Question about 1999 kawasaki VN 1500 Vulcan Classic

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Wont start without choke and will not idle. New plugs, fuel filter and clean new gas. Air filter is fine. Runs great other than will not idle except with throttle open slightly. Issue just started without warning.

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Had the same thing on my 01 1500. ended up the low speed jet was nearly plugged. gave the whole carb a good cleaning and she's been sweet ever since. had this same thing on other bikes that sat for long periods of time as well.

Posted on Apr 06, 2013

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Try uping your idle and leave choke open longer.

best of luck, safe riding

Posted on Sep 06, 2010

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1 Answer

Briggs Stratton 5hp I/C starts ok, runs, but will not rev


My money is on a partial blockage of the main jet or the passageway to it. You're having to force it to run through the idle jet by fully choking the incoming air. There's not enough gas coming in with the choke open to allow it to run.

I'm thiniking total carb disassembly, carb cleaner and an air compressor combined with a ton of patience will take care of the issue.

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I have cleaned the gas tank, fuel lines and rebuilt the carb. It now runs but just at idle almost in the choke position. I have played with the throttle and it wants to die when I move it to normal ru


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Hi, Lance and the usual suspects are:
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4. Vacuum line from the petcock to intake manifold cracked.
5. Float needle and seat sticking.
6. Float level too low.
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Kawasaki KLR650 Service Manual
OEM Parts for Kawasaki
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Chainsaw wont idle, stalls even when warmed up. Runs fine once started on high idle. Initial start w/ choke, saw bogs badly, better when warmed up (a bit challenging).


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Bike has been standing for 18 months without the engine being spun. Bike will not start without choke. when choke is off engine stalls


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The battery needs to be fully charged - not just jump started. It wouldn't hurt to do an oil and filter change as well as a air filter and plug change.

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