Question about 2005 Yamaha Road Star Silverado
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The coil resistance checks would seem to be normal. To confirm, compare with the readings of the front cylinder coil. If rear ignition coil is breaking down, then it would have excessive heat build-up or misfire would be after some time not right after starting.
An alternate method of testing the ignition coil would be to use extension wires and temporarily switch the trigger wires from the Ignitor to the front and rear coils. Determine if the missing spark would now be at the front. The sparkplugs would have to be tested just lying down on any metal part.
The only way to determine if it is an ignitor problem is to eliminate all the external factors. If all else checks good, then it would be an ignitor issue.
Would appreciate any updates.
Good luck and thank you for asking FixYa.
Posted on Nov 13, 2009
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Posted on Jan 02, 2017
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