The Kawasaki FD750D is a 0.75 l (745 cc, 45.46 cu-in) V-twin 90° liquid-cooled 4-stroke internal combustion small gasoline motor with horizontal shaft, manufactured by Kawasaki Heavy Industries LTd. The FD750D has OHV (overhead valve design); cast iron cylinder liners; float type carburetor with fixed main jet; transistorized fuel pump; flywheel magneto transistor ignition system; mechanical governor and low tone muffler. The Kawasaki FD750D uses full pressure lubrication system with spin-on oil filter and dual element air cleaner. The engine is equipped with solenoid shift type electric starter and 12V-20A or 30A charging coil with regulator. The Kawasaki FD750D produces (20.1 KW; 25.0 HP) at 3,600 rpm of maximum horsepower and 58.3 Nm (5.95 kg·m; 43.03 ft·lb) at 2,400 rpm of torque. Cylinder bore and piston stroke are 78.0 mm (3.07 in) and 78.0 mm (3.07 in), respectively. Compression ratio rating is 8.5:1.0 GENERAL INFORMATION Model: FD750D Type: 4-stroke, OHV, V-twin 90° Crankshaft: 1.125 in. Displacement: 745 cm 3 (45.46 cu-in) Max. horsepower: (20.1 KW; 25.0 HP) at 3,600 rpm Max. torque: (crank PTO) 58.3 Nm (5.95 kg·m; 43.03 ft·lb) at 2,400 rpm Carburetor: Float type carburetor with fixed main jet Cooling system: Liquid-cooling Ignition system: Transistorized ignition Lubricating system: Pressurized lubrication system Starting system: Electric starter Charging system: 12 Volt – 20A or 30A with regulator Fuel used: Unleaded gasoline (octane number 86 or higher) Fuel consumption: 230 g/HPh Cooling system: Pressurized forced circulation type DIMENSIONS AND WEIGHT Kawasaki FD750D Length, mm (in) 520 (20.5) Width, mm (in) 458 (18.0) Height, mm (in) 580 (22.8) Dry weight, kg (lb) 57.0 (125.7) TIGHTENING TORQUE SPECS Cylinder head: 27 Nm; 2.7 kg·m; 20 ft·lb Connecting rod: 21 Nm; 2.1 kg·m; 15.5 ft·lb Flywheel: 56 Nm; 5.5 kg·m; 41 ft·lb Crankcase cover: 22 Nm; 2.2 kg·m; 16.2 ft·lb Intake manifold: 12 Nm; 1.2 kg·m; 9 ft·lb Oil drain plug: 25 Nm; 2.5 kg·m; 18.5 ft·lb Valve clearance lock nut: 11 Nm; 1.1 kg·m; 8 ft·lb MAINTENANCE DATA Maximum speed: 3500 ± 100 rpm Idle speed: 1500 ± 100 rpm Cylinder compression: 7.5 kg/cm2 (107 psi) at 500 rpm Valve clearance: Intake valve: 0.15 mm (0.006 in) Exhaust valve: 0.15 mm (0.006 in) Oil type: 4-stroke or an equivalent (SC, SD, SE, SF, SG, or SH) Recommended oil: SAE 10W-40, 10W-30, 5W-20 Oil capacity: (with filter changed) 1.8-2.0 L (1.9-2.1 US qt) Spark plug: NGK: BPR2ES Spark plug gap: 0.75 mm (0.03 in) Spark plug tightening torque: 25 Nm; 2.5 kg·m; 18.5 ft·lb Ignition coil air gap: 0.25-0.40 mm (0.009-0.015)
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