Re: Tomos A3 Bogs

Joe Woods /
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it's got a symptom of a clogged carb or a restricted fuel supply... Closing the choke restricts air (enriching the air:fuel mixture) and allows it to run somewhat.

I wouldn't suspect ignition from the symptoms you describe. Get a new plug and gap it to something near 0.025 inch or 0.7mm.

Check for spark by grounding the plug's base to the engine's cooling fins and look for a blue spark..

Check for fuel problems by attempting to start with Starter Fluid. If it starts, fuel is not getting into the engine.

Go through the entire fuel system from gas tank cap's vent, through all filters and/or screeens, all the way to the carb, which must be immaculate.. it's float level and cable adjustments should be checked.

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