How do you test a Harley Davidson single fire coil?
How to Test a Harley Davidson Ignition Coil
- Turn off the motorcycle. Allow the engine to become cool to the touch before proceeding.
- Disconnect, by hand, the two spark plug wires from the coil.
- Set the ohmmeter to read resistance on the “Rx1” setting.
- Set the ohmmeter to read resistance on the “Rx1000” setting.
Why does my harley run on one cylinder?
A fueling issue with an EFI bike could mean a much more extensive repair than potentially just cleaning the carb and jets. Possible causes for 1 cylinder not firing: Bad or fouled plug. This could be from carbon build up from being way overdue for a plug change, to running too rich, to being oil fouled.
How do you test a Harley Davidson ignition module?
Disconnect both spark plug wires from the spark plugs. Unscrew either one of the spark plugs and stick it back into one of the wire caps. Lay the plug down on the cylinder head or anything grounded. With key on, run your starter for two seconds and look at the end of the plug: a nice, fat blue spark = healthy coil.
How long does it take to test a Harley Davidson ignition coil?
The time necessary to complete this task should be no more than 15 to 20 minutes. Turn off the motorcycle. Allow the engine to become cool to the touch before proceeding. Disconnect, by hand, the two spark plug wires from the coil.
How does a single fire coil work on a Harley Davidson?
Single fire coils designate spark to only the cylinder that is on the compression stroke. Spark is delivered to one cylinder at a time. Harley Davidson Ignition Coils are known to fail. The longevity you get from your coil may depend on usage, demand on the coil or environmental conditions.
Why does my Harley Davidson ignition coil not work?
Sometimes a coil will only give a faulty reading when it is hot from riding. In this instance, it may be necessary to allow the coil to heat up before performing a resistance measurement. Exercise extreme caution when working around a hot motorcycle.
What should the ohms resistance be on a Harley Davidson ignition coil?
The specified ohms resistance for the primary of a 2000 carbureted Softail will not be the same as the primary of a 2005 Ultra. Therefore, it is important to use the correct electrical manual for your ride. When testing your Harley Davidson ignition coil you will be testing ohms resistance.
The time necessary to complete this task should be no more than 15 to 20 minutes. Turn off the motorcycle. Allow the engine to become cool to the touch before proceeding. Disconnect, by hand, the two spark plug wires from the coil.
Single fire coils designate spark to only the cylinder that is on the compression stroke. Spark is delivered to one cylinder at a time. Harley Davidson Ignition Coils are known to fail. The longevity you get from your coil may depend on usage, demand on the coil or environmental conditions.
Sometimes a coil will only give a faulty reading when it is hot from riding. In this instance, it may be necessary to allow the coil to heat up before performing a resistance measurement. Exercise extreme caution when working around a hot motorcycle.
The specified ohms resistance for the primary of a 2000 carbureted Softail will not be the same as the primary of a 2005 Ultra. Therefore, it is important to use the correct electrical manual for your ride. When testing your Harley Davidson ignition coil you will be testing ohms resistance.