V45 FUEL SYSTEM SERVICE INFORMATION 4-1 CARBURETOR INSTALLATION 4-17 TROBLESHOOTING 4-2 PILOT SCREW ADJUSTMENT 4-18 CARBURETOR REMOVAL FUEL TANK 4-19 epell•a. (V45 SABRE) 4-3 AUXILIARY FUEL TANK CARBURETOR REMOVAL (V45 MAGNA) 4-20 (V45 MAGNA) 4-5 AUTOMATIC FUEL VALVE VACUUM CHAMBER 4-6 (V45 SABRE) 4-20 FLOAT CHAMBER 4-8 AIR CLEANER 4-21 PILOT SCREW 4-10 FUEL PUMP 4-22 CARBURETOR SEPARATION 4-11 HIGH ALTITUDE ADJUSTMENT 4-22 CARBURETOR ASSEMBLY 4-14 (USA only) SERVICE INFORMATION GENERAL lee WARNING Gasoline is extremely flammable and is explosive under certain conditions. Work in a well ventilated area. Po not smoke or allow flames or sparks in the work area. • The front cylinders use down draft carburetors. • When disassembling fuel system parts, note the locations of the 0-rings. Replace them with new ones on reassembly. • The float bowls have drain screws that can be loosened to drain residual gasoline. • Fuel pump inspection is in section 21. • The No. 1 and No. 3 carburetors use different jet needles (thinner) and shorter springs than the No. 2 and No. 4 carburetors (SABRE only). Do not interchange these parts. TOOLS Special Hand vacuum pump/gauge Valve guide driver, 7 mm Common Float gauge ST—AH-260—MC7 or A973X-041—XXXXX (U.S.A. only) 07942-8230000 (U.S.A. only) 07401-0010001 SPECIFICATIONS V45 SABRE V45 MAGNA Venturi dia. Primary 11.7 mm (0.46 in) Primary 11.1 mm (0.44 in) Secondary 29.2 mm (1.15 in) Secondary 29.2 mm (1.15 in) Identification No. VD50A VD51A Float level 8.3 mm (0.33 in) 7.2 mm (0.28 in) Main jet #132 #128 Idle speed 1,000± 100 rpm Throttle grip free play 2-6 mm (0.08-0.24 in) Pilot screw initial opening See page 4-18 Date of Issue: October, 1982 0 HONDA MOTOR CO., LTD. 49 4-1