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Re: Please help.! This makes no sense.
Posted: 12:41 pm May 09 2017
by david
From what I am seeing on your video, it has a lean bog.
Re: Please help.! This makes no sense.
Posted: 02:18 pm May 09 2017
by nate9521
david wrote:From what I am seeing on your video, it has a lean bog.
So if im lean why is my spark plug black and oily? Can the plug be dark and the bike not be rich at the same time?
Re: Please help.! This makes no sense.
Posted: 03:10 pm May 09 2017
by 6 Riders
The bike could be rich on another circuit, like when its running on the needle or main jet.
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Re: Please help.! This makes no sense.
Posted: 08:36 pm May 09 2017
by bufftester
My guess is it's lean on the pilot circuit (which accounts for throttle response from 0 to 1/4) and rich on the main/slide/needle. Regardless, jet numbers are just a STARTING point. Every bike is different, even two identical KDXs with the same parts could end up jetted differently. We see it a lot here and the answer is always the same, so I'll repeat it again...AFTER you make sure everything is mechanically sound, go through the jetting guide step by step, don't skip around, and don't change more than 1 thing at a time. Yes its a PITA, yes it takes time, but the result is you spend your riding time riding and not fiddling with your carb.