Carburetor adjustment
Carburetor is adjusted before you buy it. It is not usually needed to change this setting
(always apply if used recommended exhaust system and propeller).
Caution! All settings make only if engine does not run. Injury may be caused by propeller.
Basic setting:
adjusting needle (L) for low revolutions range: 1 turn
adjusting needle (H) for high revolutions range 1,5 turn
(the values are derived from the position of clock-hands, starting position: fully closed
needle)
Caution! Never tighten the adjusting needles with too much strength. This may cause
damage of the needles. If the needles are damaged this way it is no longer possible to adjust
the carburetor and it is necessary to exchange it for a new one.
The new engine comes adjusted to the basic setting. This setting should be kept during the
running in!
After the engine has been run in, adjust it following the instructions below:
- start the engine and warm it up
- let the engine run at idle speed for approx. 5 seconds
If the engine starts to run backwards do not open the throttle - stop the engine
immediately! Otherwise the engine could be damaged!
Adjusting needle (L)
Adjusting needle (H)
Choke lever
Idle screw
Throttle lever
Pressure inlet
