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1988 harley davidson fxr no spark

1988 harley davidson fxr. was driving battery shorted out.blew headlight and taillight bulbs out and bike died.put in new battery and changed bulbs but have no spark.changed coil and still nothing

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I had same issue 94 for an it fried ignition module. Turn signal cancelater an all headliges an voltage regulator. Come ta find out stater plug was loose overchargeing battery then frying everything twice. So got expensive

Posted on Jan 29, 2019

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  • Harley Davidson Master
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Hi Anonymous, you may have fried your ignition module or pick up timer behind the plate on the cam cover, for a free wiring diagram, please visit the website below. Good luck and have nice day. xlch@mail.com Harley Davidson Wiring Diagrams and Schematics
Harley Davidson Manuals Mark Workshop

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Posted on Jul 27, 2015

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Posted on Jan 02, 2017

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SOURCE: I have a 2005 Harley Davidson engine in a custom

I would check the coil first and see if it needs replaced .If it's new and you still have reciept ,take and get a replacement coil for the one you bought and make sure your wires coming out of everything have power be tracing the system to see if there might be something shorting.

Posted on Apr 27, 2009

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SOURCE: no spark

alrighty, I had the same issue with my bike. It took days of tracing the issue with a volt meter and I discovered an intermittent short that would "fry" my coi. This made the bike not start and when I replaced the coil, because I had removed the old coil and moved the wires the issue disappeared for a short time. It is known that SOMETIMES when the coil is mounted the two wiresthat go to the coil somhow get stretched. This over time cause an intermittent short and the coil is rendered "dead". The Fix: 1.get a replacement coil. 2.you need 6 inches of #18 wire 3. two aluminum wire splicers and two aluminum circle fittings for the coil posts. 4.take off the old coil. 5.cut back the wires that go to the coil about an inch. 6. using the aluminum splicers splice the wires making them about 3 inches longer. 7.splice in the aluminum circle fittings. 8.mount the new coil. 9. fire the bike up. Enjoy riding.

Posted on Jun 06, 2009

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SOURCE: Motorcycle wont start

Check your spark plugs, they are quite fragile & yoy may have a crack in the ceramics. Replacement is recommended.

Posted on Aug 31, 2009

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SOURCE: how do i time a 1986 harley fxr?put new timing

properly, remove inspection cover on left side case. the wheel is marked. TDC and the proper just before TDC I believe. with a timing light... adjust plate till you see the proper timing mark. IF IT IS TOTALLY STOCK ...off hand, put the plate in the center of its adjustment... it will run there... you can adjust it slightly in either direction. usually it is slightly clockwise from center. when it starts right.. ride it. if it diesels.. back it off a little. it works.

Posted on Sep 11, 2009

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wd4ity
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SOURCE: 1999 police harley davidson rewired bike with new harnmess power

If you have power going to the coil but no spark, you've got something wrong with the "triggering" circuit of you ignition system.

One other thing, if your engine is the TC88 engine, (first year of production for some models) it probably has a "compression sensor" on it. If you have no compression, you will not have any spark. If you have your plugs out of the engine, you have no compression. So, screw a set of plugs into the engine, leave another set in the wires and grounded against the engine to test the spark.

The "triggering system" uses the signal from the ignition timing sensor that is located in the "nose cone" of the engine. Check this wiring from the ignition unit's "Black box" to the sensor. I seem to remember a plug that plugs in for this unit.

I'm afraid that this is about the only help I can give you with a stock ignition unit as I usually work with either earlier igniton systems or aftermarket units. I have very little experience with "stock" Harley units.

Posted on Dec 20, 2009

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I have a 1988 harley davidson fxr superglide with a 1340 cc engine. It is equipped with a screaming eagle ignition control module. bike will crank but does not start. how can I know if it is in fact t


If you have the old ignition module, try putting that back in and go from there. I would also check my fuses. and coil and see if you have spark.

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Ridding my 94 FXR Harley and all of a sudden it stopped running, leaving me stranded on the side of the road. Everything was going normal untill it died and when it died it started to sputter as if it were...


The first thing I'd suspect is the battery. I've seen batteries break battery posts, suffer from internal shorts, and all sorts of problems. You FXR, as well as the Softail bikes, is very tough on batteries. This is due to the fact that the battery is in such close proximity of the hot oil tank subjecting the battery to higher temperatures than other model bikes. Vibration is a contributing factor in the Evolution and earlier bikes as well even if they do have rubber mounted engines. I'd take the battery out and take it to an automotive parts store and ask them if they can "load test" it for you. If the battery test good, you need to check to see if the main circuit breaker is tripping indicating a short circuit somewhere.

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Hello, I have a 94 Harley FXR. I went for a bike ride today and as I was riding I noticed a noise that would come and go coming from the front end. When I got home the engine died on me and now it wont...


Check for battery voltage going to the primary side of the coil when you have the switch turned on. If you don't have any voltage, you won't have any spark either. You may have to disconnect the small wires to check for the voltage.

You can test the coil using an ohm meter. Disconnect the small wires and put your meter's function switch in R X 1 position. Touch the meter leads to each of the primary coil winding posts. You should read between 2-3 ohms.

As for the noise from the front end, I don't have any idea. You may want to pull the headlamp and look inside the there. I think the FXR is like a Sportster in the fact that most of the wiring is in the headlight assembly.

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lotta possibilities....likely something vibrated loose. i'd start with something simple. after u check electrical connections and fuses,,,,, is the ignition module black lead secured to the frame ? all coil wires secure ? Pull the key ignition....check connections/ crossed? secure ?

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