I have a kawasaki kdx 80 it starts fine but it idles high then back to normal then super high and does not like to come down then. The bike is older. I am a car mechanic not a bike mechanic. Please help give me all the possible answers you can Thanks
My first guess is an intake leak. The gasket between the carb and the engine is probably broken,cracked, or just worn out. This is the first place to check.
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