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Sticking Throttle


betatechnopilot
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Working from first principles, if the spring in the carb above the slide has the correct spring rate to overcome the collective friction, the slide will be forced to close. I would suggest checking individual components to find the culprit stiffness. Take the carb off, and remove the cable. Check that the slide strokes freely up & down in the carb and that the cable inner moves freely through the outer. The throttle should now be silky smooth when turned. If all good, careful reassembly, paying particular attention to routing the throttle cable to avoid, kinks, acute bends and being nipped should result in your slide snapping closed. It may just be that someone has fitted a weak spring above the slide. Easily resolved. You will sort it!

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Okay removed the fuel tank and pulled the slide. The carb was clean. Lubed cable from the slide end and put it back together. Still sticking. Pulled the throttle apart at the bars again. Put it back together and left the bar clamp screws just tight enough to keep the throttle housing from twisting on the bars and, BINGO!! It's fixed. It's official, I'm an idiot.

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