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buckydr1

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Posts: 8
Reply with quote  #1 
how do i check wire harness for bad ground. I bought one of them cheap wire harnesses off of amazon, it came with ignition coil, cdi, ignition key, push button start, it came with everything.  i unplug my wire harness and connect the one im talking about, and i got spark.  
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bigredmark

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Reply with quote  #2 
I use a multi meter and check the resistance of the ground wire. If the ground is good the resistance should be close to zero ohms. I have an 85 250es on the lift and I checked the resistance from the negative battery terminal to where it is grounded to the engine and got .2 ohms
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