Bike died on my way home this morning. - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 11 (permalink) Old 05-11-2011, 07:02 PM Thread Starter
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Bike died on my way home this morning.

Hi guys. I just bought a '02 Vulcan 750 a couple weeks ago. This morning, on my way home from work, the bike just died while I was waiting to turn. I pulled over and waited about 10 mins then it started up, but I had to keep working the throttle or it would die again. I finally got it home that way. Before this happened, I was having an issue where the bike wouldn't start back up after it was warmed up. It seemed like it was flooded...I'd have to wait about 15 mins and then it would fire right up.

So, I thought my first issue might be the POOGS issue so I am trying that fix now. My second issue I thought would be a problem with the carbs. I poured some Sea Foam into the tank after the last fill-up and I am hoping that will do the trick. If not, I guess I'll be rebuilding the carbs. I am also going to be installing some Iridium plugs tomorrow.

The PO said the bike sat for about a year and a half before I bought it. He also said that the entire electrical system was replaced, which I have the receipt for.

I know this sounds like a lot of the other threads I have read already. I was just hoping to get some feedback from you guys on my issues. Thanks for the help!!

2002 Vulcan 750
Iridium plugs
AGM Battery
More upgrades to come!
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post #2 of 11 (permalink) Old 05-11-2011, 07:17 PM
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I would check the battery and charging system as my first step. These are weak areas for the vulcans, and sound like the symptoms you experienced, although they can have many causes.
Keep us posted.
Bronson

2005 VN 750
MF Battery
Plexistar windshield
.040 pilot jets.
Splines lubed 1955 mi.
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Iridium plugs
Reset pickup coil gaps.
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post #3 of 11 (permalink) Old 05-11-2011, 08:47 PM
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+1 to Bronson's post.

From the forums here I have gathered that unless you've got a solid battery, the stock/non iridium plugs cause the same behavior you describe.

1995 VN750 - 10K
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post #4 of 11 (permalink) Old 05-12-2011, 12:37 AM Thread Starter
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The battery, regulator, and stator were all replaced along with the entire electrical system by the PO. I have receipts confirming this. Looks like it was all done in 2009. Do you think the battery could still be the problem if it isn't the one recommended here on the forum (I forget the name of it)?

The plugs have never been replaced as far as I can tell. I am installing a set of Iridium's tomorrow.

Thanks for the quick replies!

2002 Vulcan 750
Iridium plugs
AGM Battery
More upgrades to come!
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post #5 of 11 (permalink) Old 05-12-2011, 09:27 AM
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I don't think I would pull the carbs until I inspected/performed a few things.
There are more detailed forum threads to address each procedure. Check for sticky's and search 'The Verses".

1. Definately go through the tank vent system to eliminate possibility of POOGS.
2. Definately do replace the copper spark plugs with the iridiums.
3. Check to insure the battery charging system is functioning properly.
4. Check to insure that the carburator float bowl vent tube is not kinked, is clear, and is secured in the back of the right filter housing (ear). Also insure that the hose is not bottomed out. It is a good idea to cut the end of the hose at a 45 degree angle to insure hose-to-atmospheric pressure is not blocked.
5. Check to insure there is no fuel flow issue with the petcock during Idle (sufficient vacuum to open the petcock safety valve). Make sure your idle rpm is set to approx. 1100 rpm.
6. Do make the ignition pickup mod to .020" clearance.
7. Run the carburator mixture screws in all the way to seat them (gently), then run them both back out to 2.5 turns. This might clear some junk from the needle seats.
8. Assemble the 'frugal' carb sync tool, and ensure proper carb sync.
9. Check the fuel line routing to ensure no kinks or 'loops' in hose.

Let us know how it all turns out ... k?


~~C8> Ratt
________________________
'91 VN750 - Cosmic Splendor/Candy Wine - 10k mi.
Done: Coastered, .020 ign., Iridiums, VM, Plexistar II, MCCT's
Next: LED's
Will Do: MOSFET, Horns, Shave(maybe)
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post #6 of 11 (permalink) Old 05-12-2011, 10:32 AM Thread Starter
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I just pulled my plugs out and the 2 in the front cylinder were soaked in fuel. Does this mean I definitely need to rebuild the carb? Keep in mind that the bike has been sitting for 24 hours. Or could I just try spraying some Sea Foam in there?

2002 Vulcan 750
Iridium plugs
AGM Battery
More upgrades to come!
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post #7 of 11 (permalink) Old 05-12-2011, 11:43 AM
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Wet plugs mean no or incomplete combustion, which could be caused by one of several things. Check to see if you are gatting spark to those plugs before doing anything else.

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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post #8 of 11 (permalink) Old 05-13-2011, 10:49 PM Thread Starter
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Finished going through the POOGS procedure. Installed the iridium plugs yesterday and rode it to work tonight. Pulled 1 plug from the front cylinder and it was dry. The bike seems to run a lot better. So, maybe I just had some bad plugs. I am going to replace the battery with a MF battery. I will also do the ignition pick up mod. I hope that takes care of all of it!

2002 Vulcan 750
Iridium plugs
AGM Battery
More upgrades to come!
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post #9 of 11 (permalink) Old 05-13-2011, 11:31 PM
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my battery cables get gunked up very quick. I would check those too.

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post #10 of 11 (permalink) Old 05-19-2011, 12:39 AM Thread Starter
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Installed my AGM battery today. The battery cables looked good. I haven't had any more issues since replacing the plugs and fixing the POOGS. Pick up coil mod will be done next week...I hope.

2002 Vulcan 750
Iridium plugs
AGM Battery
More upgrades to come!
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