GAUI F-50R with Power Starter User Manual

: June 10, 2024
: GAUI

Table of Contents

GAUI F-50R with Power Starter
FOUR-STROKE GASOLINE ENGINE
Specifications
Maintenance and Repair
Warranty
PART DESCRIPTION
References
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GAUI F-50R with Power Starter

GAUI F-50R with Power Starter User Manual-product

FOUR-STROKE GASOLINE ENGINE

The Four-Stroke Gasoline Engine has a displacement of 49.87cc, practical RPM range of 1200 to 7000 RPM, suggested prop range of 2200 to X2110X=160800RPM, gasoline/oil mix ratio of 20:1 and weighs 1500g. For more information, please visit www.gaugipower.com.

The dimensions of the engine are as follows:

Length: 129mm
Width: 76mm
Height: 127mm

The engine assembly instructions are as follows:

Tighten the exhaust header locking nut by tapping the wrench/spanner with a small hammer.
Valve clearance adjustment: The valve clearance should be checked and adjusted after 2 hours of break-in and again after 5 hours. After that, they should only need occasional inspection and adjustment. Loosen the valve rocker adjustment nut.

For product usage, please follow the instructions below:

Before usage, ensure that the gasoline/oil mixture ratio is 20:1.
Start the engine using the appropriate starting procedures as outlined in the manual.
Operate the engine within the practical RPM range of 1200 to 7000 RPM.
Monitor the engine’s performance and inspect the valve clearance periodically.

Specifications

Displacement :
- 49.87cc
Practical rpm :
- 1200~7000rpm
Suggested Props :
- 20~21X10
- 20X10=6800rpm
Gasoline/Oil Mix :
- 20:1
Weight :
- 1500g

Engine assembly.
Valve clearance adjustment
- The valve clearance should be checked and adjusted after 2 hours of break-in and again after 5 hours. After that, they should only need occasion inspection and adjustment.
Recommended Fuel
The factory recommended fuel is high octane (premium) pump gasoline. Av-Gas is not recommended. Mix the gasoline with high quality 2 stroke oil at a ratio of 20:1.
For example: 1 liter of gasoline mixed with 50c.c 2-stroke engine oil, or 1 gallon of gasoline mixed with 6.4 oz. of 2 stroke oil.
The carburetor adjustment
Ignition system
Please refer to the ignition system manual.
Propeller Installation.
The recommend prop size is 20×10 or 21×10. The propeller must be attached with six 4mm bolts. The threads of these 4mm bolts must screw in at least 8mm deep into the hub.
Installation of the engine
While breaking in the engine, we recommend running the engine on your plane or a test stand with ample shock absorption. Serious damage can occur to the engine due to vibration frequency with a rigid test stand. We prefer to fly the engine while it breaks in as it is easier and cooler for the engine compared to ground or bench running.
Warning
- Please read the instructions carefully.
- Always protect yourself by using gloves and safety glasses when starting the engine.
- Be careful of the spark plug pulse! It is in excess of 20,000 volts.
- When operating the motor, never stand, or allow anyone else to stand, in front of, or to the side of the propeller. Always stand behind the propeller.
- Do not operate the motor if you do not want to be completely responsible for any damage or injury incurred or caused during its operation.
- Keep away from the prop while operating the motor. Do not wear loose clothing near the motor or prop.
- Do not run the motor near loose material such as dirt, gravel, power cords, ropes, sand, etc.
- Loose material can be drawn into the turning prop causing injury or damage.
- Check that the propeller bolts are tight before every flight.
- Always install and use an ignition kill switch to stop the motor.
- Adjust the carburetor linkage so that the motor will stop when the carburetor is completely closed.
- If you have any questions about any aspect of operating this motor, do not attempt to start or operate it.
- Never operate the motor, or fly, alone

This motor could stop at any time, for variety of reasons. Do not fly your plane if you couldn’t land it safely when the motor stops.

Maintenance and Repair

Should you ever need to repair your GPOWER engine, genuine spare parts are available through your GPOWER dealer. Do not disassemble the engine unless you have the necessary skills, practice and tools. Please note that any disassembly by unauthorized persons will void the manufacturer’s warranty.

Warranty

GPOWER engines carry a two year manufacturer’s warranty. In case your GPOWER engine needs a repair in the warranty period, return the engine in its original packing, along with a proof of purchase, to your dealer or send it directly to the manufacturer. Please include a description of the problem and include all details about the fuel, propeller and glow plug used. Please note that the warranty will be void if any unauthorized disassembly has taken place. Furthermore the warranty explicitly excludes coverage of all damages caused by corrosion, overheating and crashes.