Translations:KAVAN FS400AR - Instruction manual/13/en

Needle-valve extension

The needle-valve supplied with your FS 400AR is designed to use an extension so that the needle valve may be adjusted from outside the airplane once the engine is enclosed within the fuselage. A flexible cable with knob on 1 end, approximately 1.6 mm in diameter, should be inserted into the needle valve‘s centre hole. Secure cable by tightening the set screw in the needle valve with the small Hex key included with your engine. On the outside end of cable, secure the included know with the set screw using the small hex key.

Note: Do not use an excessively long extension cable that is unsupported, as this may cause a vibration which might affect the needle valve setting and/or damage the needle valve thread. If you need to have a longer extension cable so that the needle valve can be adjusted from outside of the airplane, always provide a suitable support at the outer end. Additionally, be sure not to position the support for the needle valve extension near the exhaust pipe.

Note: The carburettor cannot be reversed in order to reverse the needle valve location.