Start the engine at idle speed.
Press the setting lever against the adjusting screw by hand (white arrow).
Check the number of revolutions and, if necessary, remove the seal and adjust the revolutions. Set value: 1300±100 rpm.
After adjustment, seal the adjusting screw with a blue cap.
Increase the speed to 3000 rpm, while the locking damper setting lever moves to the adjusting screw (arrow).
Release the throttle lever. The setting lever should slowly move away from the adjusting screw and the throttle should close in about 3 seconds.
Attention: Installation position of the delay valve: side towards the carburettor.
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