front cylinder going out - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 7 (permalink) Old 07-17-2006, 08:44 PM Thread Starter
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Angry front cylinder going out

I have a 97 vn750 that the front cylinder keeps going out on. When I take the plugs out they are gas fowled. after I realized this I thought maybe I needed to adjust the fuel air mixture. I am at about 2 1/4 turns. It ran graet for about 500 miles then the same thing happened. After this I took the carbs out inspected them and gave them a thourough cleaning. ran great again for about 500 miles. same thing happened. Does anyone have any Idea what could be causing my front cylinder to keep periodically running rich and fowling out my plugs??
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post #2 of 7 (permalink) Old 07-17-2006, 09:25 PM
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HAve you checked the spark?
try swaping the front and rear coil and see if the mis moves.
Just a thought, You need air, fuel, and spark. You know you have fuel and air, only thing left is spark.

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post #3 of 7 (permalink) Old 07-18-2006, 12:57 AM Thread Starter
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I switched the coiles the first time and used a multimeter to check the wires going to the fuze box and all cheched out at the time. unless I have a tempermental wire that shortts out every once in a while I odn't know. For the moment it is running again. I drained the carbs and ran some sea foam through it but not that much crud came out with the sea foam. I am still at a loss. EVERYTHING checks out inside the carbs.
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post #4 of 7 (permalink) Old 07-18-2006, 04:57 AM
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What about the fuel enricher on the carb in question? I'm not sure how it works, but it's a possibility

The cylinder is fouled with just gas, right? Not gas and oil...

What brand of plugs? Are they new?

Have you checked the float? Could be just a tad heavy - enough that a piece of crud could get the needle valve to stick just long enough to flood the cylinder.

Next time it does it, pull a plug and see if it is getting spark. Could be the ignition module or even one of the pickup coils down by the stator. Then it wouldn't matter if you swapped the coils.

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post #5 of 7 (permalink) Old 07-18-2006, 08:50 AM Thread Starter
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I am have ngk 6 plugs that have less that 200 miles on them ( i keep changing them when they foul). THe plugs are only Gas fowled. Is there a way to check the float without taking the carbs out again. On this bike that is a pain. How would I check the ignition module??
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post #6 of 7 (permalink) Old 07-18-2006, 09:50 AM
 
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My bro has a 95 and his rear cyl. does the same thing
every now and then and if he shuts the fuel off it
smoothens right out he runs it till it starts to sputter
turns it on and its good for some time.....
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post #7 of 7 (permalink) Old 07-18-2006, 01:44 PM
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Here is a link from our links page. I haven't used it, but I've heard this guy is the carb guru.

http://www.wgcarbs.com/

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