Carburetors require regular adjustment to ensure peak performance, and also to avoid an unsafe lean condition, which can prematurely damage your engine. If you find your top-end RPM’s have fallen off a bit, or if you experience lagging or surging, it is probably time to re-adjust the carb needles.

The carburetor is provided with 3 adjust screws they may need a little adjustment depending on the temperature, atmospheric pressure (altitude), etc. of the area where the engine is used.

carb

(more…)