Maintenance & Technical > KX500 Original
Carburator issues?
Uzi9mm:
:? I have a 2002 KX500. Gnarly pipe, Boyesen Rad valve. Overall, bike is in good condition. After a couple of slow priming kicks, I can usually start my 500 on the first hard kick with the choke on and a crack of throttle. I have the idle set just a little high. Today, I warmed it up and rode it around for about 10mins. While sitting there, after the ride, I revved it up a couple times. The engine remained at an unusually high idle like the fuel was turned off. I put it back in gear and rode it. Then the idle went back to normal. I stopped and revved it up. And the same thing happened all over again. I'm running some really old VP110 at 32:1 (I keep my fuel in a 5gal safety can with a spring loaded lid). Last time I rode the bike was 2 weeks ago for an hour with no probs. I cleaned the air cleaner ride before last. The temp is about 20deg cooler since last time I rode. I searched the forum for idle probs and saw that it might be a lot of things from clogged jets to air leaks and plugged fuel lines. Just wondering if anyone else has seen anything like this before.
Rowdy-Yates:
I know my bike revs really high when I first start it cold. After it warms up it will come back down. Not sure why it does this but I will be rebuilding my carb soon.
stewart:
when the moter revs or searhes for idle speed its lean pluged pilot jet ussallt ..or pull petcock out of tank and clean filter built on pet cock s top that nobody seems to look at
hughes:
20 degrees will make a big diff. in the jetting. Might need to adjust the mixture screw (turn it in to take away some air)
Uzi9mm:
Thanks for the info. I'm going to start by cleaning the tank and carb.
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