The carburetter fitted to MOV. is an Amal Type 75 /014, and is fitted with a jet suitable for the fuels recommended, the size being 120. A No. 3 Throttle Valve is standard. The MAC is fitted with an Amal Type 76 /004, Main Jet 130, Throttle Valve No. 3. The Taper needle should be in the middle notch for standard purposes, although the position may vary on certain engines. For further instructions see instruction leaflet issued by Messrs. Amal Ltd., Holford Works, Perry Barr, Birmingham, 20.