Bike is dead :( - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 20 (permalink) Old 03-05-2010, 10:24 PM Thread Starter
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Bike is dead :(

Hi. I'm having a problem with my bike and I'm hoping someone can give me some direction.

The bike is an 06. I hadn't started it in a couple of months so I hooked up the battery tender and it said the battery was already charged. I started the bike with no problem and ran it for a couple minutes.

Two days later I was going for a ride or so I thought - and the bike was sluggish to turn over and wouldn't start. My voltmeter is attached to the accessory lead in the headlight and showed 8 volts. I hooked up the battery tender and it said the battery was already charged.

Came back a couple days later and the bike is dead. When I turn the key on, I see the lamps (oil, neutral,...) start to glow and then they go out. The bike is silent when I try to start it. The voltmeter shows 0.

But, pulled the seat and checked the battery with a handheld voltmeter and it said 12.7 volts.

The bike is acting like the battery is dead - but the handheld voltmeter and the battery tender say it's charged. The voltmeter connected to the accessory lead shows 0 volts.

So, where do I go from here?

Thanks! Mark
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post #2 of 20 (permalink) Old 03-05-2010, 10:43 PM
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I'd try jumping it from a car battery with the engine not running. If it cranks, it's probably time for a new battery!

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post #3 of 20 (permalink) Old 03-05-2010, 10:47 PM
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several possible things could be going on... could be the ignition switch, bad grounds, bad connections, or the JB is heading south... first I would go through the connections, lean up the battery terminals, and all major ground cables... then I would check into the ignition switch (search the forum for repairing the ignition switch). Then if all that hasn't worked... check voltage at the Junction Box pins with the key on
1
3a
3b
6
7
8
11
13
17

if you need some wiring diagrams, I have most of them in color. just click on link in my sig

Quote:
The bike is acting like the battery is dead - but the handheld voltmeter and the battery tender say it's charged. The voltmeter connected to the accessory lead shows 0 volts.
i didn't see this part... if you have 0 volts at these leads...your main fuse is blown...Check for voltage at pin 1 on JB with key on or off...doesn't matter, it should always have voltage since this is your main battery power wire.

Last edited by slimvulcanrider; 03-05-2010 at 10:56 PM.
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post #4 of 20 (permalink) Old 03-05-2010, 10:47 PM
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If the bike sat for 2 months with no attention, both the battery is bad, and the carbs are probably gummed up. I also have a Battery Tender, and a fairly new MF AGM battery, the Battery Tender will show charged (green light), but after starting it up, and letting it idle for a few minutes, and shutting it off, the Battery Tender will show red for over 1/2 hour, which indicates that starting it and letting it idle for a bit actually slightly drained the battery.

The whole purpose of a Battery Tender is to protect the battery when it is just sitting there. It is not a charger, just a charge maintainer. If I understand you correctly, you did not have the Battery Tender connected to it the whole 2 months it was sitting there. If that is the case, you definitely need a new battery. Make sure you get a MF AGM battery. I use WestCo, but there are several brands available. Then I would drain out the gas from the carbs, remove the fuel lines from the petcock, and fill the carbs full of Seafoam through the fuel lines. Let it soak 24 hours, drain it out, reconnect the fuel lines, and use 2 oz Seafoam per gallon for the next few tankfulls of gas to finish cleaning the carbs out. Sitting is not good for a bike, especially the battery and the carbs. Jerry.

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post #5 of 20 (permalink) Old 03-05-2010, 10:58 PM
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Quote:
If the bike sat for 2 months with no attention, both the battery is bad, and the carbs are probably gummed up.
i doubt that the carbs gummed up in that short of time... I am going on two years with my bike sitting, and no varnish in the carbs... But that is another story.
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post #6 of 20 (permalink) Old 03-06-2010, 12:11 AM
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Quote:
Originally Posted by slimvulcanrider View Post
i doubt that the carbs gummed up in that short of time... I am going on two years with my bike sitting, and no varnish in the carbs... But that is another story.
You give me hope slim, that I won`t have to pull my carbs for a cleaning this spring. How much Seafoam did you have in the tank of gas for the last run before sitting for the almost 2 years?

Gordon

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post #7 of 20 (permalink) Old 03-06-2010, 02:23 AM
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Originally Posted by OlHossCanada View Post
You give me hope slim, that I won`t have to pull my carbs for a cleaning this spring. How much Seafoam did you have in the tank of gas for the last run before sitting for the almost 2 years?
None... but I did run the floats bowls dry before I left... and I filled my tank up with keroseene... This was while i was home on R&R last march... before that, I let the bike sit for 3 months with fuel in the tank and carbs...still no gum.
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post #8 of 20 (permalink) Old 03-06-2010, 08:42 AM
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Try the simple things 1st. pull your battery and take it to a local auto parts store and have them load test it. If it proves good then start your trouble shooting. SIMPLE THINGS FIRST PEOPLE!!!

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post #9 of 20 (permalink) Old 03-06-2010, 10:32 AM
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yep first test your battery, check the fluids to see if its full.
then if the battery is good, check the wires on your bike, are they corroded?
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post #10 of 20 (permalink) Old 03-06-2010, 11:47 AM
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It sounds like a ground issue to me, because you already checked the battery with a volt meter. Take your volt meter and set it to read resistance. place one of your lead to the neg terminal on the batery and the other to a bare metal surface on frame like a bolt or even the engine. if you have less than one ohm resistance your ground from the battery to chassis is good. I had the same issue with a Comaro I was working on. I don't know about the 06 but mine has the ground attaching to the frame behind right cover to the battery box mount and a bullet connector going to the junction box under the left cover. Check all your hot connections from the battery to the starter silenoid and the white red wire to bullet connector. If it is corroded use so 220 grit sand paper to clean them up a bit and be shure to apply dialetric grease to all the connections. Even put it in all you plugs through out the bike. I have some wiring diagrams too but the are not in color. i hope this was helpful.

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