Carb issues..... - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Carbs and Fuel System
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post #1 of 4 (permalink) Old 06-16-2012, 09:58 PM Thread Starter
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Carb issues.....

Hi all...well after taking carbs off and on 4 times, I was able to get my "86 vulcan750 to finally start by putting on choke(first time it has made a differance) and just hitting start, fires up and idles(full choke)1000 rpm rock steady...If I wait a bit, and then try to move accelerator it will stall out.....I cleaned all carb jets and passageways quite well. by the way. mixture at 2 1/2 turns as a starting point....hope someone has a suggestion.
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post #2 of 4 (permalink) Old 06-17-2012, 12:40 AM
Crap, I WAS in 5th gear.
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Did you check your float level? It's easy to do. At idle and low throttle, you are running on the pilot jet only. You might check your petcock, and make sure there are no air leaks.
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post #3 of 4 (permalink) Old 06-17-2012, 05:30 AM
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Did you check the air box and filter boxes for leaks?

Just as important as the carbs as I found out recently.

Also, if you try to run the engine with just the carbs on, the behaviour you decribe is normal behaviour.

Another that I came across: The diafragm of the slides were really hard to install correctly. Check that it takes about a second for the slides to drop if you release them.
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post #4 of 4 (permalink) Old 06-17-2012, 06:13 AM
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A similar situation happened to me my friend.

When you re installed your carbs make sure that you tighten your idle knob back down to where you had it.. If she idles on choke but not when you take her off shes not getting enough gas.

This is just 1 idea... A simple mistake that is easily overlooked.

Good Luck.


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