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Post by heartlessd on Sept 18, 2020 18:58:48 GMT -5
Scooter idles fine and revs fine at 1/4 to 1/2 throttle but will bog down and shut off from idle to wot. I adjusted the a/f screw and it still bogs but doesn't shut off. Air filter is fairly new and spark plug is new. Carb is a Polini 19.5 cp with 88main/34slow jets. Any suggestions on a resolve? TIA
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Post by badmotorscooter on Sept 19, 2020 1:32:57 GMT -5
Make sure the main jet is clear, but it sounds more like a fuel delivery problem. Check the needle valve and the float level in the carb. Before that make sure you have good flow through the fuel line and the fuel pump has vacuum (if it's a vacuum pump).
If it has an inline fuel filter check that too.
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