Help! Bike won't start - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 16 (permalink) Old 07-22-2010, 12:52 PM Thread Starter
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Help! Bike won't start

Hello everyone, I'm new to this forum and new to motorcycling. I have owned my 2001 vulcan 750 for about a month now. I've put close to 500 miles on her, changed her oil, washed and waxed her, made room in the garage, tried to do everything right.

Then, last night I was going to go on my first ride in the dark to my buddy's house. Started off fine, but, heading up a hill in 4th gear I noticed that the engine seemed to stop responding to any throttle that I was giving. I slowed down and stalled out.

After that, I could not get her started again. At first I thought that it might be something as stupid as having the petcock off, but no, that wasn't it. I had to push about a mile home (thank god for the 4-ways and not being too far when the problem arose). I let it sit overnight and the engine still won't turn over.

I am looking for any suggestions from you guys for a possible cause.

Thank you guys in advance, I've seen you help others in the past and hope that I can benefit from the community as well.
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post #2 of 16 (permalink) Old 07-22-2010, 01:05 PM
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By turning over I presume that you mean that it will not start. How old is the battery and is it a AGM maintenance free battery? Have you checked the fluid level if it is a lead acid battery? You need to get your battery load checked, and also check out the charging system on the bike with a volt meter. Check all your connections,especially the battery connections they come loose a lot of times, or you may need to clean them up so they make a good connection. This is only a few things you need to check.

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post #3 of 16 (permalink) Old 07-22-2010, 01:26 PM Thread Starter
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Sorry about that, I should have been more clear. By turn over I mean that there seems to be no combustion occuring. The starter sounds like it always has. The lights are bright on both high and low beam, the instrumentation still lights up bright. The previous owner said that they changed the battery this year, and I have the reciept from them. So I'm guessing, (but aren't sure) that the battery is charged. I won't be able to be certain till I can actually work on the bike next week (busy), but any suggestions are greatly appreciated.
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post #4 of 16 (permalink) Old 07-22-2010, 02:17 PM
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Here`s a link to a pretty comprehensive guide for working on a bike. Check sections 12, 14 and 66.
http://www.dansmc.com/MC_repaircourse.htm

In your case the first thing I would do is check battery voltage and charge it if it is low.

Got good charge,-pull all 4 plugs, and check for gas on plug or in cylinder. Reinstall in caps, ground electrodes against engine case and crank engine over.
Watch for nice fat blue spark at each plug.

No spark or weak spark- check connections.
Got good spark,- time to check for fuel flow. Poor flow could be blocked screen/filter around run and reserve pick-up tubes in tank.

Petcock is vacuum operated by middle nipple. Check vacuum and fuel hoses for cracks and tight connections.

Let us know what you find.

Gordon

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Last edited by OlHossCanada; 07-22-2010 at 02:32 PM.
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post #5 of 16 (permalink) Old 07-22-2010, 02:19 PM
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Sounds like it may be starved for fuel. Is the petcock lever at the 6 o'clock position? Is the red kill switch in the RUN position? Have you tried using the choke (fuel enrichner) when starting? Try to start it, and check a plug on each cylinder to see if it's wet. Iridium plugs help many, but will not solve all, starting issues. Ditto the extra cranking amps of a MF/AGM battery.

I'm keepin' all the left over parts. I'm gonna use 'em to build another bike!
_____________________________________________
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1989 VN750 acquired December, 2008, 6,711 miles
Currently 23,298 miles

Old Blue
2001 Honda CMX250 Rebel acquired July, 2008

1987 VN750 project bike, acquired August, 2009, 33,000 miles and balancer sticking out of the case, currently awaiting attention and parts

Last edited by flitecontrol; 07-22-2010 at 03:11 PM.
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post #6 of 16 (permalink) Old 07-22-2010, 02:31 PM
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I was sure that I posted here!! Some one ate my post. I can't find anywhere else.
All I had said was to make sure you have fuel.

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post #7 of 16 (permalink) Old 07-22-2010, 03:24 PM
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Quote:
Originally Posted by niterider View Post
I was sure that I posted here!! Some one ate my post. I can't find anywhere else.
All I had said was to make sure you have fuel.
I didn't steal your post, but I was thinking the same thing. Any chance you just bottomed out the fuel and/or reserve?

Fergy
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post #8 of 16 (permalink) Old 07-22-2010, 03:57 PM Thread Starter
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Quote:
Originally Posted by fergy View Post
I didn't steal your post, but I was thinking the same thing. Any chance you just bottomed out the fuel and/or reserve?
Still have fuel, close to a full tank.

Thanks all for the suggestions, I'll let you know when I've tried it all. Further suggestions are welcome.
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post #9 of 16 (permalink) Old 07-22-2010, 04:02 PM
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if you dont have a charger yet.. get one...get an AGM battery...but in the meantime...pull the battery out of your car...use jumper cables (car not running ofcourse) and try and start your bike.. if it starts.. its your battery.. if it still dosnt.. well then you have a fule issue or some other elcetrical issue and we can go from there...eleminate the easy stuff first.
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post #10 of 16 (permalink) Old 07-22-2010, 07:05 PM
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Don't have to pull the car battery, just dont have the car running when you hook it up.

I'm keepin' all the left over parts. I'm gonna use 'em to build another bike!
_____________________________________________
"Black Beauty"
1989 VN750 acquired December, 2008, 6,711 miles
Currently 23,298 miles

Old Blue
2001 Honda CMX250 Rebel acquired July, 2008

1987 VN750 project bike, acquired August, 2009, 33,000 miles and balancer sticking out of the case, currently awaiting attention and parts
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