CRRCpro GP22R Handbuch - Seite 4

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Needle be adjusted by the use of a tachometer to obtain maximum speed. Smooth acceleration and deceleration is an indicator

of proper engine performance.

Engine Start (Recommend to use starter)

If this is the first time of you to start the engine, please fill a little lubrication to the spark plug hole and turn the propeller

assembly lightly to make the piston lubricated enough.If you start by right hand, please stand left front of the engine, contrariwise,

please stand right front of engine.

Note: When hand starting the GP22R, use a thick glove or heavy duty starter stick to protect your hand.

1. The propeller should be installed on the drive washer so that it is at the one o'clock position and at the beginning of the

compression stroke so that it is comfortable to flip it through compression.

2. Have someone help you hold the airplane while you start the engine.

3. Close the choke on the carburetor and open the throttle slightly from the idle position.

4. Switch on, or power your radio system and make sure you have control of the throttle visually at the carburetor. Also make sure

that the reversing position of the servo is correct at the transmitter and that the throttle is at the minimum position.

5. Switch the ignition to ON. If you installed the optional TX activated gas engine kill switch properly between the manual on/off

switch and the ignition, make sure that the TX switch assigned is in the on position. The LED should be illuminated red to indicate

that the ignition is armed.

6. Flip the propeller counter clockwise several times briskly.

7. After you hear some initial fi ring sounds, move the choke lever to the OPEN position.

8. Set the throttle to a high idle. Set the propeller so that it's at the beginning of the compression stroke

9. Flip the propeller through compression rapidly. If this is done properly, the engine will start after several brisk fl ips of the

propeller.

10. After starting, let the engine idle for 30 to 45 seconds. Open and close the throttle slowly until the engine runs smoothly at

idle and at full throttle. Acceleration should also be smooth. If acceleration is not smooth adjustments to the carburetor may be

necessary. (See Carburetor settings )

11. If your engine does not start, repeat steps 6 through 10.

Engine Break In

Use a good quality 2 cycle engine oil

Use a fuel mixture of 20:1 or 25:1 (Bench running)

Use this fuel mixture for approximately 2-3 hours of run time, we suggest that you bench run the engine to become

familiar with it operation. A high Octane unleaded fuel (98 Octane is ideal) is recommended. Do not run the engine at full

throttle for more than ten seconds during this test stand break in as the engine will not be getting the normal cooling

effect that you would get if the engine was in a model that was flying. The GP22R engine requires approximately 12-20

hours running time to complete the break in process. We recommend using a smaller propeller during the engine break in

period.

Engine Cooling

A proper cooling system is vital for any engine. An air cooled engine requires an appropriately sized air intake. Also to keep

this air cooling process working the incoming air must be exhausted. Further, the exhaust air outlet should be four times (4X) the

size of the cool air intake.

Example:

. 10 square inches of air intake area would require

. 40 square inches of exhaust air outlet area

It is up to you to insure that the air flows freely to, over, and away from, the hot cylinder(s) and muffler(s).

DC-CDI details:

The DC-CDI module is a Micro Controller Type Electronic Ignition Module with Auto Advanced Timing. Please observe the

following operational requirements:

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GP22R