfz no spark

my yfz has no spark i checked the ignition coil,cdi,inspected wiring harness,checked fuses,spark plugg,resistors
and how do u test a stator
it turns over but no spark
i have a friends yfz to try parts off so let me know
thanks
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Old 11-22-2009, 04:58 PM   #2
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anyone i need this done by tuesday please
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Old 11-22-2009, 09:17 PM   #3
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if you have your buddies to swap with, just start swapping parts, if you checked everything and it checked out, try swapping the stator...
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Old 11-23-2009, 02:39 AM   #4
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The manual tells you how to ohm the stator.
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Old 11-27-2009, 07:55 PM   #5
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got it. it was the throttle position sensor
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Old 06-04-2010, 09:54 PM   #6
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Rev How did you determine that the tps was bad , having same prob no spark it started after re jetting . tps was not moved but i think it might be something to do with wires
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