Operating instructions
MVVS 50 IRS No: 3005L/3005S
Version 1.3
Before using the engine, please read these instructions carefully.
Congratulations on choosing the MVVS 50 gas engine.
The MVVS 50 has been designed and manufactured for propeller-powered radio-controlled
model planes. It is able to meet all of your expectations of an acrobatic racing engine.
Technical specifications
Bore
40 mm
RpM range
1000 – 7500 RpM
Stroke
38 mm
Weight of complete
engine without ignition*
1560 g
Fuel
Unleaded 95-
octane fuel
Weight of ignition unit
190 g
Lubrication
Oil with petrol in
mixture 1:40
* Some manufacturers state the weight of incomplete engines. The value in the table above
stands for the weight of a completely assembled engine, including the spark plug, carburetor,
drive washer and prop screws.
Safety precautions
1)
Never use the engine for any manned vehicles.
2)
When operating model planes, always follow the rules and laws in effect in your country.
3)
The manufacturer declines all responsibility for all damages arising from the operation of
models and other appliances powered by the MVVS 50 engine.
4)
Always use original spare parts.
5)
Never tamper with the engine construction.
6)
Before each flight always check that all the propeller screws are tightened up and in good
condition. If you use a spinner, check that it is tightened up, too. When mounting the
spinner always follow the assembly instructions.
7)
Periodically check that the engine is firmly fixed to the engine mounts. Never start a loose
engine!
8)
Always use a balanced propeller! Always replace the propeller when damaged!
9)
Make sure that no part of your body intersects the plane of the spinning propeller.
10)
Always wear close-fitting, well-fastened clothes when starting or operating the running
engine. Never wear loosely hanging clothes (ties, scarf, etc.).
11)
Never try to stop the engine by using any part of your body.
12)
Always stop the engine either by turning off the ignition switch or by completely closing
the carburetor throttle valve.
13)
Before starting the engine always make sure that the model is safely fixed in place and
cannot start moving.
