Idle Issue - Kawasaki KLR 650 Forum
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post #1 of 3 Old 08-28-2011, 06:34 PM Thread Starter
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Idle Issue

Just bough an 09 KLR650 with only 800 miles on it. The battery was dead and so it was replaced and the carb needed to be cleaned as well. So my buddy and I did that and it's good as new. Also we drained the old fuel in it since we weren't sure how old it was. It was a repo bike . So now it's starting up great but the only issue I have now is that it's idle. The bike is idling around 1500. It seems like it stuggles to idle around there. Like it almost wants to stall but doesn't. I'm not sure how to explain it. I guess the RPM will drop to 1k then it'll catch itself and idle around 1500. I'm not sure what is causing it. Any suggestions?
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post #2 of 3 Old 08-28-2011, 07:11 PM
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Did you get this guy when you cleaned the carburetor? That is the Pilot Jet, and it lives at the bottom of that jet tower. This Jet feeds the fuel at idle.



Image from "The Care & Feeding Of Your Vulcan Carb"

The fuel available to us is terrible. Some say the Ethanol fuel blends begin phase separation and breakdown in as little as three days from purchase. The predicted shelf life by the distributors is 90 days under ideal situations. A metal tank subject to temperature fluctuations, producing condensation, is less than ideal. Alcohol mixes with condensation, speeding the separation of gas from alcohol. Soon, you have a corrosive fuel, and the chemicals used to prevent the separation are contributing to the blockage of your carburetor. These additives are new to us, and the method of removing the blockage they generate is all trial and error. I haven't found any one cleaning chemical that gets it all, every time. It's not unusual to have to go into the carburetor two or three times using different chemicals to clean everything out,

Best of luck, and welcome to the forum.

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post #3 of 3 Old 08-28-2011, 09:40 PM Thread Starter
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Thanks for the response and the welcome. I did get to the pilot jet and I cleared that out. So you suggest I go through that a few times?
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