TROUBLESHOOTING

Symptom: THE ENGINE DOES NOT START

The tank is empty and the fuel cannot reach the carburetor.
Fill up the tank with fuel, and repeat the starting procedure.

The plug is burnt out or the plug starting battery is flat.
Replace the plug or recharge the plug starting battery.

The fuel filter, air filter or exhaust pipe is clogged.
Clean the fuel filter or the air filter, or unclog the exhaust pipe.

Too much fuel has been taken up and the engine is flooded.
Remove the glow plug and let the engine idle to evacuate the excess fuel.

The fuel pipe is disconnected, or broken or perforated.
Connect the fuel pipe to the carburetor, or check the pipe and replace it if it is broken.

Carburetor needles not positioned correctly.
Place the needles in their original position, as supplied initially by the manufacturer.

The carburetor is not connected correctly to the accelerator servo control.
Position the servo control centrally and reconnect the carburetor.

The engine's starting box turns in the wrong direction.
Check the direction of rotation of the starting box and invert if necessary.

Symptom: THE ENGINE STOPS AND STARTS BUT DOES NOT REMAIN ON

Insufficient fuel in tank.
Fill up the tank with fuel.

The plug, although not burnt out, has deteriorated.
Replace the plug.

Fuel filter, air filter or exhaust pipe clogged.
Clean the fuel filter or the air filter, or unclog the exhaust pipe.

The engine is hot from previous use.
Wait until the engine has cooled down.

Clutch setting not correct.
Check and adjust the setting of the clutch.

Fuel filter or air filter clogged, exhaust pipe clogged.
Clean the fuel filter or the air filter, or unclog the exhaust pipe.

The plug battery disconnects immediately.
Leave the battery connected to the plug until the engine is running smoothly.

Foam forms on the fuel in the tank.
Tank fastening must be flexible to absorb the vibrations of the chassis.

Symptom: THE ENGINE DOES NOT MAINTAIN A STABLE MINIMUM REGIME

Type of plug not suitable for climatic conditions.
Use the type of plug suggested in the manufacturer's instructions.

Type of fuel not suitable.
Use a type fuel with a low percentage of nitromethane.

The exhaust pipe and manifold are not fastened correctly.
Install the exhaust pipe and manifold securely, following the manufacturer's instructions.

Symptom: THE ENGINE DOES NOT REACH MAXIMUM REGIME

Insufficient running in period, or not done correctly.
Adjust the full speed needle after warming up the engine, or repeat the running in procedure.

The exhaust pipe and manifold are not fastened correctly.
Install the exhaust pipe and manifold securely, following the manufacturer’s instructions.

The fuel pipe is disconnected, broken or perforated.
Connect the fuel pipe to the carburetor, or check the pipe and replace it if it is broken.

Symptom: THE ENGINE DOES NOT RESPOND READILY TO ACCELERATION

Although not burnt out, the glow plug has deteriorated.
Replace the glow plug.

Combustion is not correct, probably too much oil.
Gradually shut maximum and minimum feed in clockwise direction.

The transmitter's exponential electronic control is not set correctly.
Check the settings on your transmitter.

Symptom: THE ENGINE DOES NOT QUICKLY LOWER THE RPM

The minimum screw is not adjusted correctly.
Open the minimum screw in anti-clockwise direction.

The carburetor is not fastened correctly.
Check the fastening of the carburetor and tighten it if necessary.

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