Translations:KAVAN S15-S180A/R FS30-FS180AR - Instruction Manual/34/en

Caution: The workshop must be well ventilated, otherwise there is a risk of carbon monoxide poisoning from the exhaust gases.

The tank containing the recommended fuel must be secured so that the fuel outlet is at the same height as the needle-valve on the carburettor. Prepare (do not connect yet) a glow plug heater - a Power Panel with 12V lead-acid battery, a compact glow plug heater (with 1.2-1.5V battery with a capacity of at least 1700 mAh etc.
Fasten the propeller so that the engine piston reaches top dead centre (TDC) at the “two o’clock” position. Select the propeller diameter and pitch according to the table in this manual.
Set the needle-valve 1-1/2 (one and a half) turns from the fully closed position. Set the throttle lever to the 1/3 open position with your radio.
Prime (draw fuel into) the engine by turning the propeller counter clockwise several times, while closing the carburettor air intake with your finger. (You can also inject a few drops of fuel with a syringe above the piston if you have removed the muffler or glow plug - this can be useful for a beginner who has not yet mastered the correct „swing“ of the propeller when starting the engine for the first time. Once the engine is properly run in, it does not require any such thing.
If the engine is built into the model, you can achieve the same effect by turning the model „upside down“ for a few seconds. Only briefly - be careful not to flood the engine.)
If you are using an electric starter, do not choke the carburettor air intake - otherwise an excessive amount of fuel will be sucked in that could hydro-lock the engine.
Turn the propeller once to remove any excess fuel and connect the glow plug heater. A few vigorous turns of the propeller should now cause the engine to start, even if only for a short time.
Adjusting the needle-valve (1) - slowly open the throttle fully, and then slowly close the needle until the engine sound starts to change (from a high pitch to a lower pitch). Disconnect the glow plug heater. If the engine stalls, close the needle a little more (about 30 degrees) and start the engine again.
Adjusting the needle-valve (2) - Close the needle by 10-15 degrees and wait a moment for the speed to change. After the speed increases, repeat the procedure (always with a small delay) until the engine speed does not change when the needle is closed.
If the engine does not start at all, check to see if the glow plug is glowing. If the engine starts, runs for a few seconds, and then stalls, open the main needle 1/2 turn, prime the fuel again, and start again. Immediately after starting, when the engine is running on the fuel you primed, you should see a column of fuel being drawn into the engine through the fuel line. Remember, if the glow plug and glow plug heater are good and the engine has fuel, it should start, even if only for a moment.