STOPPING THE ENGINE
BREAK-IN PROCEDURE
IMPORTANT! HOW TO CLEAR A FLOODED ENGINE
THINGS TO REMEMBER DURING BREAK-IN
FIRST TANK OF FUEL
SECOND TANK OF FUEL
To stop the engine, pinch the fuel line that runs to the carburettor. Pinching this line will
restrict fuel flow and the engine will stop within a few seconds. Never place your finger
over the exhaust to stop the engine. This could result in serious burns to your finger and
could also cause fuel to “back-up” inside the engine, making it harder to start next time.
If you feel excessive resistance when pulling the engine recoil assembly, it may be that the
engine has too much fuel inside. This is known as being “flooded”. It is very important that
you recognise if your engine becomes flooded. Failure to follow these instructions could
result in serious damage to your recoil assembly or internal engine components.
1. Remove the glow plug from the engine.
2. Turn the car upside down.
3. Pull the recoil assembly 5-6 times.
4. Replace the glow plug and repeat the starting procedure.
1. Run the car with the bodyshell removed. This will keep the engine cooler.
2. Always run the car with the air filter fitted.
3. Run the car on a smooth, hard surface. An empty car park or similar is perfect.
4. Use the same fuel for break-in as for regular operation.
5. Do not accelerate or decelerate quickly.
6. The break-in procedure can put excessive strain on the glow plug. It is recommended you
keep a few spares on-hand.
7. DO NOT allow the engine to overheat.
The main mixture control needle should be set at a very rich setting. This will allow the fuel
to carry lots of oil to the internal parts of the engine during the break-in procedure.
1. Open the main mixture control needle (counter clockwise) 4½ turns from the fully closed
position. When closing the main mixture control needle, stop when you feel resistance.
Excessive force will damage the carburettor.
2. Fill the fuel tank with model fuel containing no more than 25% nitromethane.
3. Follow the engine starting instructions.
4. Run the car on a smooth surface with the body shell removed.
5. Run the car at medium speeds, avoiding excessive acceleration or deceleration.
6. Run the car until it is almost, but not out of fuel. If the car runs out of fuel the mixture will
become too lean and this could cause damage to the engine.
7. Stop the engine and allow it to cool. This will take around 15 minutes.
NOTE:
If your engine will not idle consistently, increase the idle speed by turning the idle stop
screw clockwise.
Lean the main mixture control needle (clockwise) by ½ a turn. Run the car for the tank of fuel
as for tank 1. Let the engine cool.
THIRD TANK OF FUEL
Lean the main mixture control needle a further ½ turn. Run the car for the tank of fuel as
for tank 2. Let the engine cool.
