reanimating my 2k - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Carbs and Fuel System
From the gas tank to the carbs
All fuel system discussion

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post #1 of 29 (permalink) Old 01-03-2010, 01:09 AM Thread Starter
rek
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reanimating my 2k

scenario:

I'm a complete mechanic noob, but I'm going to fix this damned motorcycle.

Bikes been sitting since July under a tarp in wet ole tallahassee in wet ole florida, and now I'm back on my feet, I wanna get back on my wheels. I have Drained the gas, then refilled the tank and mixed in a pint of seafoam, hearing it was the stuff of miracles. I've put in new plugs, new MF battery, and sprayed some starting fluid into the airboxes. No go. It kinda backfired once when I tried to jump it, and now it will usually just barely try to turn over, then the starter will start spinning, and then the tachometer will wig out and roll up to 6k. Most days I just cover her back with the tarp and drink away my tears.

But I've spent the past 4 hours going through this amazing amazing forum and wholeheartedly believe tomorrow is a new day. I'm going to poke a hole in the air tube on the carb and spit some more starter fluid in there, and check the petcocks to make sure gas is getting through, then start that beast. If I get a no go, I'm going to check the plugs for gas or no gas and decide what the problem is from there. If it's battery, I'm gonna rip into the r/r and clean the **** out of it, and if it's fuel it looks like I'm going into the carb, which is new and unfamiliar territory for me.

I humble myself before ye masters of Vulcanry, live long and prosper:
Rek

-----------
Makeshift Signature:
"Of all the Olympean Gods, Vulcan was the most busted looking. But he was the one married to Aphrodite."

I got a gunmetal grey 2k vn750 with K&N filters and cobra pipes. Previous owner rejetted the carbs, but I don't know what to, but I put a ding in the gas tank ...for character.
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post #2 of 29 (permalink) Old 01-03-2010, 02:13 AM
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It sounds like the new MF battery is not fully charged. Be sure you have at least 13.2 volts to begin.

I`m not sure why you would poke a hole in a carb tube. It seems a good way to start an intake air leak to me. Stick with spraying a little starting fluid on the filter element, (Unless the ether dissolves the foam??, not sure about that), or into the airbox. Then you get starting fluid into both cylinders, not just one.

Gordon

1991 VN 750 -"Cosmic Lady" or "Bad Girl"?
Purchased May 16, 2008
Approx.19,300km (12,000 miles)

H-D windshield
Relocated R/R
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July 13, 2016, Riding on the DARKSIDE now, Classic Radial 165/80-15


TOP TEN THINGS A NEW RIDER/OWNER SHOULD DO. Click on link.
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post #3 of 29 (permalink) Old 01-03-2010, 09:22 AM
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x2 on Old Hoss' point. Also, just for kicks, you'll probably want to drain the carbs and at least shoot some Gumout carb cleaner up into the float bowls (well, shoot it up there until it's coming out of the vent tubes). Let it sit, drain it, do it again. Not saying that that's the problem, but 6 months of the carbs sitting in damp, possibly with old fuel in them, is going to have left them gummy and sticky. When you get a chance, pull the carbs and give them a thorough cleaning.

C
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post #4 of 29 (permalink) Old 01-03-2010, 09:27 AM
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I am not sure how you are trying to "jump" the bike, but if you try to jump from a running car or truck you run the risk of frying the charging system.

Brad
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post #5 of 29 (permalink) Old 01-03-2010, 12:04 PM
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I would jump it off of a car battery. Do as Cindy said drain carbs, spray gum out carb cleaner of the sort into the carbs. I would also add b-12 chem tool to the fuel along with the seafoam.
Hope you get it running again.
As long as you use 12 volt system to jump off of you will be okay.
I always use carb cleaner as a starter fluid.

02 honda sabre 1100

Last edited by niterider; 01-03-2010 at 12:07 PM.
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post #6 of 29 (permalink) Old 01-03-2010, 12:38 PM Thread Starter
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really? that's crazy. there was a few months where I carried jumper cables in the saddlebag because it was the only way to get around. I'm glad nothing bad happened on account of that :-x

I got a late start today, but I'm gonna tinker for another 5 and half hours, till the sun goes down. I tried starting it today, and just got a buzzing sound. Then put jumper cables on from my unstarted car and the engine tried to turn over, but there was no spark. I'm going to get the battery tested at advanced auto while I pick up some:
gum out carb cleaner
wire brushes
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post #7 of 29 (permalink) Old 01-03-2010, 12:47 PM
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Quote:
Originally Posted by rek View Post
really? that's crazy. there was a few months where I carried jumper cables in the saddlebag because it was the only way to get around. I'm glad nothing bad happened on account of that :-x

I got a late start today, but I'm gonna tinker for another 5 and half hours, till the sun goes down. I tried starting it today, and just got a buzzing sound. Then put jumper cables on from my unstarted car and the engine tried to turn over, but there was no spark. I'm going to get the battery tested at advanced auto while I pick up some:
gum out carb cleaner
wire brushes
New plugs will not hurt.

02 honda sabre 1100
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post #8 of 29 (permalink) Old 01-03-2010, 01:14 PM Thread Starter
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i replaced the plugs about 2 weeks ago, they are oiled but are otherwise unblackened by ignition. they are as shiny as the day i got them.
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post #9 of 29 (permalink) Old 01-03-2010, 01:29 PM
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The buzzing sound is curious. Make sure your ground connections (particularly on the battery) and clean and tight.

C
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post #10 of 29 (permalink) Old 01-03-2010, 01:29 PM
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They will work, just dry them off if needed.

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