Posted on Oct 08, 2010

How do yo adjust the air/fuel mixture on a 2002 KLX300?

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Anonymous

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Posted on Feb 21, 2011

Anonymous

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Joined: Feb 21, 2011

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Kawasaki made them that way in order to meet the California emissions controls. ie. there is one available size pilot jet, main jet and needle from Kawasaki. They are all pre-set. Many people buy a Mikuni pumper carb. I didn't. I own a machine shop so I modified the stock one. I made some mini adjustment rings for the needle and modified the main jet diameter to suit. I had to tune it until it didn't lean bog any more. Now it runs great. The mod worked for me. I was leaving to go riding the next day so getting the carb wasn't an option. Most people buy the carb and like it.

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