We recommend using a tachometer to continuously monitor the engine speed. It is very important that the rpm are the same that we reported in the technical specifications.

The speed increases or decreases may be due to several reasons: Slip the belt on the engine with belt drive, the carburation too rich or too lean, not suitable propeller or worn, spark plug worn.

Reduction Belt

You can do a test on the ground bringing the engine at full speed if you hear a whistle and see an increase in speed means that the belt does not have the right intention, it should proceed to intentioned as reported in the manual

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