N O T E S
6. After the first and second stage run-in procedure, preliminary engine run-in is complete, but the
engine is still new. At this stage, we can proceed to our first initial flight.
Make sure the receiver battery is fully charged, fuel tank is full and the servos have the
correct forward and reverse direction. Then start the engine and allow a 2-minute warm up in the mid
speed range of running. Put the aircraft model on a flat surface, holding tight and set the throttle
position to fully open to adjust the main needle. The idle engine RPM setting is around 10,000 RPM
when the aircraft is on flat ground. When set the nose wheel around 70-80 degree, the RPM will
increasing to 11,500 then put back to a flat surface the RPM will returning to 10,000.
After 2 flights, make slight main needle adjustments when the aircraft model is on a flat
surface, and set the engine to maintain 10,000 RPM operation during flying. Finally, we have completed
the run-in procedure. We hope this engine brings more flying fun and saves as much as fuel costs.
1.Kindly check the fuel lines to ensure there is no leaking or clogged issue when the engine is
running unsmooth or when you have needle setting difficulties. Installing a SH specified fuel
filter SB001 into the fuel tank is suggested.
2.Please use the SH specified 2 cycle engine oil to maintain proper engine operation. Use 92
gasoline and SH specified 2 cycle oil mixed up;
Gasoline and engine oil ratio is
20:1,
roughly around 4.76%
SH specified plug of GT4 or GT5 plug is recommended and we also
suggest the propeller with size 10"x6" to obtain the best performances.
(The engine may be overloaded, leading to shorten life if you use an inappropriate,
or bigger, propeller size)
3.The needles may need to be reset if there are any big changes to the operating flight environment.
(Hot/cold or any differences of the high altitude and low altitude)
4.Please clean the spark plug and burn room after 1 gallon of fuel has run through the engine.
If the heating screen of burn room has serious carbonated damage or the plug bottom is
carbonated, Please replace with a new one (Both plug and burn room are consumables,
please replace according to the use situation)
5.The fuel is flammable and dangerous; always stay away from sparks, heat or any other ignition
source. Don’t store the fuel in the gas tank after you have finished flying your aircraft model.
Store your fuel, gasoline or mixed fuel safely in a cool, dry location.
6. Provided warranty conditions have been met, your product will be repaired or replaced free of
charge. Repair or replacement decision is as the sole discretion of SH.
7. If the engine hasn’t been used for a long time, the fuel may not get through the fuel line into
the engine or carburetor. Please go check whether the fuel filter in the fuel tank is clogged,
disassemble the carburetor and clean up. Adjust the needle setting as recommended and
assembled the relative parts back. Then restart the engine.
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The new engine will flame out due to overheating if RPM exceeds 10,500 RPM
A. Only use with SH specified gasoline spark plug to ensure the engine runs
properly and has great performance.
B. The fuel tank and fuel line need to be made from gasoline resistance material
C. It is prohibited to use any nitro fuel which contains methane!
※
Always watch out for the engine speed and how much fuel is running through; make
sure engine speed stays under 8000 RPM
5. Second stage of run-in:
Set the throttle to fully open position for accelerating, to set the main needle adjustment. The engine needs
to stay in a rich condition during the run-in procedure and the exhaust should emit a lot of fuel and white/blue
smoke at the same time.You can turn the main speed needle counter clockwise 2 hours if the engine reaches
over more than 8000RPM. Adjust in 2 hour increments at a time, until engine returns to stable running
under 8000 RPM. You can turn the main needle clockwise 2 hours if the engine is too rich, leading to
stalling. Make adjustment in 2 hour increments at a time until the engine is back to a rich condition in
mid-range running.
The run-in procedure at this second stage required at least 400cc of fuel running
through.
