Solved: Bike Shutting off Unexpectedly While Riding - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 5 (permalink) Old 08-10-2014, 02:42 PM Thread Starter
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Solved: Bike Shutting off Unexpectedly While Riding

Hey all,

I thought I would just post a quick write-up of an issue I have had off and on that got pretty bad a few weeks ago. I kept having issues with my bike shutting off in the middle of riding, it didn't matter how fast or what I was doing. I wold simply be riding along and the engine would cut out, no stutter or anything. In the beginning I was able to just hit the starter button while still moving, the bike would back-fire and start right up. Later however, I had to bring it to a complete stop, turn the whole thing off and restart her. That was when I decided I had to spend some serious time and look at the electrical circuits. This all happened while I was in desperate need of my bike, with no other ride.

I looked at all my connections, trimming the wires down to get some fresh wire at the connections (with the help of a friend of a friend who runs his own little garage). We couldn't find any issues with the electronics. The problem kept occurring sporadically and I finally decided it was time to start putting new parts in.

The first part was the most obvious and luckily turned out to be the issue! Switched out the old ignition switch for a new one and have been riding for almost 500 miles without an issue. Took the old switch apart again and still can't find what the problem was...but I guess these things happen with an older bike.

Just glad its over and I can finally relax and enjoy the ride again! Anyway just wanted to let everyone know, incase others have this issue.

- Sjaak

Last edited by chunkycheese; 08-10-2014 at 02:49 PM.
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post #2 of 5 (permalink) Old 08-10-2014, 02:44 PM
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Good deal. I'll store this knowledge away for potential future use.
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post #3 of 5 (permalink) Old 08-10-2014, 03:54 PM
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Thanks for posting your results. There is nothing more frustrating than for someone to post a problem, people give advise, and they never post back the results. I have read many a post all the way through only to get no satisfaction at the end. Kinda like a big build-up with no happy ending! LOL
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post #4 of 5 (permalink) Old 08-10-2014, 05:08 PM
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I believe there may be a "sticky" on rebuilding the ignition switch or at least cleaning up the contacts. I have heard of this exact problem from several members so it is something all should be aware of. When time and funds permit I would rebuild the original switch so you have a backup or even something you could sell to someone else and recoup your expenses and a little bit for your trouble. Any old parts may just be what someone else needs in a pinch. Chrome can always be painted over if too far gone and a small ding could be better than what some other person has at present.

As mentioned, thanks for posting your final results. Your diagnosis could save time and expense for others by giving them a good starting point for the same exact problem.

and always remember, "Ride until you rot!"
**Really not sure if the Big "C" is back right now
but having to face the fact that this is a lifetime routine
going forward. Five operations done and it still continues.

Vulcan 2000
New ride: 2009 Victory Vision Arlen Ness Signature Series
4507 miles

Last edited by Vulcan2000; 08-10-2014 at 05:10 PM.
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post #5 of 5 (permalink) Old 08-10-2014, 08:24 PM
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There is a sticky on rebuilding the ignition switch, I had the same problem, nothing like cruising down the highway and just going dead. I also found a loose bullet connector, after cleaning switch and repairing bullet connector I have had no problems since. There are also some really good pictures somebody posted.
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cut-out , electrical , ignition switch , shutoff

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