Misfire or skip at 4000 rpm? - Kawasaki KLR 650 Forum
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post #1 of 10 Old 07-10-2011, 09:44 PM Thread Starter
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Misfire or skip at 4000 rpm?

Misfire or skip at 4000 rpm? Any ideas?
I have plenty of power on tack off and if I give it gas when it starts to skip it cleans right up….
It only skips when I am running at a constant 4000-4500 rpm. If I am in fifth gear cruising at 50 mph I will get a constant skip… ????
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post #2 of 10 Old 07-11-2011, 09:28 PM Thread Starter
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I saw an archived tred on here that was talking about a skip or mis-fire. And the comment was that you need to run High test gas in the bike or you will get a skip….. What do you guys run? I always run the cheap stuff…
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post #3 of 10 Old 07-11-2011, 10:08 PM
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You may of collected a little moisture in the float bowl. You might drain it and start fresh. In this area, we have a hell of a time with ethanol blended fuel and anything with a carburetor. Some of the country store gas stations are trying to sell straight gasoline because of problems with property maintenance equipment doing the same thing your's is doing under a load. I'm not looking forward to what we will be dealing with for fuel in the next few years. Carburetors are going the way of rotary dial telephones and home delivered milk.

I don't think it is octane related. I believe it is the additives that are used to slow down the separation of gas from alcohol, the alcohol's tendency to attract moisture, and the reality that today's gasoline has a shelf life about equal to a jug of milk.

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post #4 of 10 Old 07-11-2011, 10:18 PM
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Jake,
I had the same problem with my bike years ago.. My idle screw had vibrated to the point where it was closed.

It was fine when accelerating, but a steady throttle was like the bike was falling on its face.

Anyway, pull the little aluminum cap off the bottom of the carb and lightly run the screw all the way in, and then back it back out 2.5 turns.. I've got a hunch it's the issue.
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post #5 of 10 Old 07-11-2011, 10:20 PM
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The finger's pointing to the adjustment point..

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post #6 of 10 Old 07-12-2011, 04:32 PM Thread Starter
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I will drain the bowel and check the screw tonight
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post #7 of 10 Old 07-12-2011, 04:35 PM
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Hey! Family newsgroup, buddy...

T

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post #8 of 10 Old 07-12-2011, 04:38 PM
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Quote:
Originally Posted by Tom Schmitz View Post
Hey! Family newsgroup, buddy...

T
Beat me to it...

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post #9 of 10 Old 07-12-2011, 04:49 PM
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Might be a good sig line, though...

Tom [email protected]

“The kid poured him another straight rye and I think he doctored it with water down behind the bar because when he came up with it he looked as guilty as if he'd kicked his grandmother.” -Philip Marlowe

“'Why' and 'How' are words so important they cannot be too often used.” -Napoleon Bonaparte

Sting like a butterfly.
Noli Timere Messorem
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post #10 of 10 Old 07-12-2011, 04:50 PM
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Yeah, but you gotta use the toilet guy..
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