my custom keeps blowing ign and ecu fuses - Kawasaki Vulcan Forum : Vulcan Forums
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post #1 of 2 (permalink) Old 06-09-2019, 09:49 AM Thread Starter
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Join Date: Jun 2019
Posts: 11
my custom keeps blowing ign and ecu fuses

I have a 2007 vulcan 900 custom with just over 22k miles on it. I picked it up from my neighbor for a killer deal so i cant complain too much about the headaches. He bought it to learn how to ride and rode it maybe 5 times before parking it in his garage and letting it sit for a little over a year before i bought it. I was able to take it on a few short rides and one longer ride that was a little over 100 miles round trip. As soon as i pulled into the neighborhood the electronics all cut out for a moment and started choking and sputtering badly but didn't shut off. I was able to make it into the driveway and shut it off. When i turned the killswitch back on, only the side lights and backlighting of the speedo would turn on. After further investigation i found the IGN and ECU fuses were both blown. I replaced them and when i turned the key on the ECU fuse immediately blew again, and once i turned the killswitch to run it blew the IGN fuse again. I looked the bike up and down and inspected wires and didn't find any that were shorted or rubbing on the frame. Im at a complete loss at this point and from other posts on here, i'm guessing it could be the ECU has gone bad. If anyone has any advice or how i can test the ECU i'm all ears. Also i bought a new battery because the other one was old so i thought it could have been the battery at first not producing enough amps.

I can fix airplanes, but at a complete loss on motorcycles.
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post #2 of 2 (permalink) Old 06-10-2019, 01:57 PM
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Join Date: Nov 2016
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Year/Make/Model: 2008 V900 Custom
Displacement/CC's: 900
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Here is the wiring diagram to study to get started.

ECU reprogrammed by Ivan
Cobra Speedster Pipes
Barons BAK intake
Progressive springs in the forks.
Kuryakn ISO Grips
Mustang Studded Wide Touring Seat with Driver Backrest
OEM Passenger Backrest.
Added Grease fittings to Stem, Tie Rod, and Swingarm.
Cobra Crash Bar
Red LED lights by PO
170/80 Commander II in the rear
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