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Model FS481V FS541V FS600V FS651V FS691V FS730V
Image
Shaft Type Vertical Vertical Vertical Vertical Vertical Vertical
Engine type Forced Air-Cooled V-twin 4-cycle Vertical Shaft OHV Gasoline Engine Forced Air-Cooled V-twin 4-cycle Vertical Shaft OHV Gasoline Engine Forced Air-Cooled V-twin 4-cycle Vertical Shaft OHV Gasoline Engine Forced Air-Cooled V-twin 4-cycle Vertical Shaft OHV Gasoline Engine Forced Air-Cooled V-twin 4-cycle Vertical Shaft OHV Gasoline Engine Forced Air-Cooled V-twin 4-cycle Vertical Shaft OHV Gasoline Engine
Displacement 603 cc (field_displacement_cc) 603 cc (field_displacement_cc) 603 cc (field_displacement_cc) 726 cc (field_displacement_cc) 726 cc (field_displacement_cc) 726 cc (field_displacement_cc)
Number of Cylinders 2 2 2 2 2 2
Bore x Stroke 2.9 x 2.8 in. (73 x 72mm) 2.9 x 2.8 in. (73 x 72mm) 2.9 x 2.8 in. (73 x 72mm) 3.1 x 3.0 in. (78 x 76mm) 3.1 x 3.0 in. (78 x 76mm) 3.1 x 3.0 in. (78 x 76mm)
Compression Ratio 8.1:1 8.1:1 8.1:1 8.2:1 8.2:1 8.2:1
Oil Capacity 1.8 U.S. qt ( 1.7 liters) 1.8 U.S. qt ( 1.7 liters) 1.8 U.S. qt ( 1.7 liters) 2.2 U.S. qt ( 2.1 liters) 2.2 U.S. qt ( 2.1 liters) 2.2 U.S. qt ( 2.1 liters)
Maximum Power 14.5 hp
10.8 kW/at 3,600 RPM
15.0 hp
11.2 kW/at 3,600 RPM
18.5 hp
13.8 kW/at 3,600 RPM
22.0 hp
16.4 kW/at 3,600 RPM
23.0 hp
17.2 kW/at 3,600 RPM
24.0 hp
17.9 kW/at 3,600 RPM
Maximum Torque 30.9 ft lbs
42.0 N·m/at 1,800 RPM
31.0 ft lbs
42.1 N·m/at 1,800 RPM
32.5 ft lbs
44.1 N·m/at 2,200 RPM
39.4 ft lbs
53.5 N·m/at 2,000 RPM
39.9 ft lbs
54.1 N·m/at 2,200 RPM
40.0 ft lbs
54.2 N·m/at 2,400 RPM
Dry Weight 80.9 lbs (36.7 kg) 80.9 lbs (36.7 kg) 80.9 lbs (36.7 kg) 91.5 lbs (41.5 kg) 91.5 lbs (41.5 kg) 91.5 lbs (41.5 kg)