Translations:KAVAN AP06A - Instruction Manual/39/en

Tank Size and Orientation to Carburettor

The size of the fuel tank used should be 30-55 ml (1oz. - 2oz.) depending on the model and the length of flights desired. Use of a 55 ml (2oz.) tank will provide between 15 - 20 minutes of run time at full throttle. Use of a fuel tank any larger than 55 ml (2oz.) can lead to excessive leaning of the engine during flight or erratic engine operation and is not recommended. Ideally, the stopper in the fuel tank should be even with the high speed needle valve, or just slightly below the high speed needle valve. In some cases models will only allow the fuel tank to be mounted higher than the ideal location. A fuel tank that is positioned higher than the ideal location usually doesn’t pose any problem except when it is mounted excessively higher and/or is used in conjunction with an inverted mounted engine or during extreme aerobatic flight. If mounting your engine inverted, it is advised to lower the fuel tank so the stopper is 6 mm (1/4” )below the high speed needle valve. Doing this will prevent fuel from siphoning into the engine and flooding it when the fuel tank is full. If you cannot lower the fuel tank far enough, we suggest lowering it as far as can be allowed in your particular application. Always connect the vent/pressure line from the fuel tank to the pressure nipple on the muffler.