engine for emotion
ROS motor
LIGHT FLY ENGINES
76
Clutch
TThe centrifugal clutch is adjustable, and it allows to transfer power at the right rpm.
Flywheel
The electronic ignition ywheel has an incorporated fan who generates a
forced air ow to cool down the engine.
Ignition coil
The ignition coil provides the power (volts) needed to spark the spark plugs from only 200
rpm and it is a variable timing unit until the maximum possible power and rpm.
Reduction gear
The helical gear runs in oil bath (40 cc of SAE 140 oil).
The gear ratio is 4:1.
Instructions
Running-in
All engines sold by Marcmotor are assembled by experts and, before being delivered, are
subject to a quality-check procedure. However, running-in is required.
A good running-in ensures long life to the engine and enhances performance of the me-
chanical components.
Before starting the engine, make sure that the carburetor has the right setup. To do this,
rst screw down the screw completely (look at Figure 1), and then unscrew it for 1+¼
turn. That way you can adjust the content of the mixture.
engine for emotion
ROS motor
LIGHT FLY ENGINES
Running-in
Duration Carburetor Fuel mixture
30 liters 1+¼ turn of screw
from all closed
3%
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