Question about 1997 kawasaki VN 750 Vulcan

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I have a Kaw vulcan 750. I removed all the CA emissions and air box and installed new jets. I have adjusted every thing from the mains to the needles. I chokes out at low to med speed. What am I doing wrong?

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You removed all the CA emissions and air box? If it is legal in your home state then it would be fine otherwise you are not going to be happy if the Government found out your illegal modifictions unless it is for off-road purposes.
Did you reinstall the air box again and use an air filter?
If you didnot then install it back and see a difference.
If this advise is good the rate this for the free community support. Thanks

Posted on Aug 01, 2010

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1 Answer

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Hi, Anonymous if your carburetor or exhaust is:
COUGHING is usually caused by an air leak in the intake system and will generally have the same telltale signs, a wet or damp build up of oil/gas seepage at the intake manifold to cylinder head or carburetor to intake manifold connection and in rare instances a worn throttle plate shaft and or seals.
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Hi, Anonymous you need to make sure you have no intake leaks by spraying some Brake Kleen, Contact Cleaner, Starting Fluid etc. around the intake manifold and seals, if the RPM's go up or down significantly then you have a leak that needs to be fixed before you can continue with the carburetor adjustment.
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