Question about 1979 Harley Davidson XLH 1000 Sportster
Ok to test the coil, remove all wires from the small terminals on the ends. Use a digital volt ohm meter and put the function switch in OHMS, R X 1. Touch one meter lead to each of the small terminals. Your meter should read between 2-3 ohms as the '79 model had electronic ignition.
To further test the coil, reconnect the two white wires to one of the small terminals. On the other side, make a jumper wire. Connect the jumper wire to the other small terminal. Put the plug wires into the towers and put a set of spark plugs in the wires lying on the heads with a good ground. Now, turn the switch one. The terminals with the white wires on it should be "Hot". MOMENTARILY, ground the jumper to the engine and take it back loose. When you take the wire loose, you should see a spark at the plugs. If you do, the coil is good and your problem lies elsewhere.
Posted on Sep 16, 2010
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Posted on Jan 02, 2017
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