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You are watching: How to check a harley twin cam coil

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How to check Dual Fire coils (Pre TwinCam):The ignition coil will need to be unplugged from the wiring harness at the point where the smaller wires connect to the coil. Once those are un-plugged from the coil, use a ohm-meter to test the primary and secondary windings.To test the primary windings, connect the ohm-meter to the points on the coil where the wiring harness connected to the coil. The primary resistance should be about 3 ohms. To test the secondary windings in the coil, put one lead from the ohm-meter to each end of the spark plug wire connections. The secondary winding resistance should be about 13,000 ohms.
"21 LowRider S, Kinda stock"05 Carbed Night Train (Sold) 111 rwhp, 112 rwtq Best 1/4 ET 12.557s Best 1/4 MPH 108.59
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