CRRCpro GP50R User Manual
CRRCpro GP50R
Thank you very much for choosing this engine. Hope it will bring you a
good happy time. In order to get a good operation, please read the
instruction in detail as below.
I、Parameter
Type： Two-stroke piston valve petrol aircraft engine
Displacement(cc): 50.8cc
Bore x Stroke： 43mm×35mm
Carburettor： Walbro(Diaphragm & Butterfly Valve)
Max. Output： 5.4PSps/7800rmp
RPM Range： 1300-7600rpm
Weight: About 1740g（Without ignition battery）
Ignition power： DC 4.8 Volts (4 cell NiCad or NiMh battery,
ensure battery have max. electric currency
of 0.5A or use 5V stable power supply)
Gasoline Engine
1
Fuel mixture
(Ratio of gasoline and oil): 25-35 : 1
Propeller： 22X8，22X10，23X8
24X6(2-blade prop.)
WARNING：
1、This engine is specially designed for the airplane model. Please
don’t use for any other purpose.
2、We’re responsible for the replacement due to our manufacturing
defect. However, we don’t take charge of inproper operation,
unfamiliar repair work, re-build without permission or using nonoriginal parts.
3、Attention! This engine is not a toy. Any misuse may cause serious
injury or even death. Please read it carefully to know how to use &
operate.
II、Notice before assembling & starting engine
1、Make sure there is a specially designed and firmed engine
assembling position on your model. If not, it can assemble onto the
airplane to break-in.
2、Fix the engine properly.
3、Have adequate airflow & cooling for the engine. Supply big enough
exhaust hole as to cool the engine.
4、Use an approved propeller and spinner. Tighten and balance the
propeller correctly, and check it from time to time.
5、Mount the ignition properly and avoid overheating.
6、Use suitable battery and switch which should match with your ignition.
7、Use suitable fuel tank and fuel line(Tygon) for the engine.
8、Use suitable fuel mixture(gas & oil) to ensure good break-in & flying.
9、Ensure fuel is clean.
10、Keep engine clean enough that it will not affect the heat elimination.
11、Ensure the airplne model is fixed firmly, then start the engine.
12、Start your engine in a perfect way.
13、Adjust the carburettor correctly(Don't adjust the high/low speed
needles in random if you’re not 100% certain).
2
14、Ensure that your spark plug is in good condition and is tightened
correctly.
15、Make sure all the spectators are behind the propeller to avoid the
accidents which caused by the propeller.
16、Wear suitable clothes. Don’t wear necktie, jewellery etc. in order to
avoid the wrapping by running propeller.
17、After engine started, please stay behind the running propeller. Don’t
stand in front of it or beside it.
18、Don’t test & start engine on a soft sand or stone place. It will
damage the engine easily.
19、Please operate the engine in a well-ventilated place. Otherwise, the
exhaust gas will affect your health.
20、Be careful to the operated engine as it is hot.
DECLARATION: We cannot control the safe operation of our products. So
we’re not responsible for the injuries or loss due to in-proper operation.
III、Carburettor settings
Every engine is inspected & operated strictly before packing. The basic
3
Loading...