Stopping the Engine - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 21 (permalink) Old 11-18-2013, 03:38 PM Thread Starter
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Stopping the Engine

OK, so this may seem kind of silly with something as simple as stopping the motor, but I've been doing some experimentation lately since the temps have dropped and I've run into starting problems. I have a MF battery as well as iridium plugs, just to get that out of the way. Here's the deal; I like to keep the bike in gear when I park it just as a safety precaution. The easiest way to do that after I back in is to kick into gear and hit the kill switch to stop the motor. The problem is that she doesn't like to start back up unless she sits for several hours after I use the kill switch. If I try to restart the engine right away (such as after topping off at the gas station), or even within as much as 10 or 20 minutes, it'll struggle to start and often results in a loud backfire. The colder the temps, the worse this is.

The obvious alternative is to use the key, which works but is really awkward with heavy gloves on, and I have to keep my left hand on the clutch because I can't put it into gear from neutral without the engine running. This method is a pain but it leads to a clean restart every time.

Here's the method that I like but I want to be sure its kosher. With the bike in gear and the clutch pulled in, I lower the kickstand and that safety switch shuts off the engine. Alternatively, I could lower the kickstand in neutral, pull on the clutch, and hit the gearshift pedal, thus kicking into gear and shutting down the engine through the same safety switch.

Every method leads to a clean restart every time except the kill switch. What I really want to know is whether either of the kickstand methods I outlined might do any cumulative damage to our sensitive electronics, engine function, etc. I can't imagine the kickstand safety was designed with everyday use in mind, and that's what's got me worried. Anybody else do this? Anyone know of a good reason why this is a bad idea, or am I good to go with this method?
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post #2 of 21 (permalink) Old 11-18-2013, 05:50 PM
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Mmmmm, I thought that if you have the clutch pulled in, put the bike in gear and lower the kickstand that the motor only goes off if you let out the clutch lever.
I know other bikes will do as you say but I don't remember the Vulcan working that way.

That aside, I try to use the ignition switch as much as I can, but on occasion have (both in my FJR and on my Bonneville) killed the motor by lowering the kickstand with it in gear.(clutch pulled in)

Don't think it hurts anything really, but it sounds like you have an electrical problem as the bike should start easily no matter how you kill the engine.

I believe the kill switch and the sidestand switch kill the motor the exact same way, but I'd have to ask for another member to answer this.

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post #3 of 21 (permalink) Old 11-18-2013, 05:55 PM
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You might want to take the controls apart and thoroughly clean that kill switch. Clean all the connections as well. It sounds like its not opening up properly if it's struggling to start. I've seen a dirty switch cause similar problems.

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post #4 of 21 (permalink) Old 11-18-2013, 06:46 PM Thread Starter
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I had that control post disassembled a few months ago to replace some frayed throttle cables, I suppose its possible I may have accidentally fouled the connections with grease or dirt while I was in there.
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post #5 of 21 (permalink) Old 11-18-2013, 06:53 PM
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Try the warm restarts without touching the throttle. Mine will fire in half a turn this way, but backfires or doesn't start if I crack the throttle.

I use the kill switch quite a bit with no obvious problems.

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post #6 of 21 (permalink) Old 11-18-2013, 07:48 PM
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Using the kill switch, the side stand switch, or the ignition switch shouldn't make a difference on restarts. My vote is that the KILL switch is faulty.

Had the bike been hard to start in all the conditions mentioned above, I would have suggested the pickup coil mod to assist the HOT start issue.
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post #7 of 21 (permalink) Old 11-18-2013, 08:21 PM
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I use the kill switch to kill my bike more often than the ign key, it should not be a problem, I am with KC, make sure that switch is not faulty.

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post #8 of 21 (permalink) Old 11-18-2013, 08:34 PM
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Quote:
Originally Posted by bluguitar89 View Post
I had that control post disassembled a few months ago to replace some frayed throttle cables, I suppose its possible I may have accidentally fouled the connections with grease or dirt while I was in there.
Sounds like the most logical place to start hunting down the problem. I use the kill switch more times than not and have never had a problem so far.

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going forward. Five operations done and it still continues.

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post #9 of 21 (permalink) Old 11-18-2013, 08:58 PM
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Quote:
I can't put it into gear from neutral without the engine running.
You should be able to hit 1st gear, but not 2nd.

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post #10 of 21 (permalink) Old 11-18-2013, 09:42 PM
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Quote:
Originally Posted by Spockster View Post
Try the warm restarts without touching the throttle. Mine will fire in half a turn this way, but backfires or doesn't start if I crack the throttle.

I use the kill switch quite a bit with no obvious problems.
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'86 VN750 13,700 mi -Stock
-Purchased 2008 w/8800mi
Replaced ALL Cables . Kuryakyn LED Voltmeter
SilverStar Ultra 9003/HB2 H4 Headlamp, Jardine Fwd Controls,
Iridiums DPR7EIX-9 & Wires, Tuxedo Mod, Coil Mod, P/U Sensor Mod, Fork Seals,
Splines Lubed - 11/4/2012 - MF AGM Battery
Additional Flashing LED Brake Light on Trunk
Dampers went out @ 13+K !
After TOC MCCT's..... so amazingly quiet I discovered a rattling heat shield on my stock exhaust !
...have a vulcan good day!
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