Caution: It is important to use seals to protect openings in order to prevent sawdust, residual
abrasives etc., from entering the engine’s interior when the engine is being mounted in the model.
Ensure the cleanliness of the interior of the fuselage. Also ensure that all parts are tight and in
place so that they will not be sucked into the engine.
Needle Setting
Turning the needle clockwise LEANS the fuel mixture. Turning the needle counterclockwise
RICHENS the fuel mixture. The general starting points of the needles are as follows:
Needle settings will vary according to different conditions, such as altitude, temperature, fuel
carb variances, humidity, and so on.
Caution: The adjusting needles must not be tightened with too much strength as this can cause
damage to the needles. If the needles are damaged, it will no longer be possible to make
adjustments to the carburetor and a new one must be obtained.
Starting Procedure
1.! Make sure the propeller bolts are all tight and secure.
2.! Make sure the area is clear of any kind of loose debris, sand, dirt or gravel.
3.! Have someone with eye protection firmly hold the plane. At least two people are required
to start the engine.
4.! We strongly recommend wearing heavy leather gloves when starting the engine.
5.! Switch on the radio system and confirm that all controls work correctly and are in the
correct direction. Ensure that you have the throttle cut switch set to fully close the throttle
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