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Old 09-06-2011, 03:56 PM
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Join Date: Aug 2011
Last Online: 04-13-2012 02:54 PM
Location: San Jose, Ca
Posts: 9
Default cr125 weak / intermittent spark

So I just picked up this 91 cr125 it had weak spark but ran fine but now I get no spark intermittently. I tested the stator, pulse generator, and coil. THe stator and pulse generator all ohm out with the correct resistance. The coil had correct resistance the 1st time I tested it but now its ready .7 ohms when it should be .4-.6 . The previous owner had problems with the spark so he replaced the coil with a new one and put a used replacement cdi box on. I have a new top end on the way but its useless if I don't have spark lol. My question is what should I replace 1st coil or cdi. Or if you have any other ideas on what could be causing the issue.
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Old 09-06-2011, 05:41 PM
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Join Date: Jul 2011
Last Online: 04-17-2014 07:41 AM
Location: Benton, LA
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Default Coil

If the coil is out of spec, it should be replaced first.

Paw Paw
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