Question about 2001 kawasaki EN 500 Vulcan Classic

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My vulcan 500 seems to be running only on one cyclinder when cold, but then runs better once it warms up.

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Carb is out of adjustment and also may have gotten something in one of the passages and clogged it.

Posted on Sep 29, 2009

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1 Answer

I have 750 Vulcan that will not start when warms up

Does the check engine light come on? That behaviour is normally caused by the camshaft sensor.

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Left my choke on, how do I make my bike run like it used to?

A good start would be to replace the spark plugs, having the choke on shouldnot have caused any permement damage, apart from fouling the plugs, once the engine was warm it would have run rough untill it stoped

Feb 28, 2011 | 2005 kawasaki EN 500 Vulcan

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I have a 2006 Freestar with a 3.9 Engine . When it is cold it has a miss when i step on it. But it gets better when it starts to warm up. Almost seems like a spark plug miss

Spark Plugs ---change at 70,000 miles
O2 Sensors--change at 100,000 miles (front 2 only)
Gas Filter--every 3 years/30,000 miles
Air Filter ---every 3 years/blow off once every year
MAF Sensor---Clean once a year or more often

Ignition Coils--- most definitely will go bad,at
least 1 a year. (Any Check Lights or Codes ? )

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Long Term Fuel Trim--not on O2 Sensors ,until

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Feb 22, 2011 | 2006 Ford Freestar

1 Answer

When machine is cold 1999 formula dlx 500 rotrax motor, it will pull start for first pull, when machine has been warmed, it takes several pulls and having to squeeze the throttle slightly to get it to...

when you are squeezing the throttle you are opneing the slides. allowing more air in. when cold you hit the choke to allow more fuel. running rich. sounds like you need the carbs gone through. how does it run once it is strated warm.? if it runs badly you may have a bad stator

Jan 01, 2010 | Sport & Outdoor - Others

1 Answer

2006 kawasaki 750 vulcan will not idle , will idle with choke

ok buddy on the carb will be some sort of screw and idle screw turn this in 1/4 of a turn with the machine running until it idles at 1000rpm also the choke will stall the engine when warm the choke is only for cold starts get back to me more info or problems f4d68ca.jpg

Sep 24, 2009 | 1992 kawasaki VN 750 Vulcan

1 Answer

Cold idle is right at 2k rpm.

could be a vacume leak. check hose for cracks or lose conections.

Jun 13, 2009 | 1997 Land Rover Discovery

1 Answer

Clutch slipping while cold, when warm/hot, it operates great.

I have a 2000 Vulcan Nomad FI & had a very similar problem. In fact, it's a very common problem with these bikes. I fixed it by replacing the Clutch Spring. (As Described here:

It cost me $40 and 3 hours of time with an impact wrench.

Jan 23, 2009 | 2004 kawasaki VN 1500 Vulcan Classic

1 Answer


Wow , its been a while since I have seen one of those.
The carbs have to be calibrated on those. To insure same airflow and so on. But as I remember the rear cylinder does run a little hotter on those, seems it doesn't get the air that the front one gets. And over time it runs a little hotter. The v45 and the 700 Vulcan had the same trouble in those years.

Jan 15, 2009 | 1986 Honda VT 500 C Shadow

1 Answer

1991 dodge colt won't idle when engine is cold.

probably oil, it may be too thick when it's cold but once it warms up it liquefies and your engine runs smoothly. you could try changing oil, I'm guessing if you have a high performance oil the chances this is the problem may be greater since high performance things are usually geared towards working well when everything is hot

Jun 29, 2008 | 1991 Plymouth Colt

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