Engine Troubleshooting - RCGF 120CC-Twin Operator's Manual

Hide thumbs

Table Of Contents

Table of Contents

1. The propeller should be installed on the drive washer at the one o'clock position and at

the beginning of the compression stroke so that it's comfortable to flip it through

compression.

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

3. Switch the ignition to ON, close the choke on the carburetor and open the throttle

slightly from the idle position.

4. Flip the propeller counter clockwise several times briskly, until a popping sound is

heard. This indicates that the engine is firing.

5. Move the choke lever to the OPEN position.

6. Set the throttle to a high idle. Set the propeller so that it is at the beginning of the

compression stroke.

7. Flip the propeller through compression rapidly. If this is done properly, the engine will

start after several brisk flips of the propeller.

8. 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 Adjustment of the Engine.)

9. If your engine does not start, repeat steps 2-8.

B. Electric Starter Starting

A 12-24V electric starter is recommended to start the RCGF120cc twin.

1. Make sure you use a good quality, lightweight aluminum spinner.

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

3. Switch the ignition to ON, close the choke plate on the carburetor and open the throttle

slightly from the idle position.

4. Use your electric starter to turn the engine over for several seconds, until a popping

sound is heard. This indicates that the engine is firing.

5. Move the choke lever to the open position.

6. Set the throttle to high idle and use your electric starter to turn over the engine until it

starts.

7. 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 Adjustment of the Engine).

8. If your engine does not start, repeat steps 2-7.