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Model FS481V FS541V FS600V FS651V FS691V FS730V FS730V-EFI
Image
Shaft Type Vertical 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 Forced Air-Cooled V-twin 4-cycle Vertical Shaft OHV Gasoline Engine
Displacement 603 cc (36.8 cu. in.) 603 cc (36.8 cu. in.) 603 cc (36.8 cu. in.) 726 cc (44.3 cu. in.) 726 cc (44.3 cu. in.) 726 cc (44.3 cu. in.) 726 cc (44.3 cu. in.)
Number of Cylinders 2 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) 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 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) 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
25.5 hp
19.0 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
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) 91.5 lbs (41.5 kg)