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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
Sticking throttle on KDX200
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[QUOTE="Dirtdame, post: 1405339, member: 119586"] I bought my 2003 KDX220 brand new. It ran fine throughout the years until last year when suddenly the throttle stuck. It felt like the throttle closed....but it was not the case for me. A mad stab on the rear brake pedal so that I could reach the clutch and kill button before shooting over the cliff saved me. With the bike safely stopped, I pushed the throttle tube and the throttle crunched shut. I sat there in the middle of the trail and worked it back and forth a few times but then it seemed alright. I cautiously finished my ride, then went home and checked the cable, the throttle housing and the slide. Seemed that my slide looked worn and there was a gouge in the carb body in front of the slide. I shrugged it off as an errant piece of debris getting into my carb. Three rides later, the throttle stuck again. I checked everything. Finally after the throttle stuck five times (and there was always two or three good safe rides between incidents) and I replaced the cable, slide (it seemed to be peeling, so I thought maybe the chrome was coming off and sticking the slide), completely disassembled the carb and had RTVd the filter cage support to the boot (even though there was no evidence of dirt getting in through there when I disassembled the airbox), I replaced the entire carburetor with a brand new one (got a smokin' deal on one from a friend who runs an accessory shop). I decided that it was cheaper and safer than trying to figure out what was going wrong. Now 20 rides later, no sign of a sticking throttle whatsoever. The only thing that I can figure is that after years of riding, the carb body wore enough that if a piece of dirt got in there, the clearance was enough for the debris to get wedged between the slide and the body. :think: [/QUOTE]
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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
Sticking throttle on KDX200
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