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Discussion Starter · #1 ·
My daughter was riding her dirt bike last weak. When we tried to start it this week it wouldn't start. I pulled the plug turned it over and no spark. I checked the coil and had 5 ohm primary and 12k through the secondary so considered it ok. I checked the shut off button and it checked out ok. I then decided to check the plug again... I found a tiny spark from the center electrode to the engine fin. But not strong enough to spark to the side electrode??? Any ideas?
 

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Moderator - Loves All Motorcycles
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Next thing I'd check is the CDI unit. It's not an uncommon part to go bad on Chinese bikes. Also because I'm me and Chinese bike parts are cheap, a new plug and coil (often $10 or less on Amazon) can't hurt.
 

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Moderator - Loves All Motorcycles
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Not without having another on hand. Sometimes they'll be visibly damaged, sometimes not.
 
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