Moped only runs at maximum idle setting?

Hello everyone, I have a problem where my Beta RR50 (when warm) only runs as long as the idle screw is turned all the way. When cold, however, it revs extremely fast, so the idle screw seems to be making a difference…

A lot has been done to the engine, too: 20mm carburetor, carbon membranes, open intake manifold, 50cc racing cylinder, and much more, but everything (except for the idle speed) is perfectly tuned…

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Hafnafir
11 months ago

obviously not…

wattdennnu2
11 months ago
Reply to  1137jonas

….writes the mechanical engineer and dual-wheel mechanic master…

wattdennnu2
11 months ago

Junior, I’m writing noisy.