Marc Motor ROS Series User Manual

engine for emotion
ROS motor
LIGHT FLY ENGINES
98
Remember that screwing in provides lean mixture, unscrewing gives rich mixture.
Prepare a 3% ratio mixture of fuel and synthetic two stroke oil.
Start the engine and warm it up on the ground.
Run it for no longer than 10 minutes, following this advice:
 •Donotexceed4000rpm
 •Donotmaintainconstantrpmforallthetime
 •Ifyoufeeltheengineisloosingpower(asyoumayhavealean
mixture) adjust the carburetor settings according with the weather
conditions.
After this rst start, make a general check to ensure that everything is all
right and that there is no oil leaking out from the reduction unit.
For the rst 3 litres
 •donotruntheengineatmaximumpowerandforalongtime
 •oftenchangetheacceleratorandneverkeepthesamepositionfora
long time.
After this period:
 •checkallscrews,bolts,nutsandmechanicalparts
 •youcanprogressivelyincreasetherpmthattheenginereachesover4000rpm.
The running-in period nishes after 30 litres. Then, you can pass to the normal use:
Normal use
--- Carburetor Fuel mixture
--- 1 turn of screw from all closed 2,5%
Starting
Be careful when starting the engine!
Check the level of fuel in the tank.
Close the choke; see left picture of Figure 2.
For an easy start, when the engine is still cold, you need to press the inner membrane of the carburetor, but no longer than 2 seconds.
During this operation, you will see the fuel mixture owing into the carburetor.
Before pulling the rope handle, PUSH the decompressor valve (see Figure 3).
This reduces the strength you need to start the engine. It will automatically return to closed position when the engine starts.
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engine for emotion
ROS motor
LIGHT FLY ENGINES

Marc Motor ROS Series Specifications

General

Brand	Marc Motor
Model	ROS Series
Category	Engine
Language	English