Question about Harley Davidson Motorcycles
Cant get spark with new plugs wires and battery ?
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Posted on Jan 02, 2017
Hi and welcome to FixYa,
The voltage on the green wire must be pulsating when cranking/starting the bike, not steady. Confirm by similarly testing the voltage on the black wire on the left ignition coil. If the green still reads a constant voltage, then the CDI is faulty; to be more specific, most likely that the switching tansistor inside the CDI that drives the right ignition coil has shorted.
Good luck and thank you for asking FixYa.
Posted on Jul 10, 2009
Posted on Aug 14, 2009
SOURCE: I have a 92 FXR.
The ing also has to work well it easyer to check coil ohm it w/ meter primary & secondary.... I have found good help at harleytalking.com they have helped me... good luck ';';'
Posted on May 01, 2011
SOURCE: Have 93 fxr. Starter turns
Take your battery out and have it load tested. It sounds like you have one or more cells shorting out under a load. A 12 volt battery is made up of six 2 volt cells. The output voltage and current delivery of a battery with shorted cells in it depends on how many cells are shorted and where they are located within the battery. This is the most obvious thing causing the problem. If the starter is drawing the battery down that low, it must be drawing a tremendous amount of current and it would probably be burning the battery cables with that large of a current draw. If you have 300km on a top end job with no problems, I doubt you have a problem with that. A problem in that area would have shown up well before now. Although, a fresh top end will put more strain on the starter and battery due to the increase in compression. Check the battery first.
Posted on Jun 22, 2011
SOURCE: cant get a spark
The only other thing you have to look is how the coil is charged up. Is the battery good? Is there 12v on the power side of the coil? Is the coil grounded? Are points or electronic ignition time in use? If mechanical points are in use then there is a capacitor near the points that can go bad. If there are points in use, do they open and close properly when the engine is turning over? Is the gap correct for the points? If this is an electronic controlled timing system, then check the cam or crank sensor for function and gap. That is checked with a volt ohm meter. I'm unfamiliar with your particular bike so I apologize that I can't be more specific.
Posted on Aug 03, 2012
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