Electrical Issue on a 1993 Fatboy
#1
Electrical Issue on a 1993 Fatboy
Riding the bike last night, and all of a sudden I lost all power while at highway speeds. The engine shut down and I lost all lights. The only light tat was staying on was the oil light, but it was real dim. After taking off the dash panel I found a few loose connections on the ignition switch. Got her started back up rode about two miles and she did the same thing. Got her home and I replaced the ignition switch(had a new one laying around). Rode the bike today, after riding about ten or so minutes, the problem reoccured. Iam going to go thru the wiring on the bike. Any Ideas?
#2
#3
Do what your doing. Jiggle connections to see if lights flicker. Sometimes a crimp might cut a wire completely. One thing that has saved me a couple times is my jump wire I told a few people about. Plumbs in a constant 12 volts to the coil and ignition module without turning on the ignition switch.
#5
I8SMK4U, Thanks for the info. So with the jumper wire you described, you are basically removing the switch 12V source for the ignition module and coil and replacing with a constant 12V supply? If this is the case the ignition switch will be mainly used basically for lights? Also how would the bike start without the use of the start button?
#7
I have been diagnosing problems for a while. I bought my bike used and it had a lot of "custom" wiring. I only use the jump wire in emergencies. I don't remove anything. Ya it sucks working on the side of the road but you got a chance to get home. I have a battery tender pigtale on my mike too. To start the bike I have yet another jump wire with an inline switch that one end plugs into the pigtale from battery tender and the other plugs into the starter solinoid where the green wire is. To simple tricks that I keep in my saddle bags. just in case.
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#8
#9
Ok this is embarassing but oh well. So I replaced the main circuit breaker, it needed it the inside was pretty beat. But the problem still happened when I shook a wire harness. So I turned off the light in my garage, and noticed a sparking coming from the ignition coil area. The 12V ignition coil wire was loose, and hitting the engine cylinder, causing the bike to turn off. Repaired the wire and wrapped it in heat shrink. Now its good as new.
Thanks for all the info.
Thanks for all the info.
#10