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  #1  
Old 09-25-2014, 03:01 PM
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Default 1993 YZ125 HELP!! no spark issues

I was wondering if anyone had any tips for an issue with no spark. I have a 93 yz 125 I bought for cheap and have been trying to fix it up for a friend.

I have replaced the primary, secondary, and pickup coils and still nothing, please help!
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Old 09-25-2014, 03:14 PM
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a manual will help click here
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Old 09-29-2014, 10:08 AM
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Where all the coils Known working units?

Have you disconnected the kill button?

I would look for a ground or broken wire.
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Old 09-29-2014, 04:21 PM
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I tested all of the coils and they all read the right ohms. and have unhooked he kill switch. think it might be a bad cdi unit as well. not sure if their is a way to test them

still haven't found a good online manual so I will have to kick down for the Clymer from amazon

just noticed a crack in my rotor that is causing it to sit uneven on the crank and rub on the side of the lower coil so now I suspect I will need to buy one of those before I further the investigation of the problem


thanks for the advice! ill update once I get some parts
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Old 10-01-2014, 07:45 PM
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Iv'e got Clymer for these bikes. PM me and I can try and help. Ive been doing a rebuild of a 1992 wr250z and it had a weird no spark issue that I resolved.

Better to find the problem bit, before you throw money at parts man



Will
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Old 10-01-2014, 08:09 PM
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"just noticed a crack in my rotor that is causing it to sit uneven on the crank and rub on the side of the lower coil so now I suspect I will need to buy one of those before I further the investigation of the problem"
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This needs to be fixed as it could be the total source of the problem.

Paw Paw
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