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Post by pinkscoot on Nov 3, 2020 18:34:00 GMT -5
Well I have a small problem with my ET4 150, the throttle is stiff. I pulled the cable off the carb and its great, like butter no problem there. The throttle lever on the carb is stiff and a little sticky. Does anyone have experience in loosening it up?
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Post by GrumpyUnk on Nov 4, 2020 13:36:12 GMT -5
Check the linkage and spring and ??? on the side of the carb.
Check that the butterfly/throttle plate is not jammed too far closed as that will make it hard to open from 'idle' position.
Check that the throttle shaft pivots are free of gum/gunk. You can slosh carb cleaner around the pivots and then lube with light oil, after working the throttle a dozen or two times to free it up.
tom
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Post by pinkscoot on Nov 4, 2020 18:22:42 GMT -5
Thanks Tom, I did all of the above and it was better but I also lubed the cable and it was a complete fix. These Piaggio throttles are no joke and a bitch to work on. I took it for a ride and was very happy.
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Post by FrankenMech on Nov 4, 2020 21:14:34 GMT -5
Corrosion of the throttle shaft or bore and slide can also cause poor operation.
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