Question about 1999 kawasaki VN 1500 Vulcan Classic

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Rear Cylinder I have a 1999 vulcan 1500 Single CK40 Carb Rear cylinder has Carbon foul on the plugs but not the front cylinder. Do I have a sticky valve

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They may to be adjusted

Posted on Jun 23, 2009


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I have a 99 Kawasaki Vulcan classic one car bike why would the bike flood the back spark plugs and put gas in my air filter been trying to figure it out but I need help

Hi, Brandon my guess is you have a faulty spark plug or spark plug wire/cable or ignition coil or wiring to the coil is corrupt, check the ohm reading on your plug wires/cables for more information about your question and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
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Firing order for 1500 Vulcan and wich coil go to each plug

buy a work shop manual they are available through bike shops or E-Bay

Oct 07, 2014 | 1999 kawasaki VN 1500 Vulcan Classic

1 Answer

Front cylinder fouls

try cleaning the carbs, changing plugs, and cleaning the fuel tank. If that doesn't work, it might be the piston rings are getting worn out or you cylinder sleeves need a honing.

Jan 15, 2014 | 1994 kawasaki VN 750 Vulcan

1 Answer

I have 1996 Kawasaki Vulcan 1500, How do you adjust the Air/gas mixture? Spits out raw gas on # 2 cylinder at start.

u dont if its injection-computer shud doit by default unless theres issues in the system--is the spark plug tite on that cylinder or does it come out the carb/throttle body--purchase a shop manual for troublshootn

Jan 31, 2011 | 1996 kawasaki VN 1500 Vulcan Classic

1 Answer

1993 Kawasaki 1500 vulcan, has a mis in it when idleing and decelarating, any ideas?

Spark plug caps are one of the problems that most people overlook.Most caps have a 5000 OHM resistance. If they measure higher or lower than 5000 they should be replaced. They can cause you to drop a cylinder , miss at idle, sputtering down the highway.
NGK caps can be purchased for $3-$8 each. Change your plugs and caps at the same time in case one of the plugs has fouled.

Sep 09, 2010 | 1996 kawasaki VN 1500 Vulcan Classic

1 Answer

How to set timing.

There are two timing marks on the crank. One is for the front cyclinder and the other is for the rear. When you line the front cylinder mark, the front cam has two horizontal lines that line up across the top of the head. Look at the cam lobes and make sure the exhaust lobes will be the next valves to open. Turn the crank and do the same for the rear cylinder. Make sur you remove the cam chain tensioners first and leave any slack in the chain on the tensioner side when installing them around the cams.

Jul 04, 2009 | 1998 kawasaki VN 1500 Vulcan Classic...

1 Answer

2003 1500 Vulcan classic fowling Rear Plugs

Perform a leakdown or compression test on the bike before you go to the expense of a top end rebuild. You may find it is something as simple as the rear cylinder not firing properly or perhaps fuel mixture to that cylinder is not correct.

Post a picture of the plugs that are fouling. Are the ignition wires crossed back there? Both plugs may not fire at the same instant, some dual plug setups fire slightly apart (although I can't think of a way that would cause severe fouling like you describe.)

Feb 27, 2009 | 2003 kawasaki VN 1500 Vulcan Classic...

1 Answer


yes your correct that the problem take it to your mechanic and allow them to adjust it for you your carb needs to be synced.

Dec 27, 2008 | 1999 kawasaki VN 1500 Vulcan Classic...

3 Answers

Rear cylinder not firing

The first thing I would do is replace the spark plugs again. You can foul a plug and it will cause you more problems than you can ever imagine. I see you have done all the logical things that I would recommend but I did not see you have replaced the plugs after the 200 miles. You would be surprised at how many times a $2.00 part can cause fits beyond belief.

Dec 07, 2008 | 2000 Harley Davidson XL 1200 C Sportster...

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