Satoh Bison S650
The Satoh Bison S650 is a tractor produced by Satoh. It is equipped with a 60.2 ci 1.0 L engine. The rated power output is 25 hp 18.6 kW. Transmission: 6 forward and 2 reverse. Operating weight: 2105 lbs 954 kg.
Engine Power
25 hp
18.6 kW
Fuel & Capacities
9.5 gal
36.0 L
Transmission
6 forward and 2 reverse
Operating Weight
2105 lbs
954 kg
Satoh Bison S650 Serial Number & Year Decoder
Find the exact manufacture year of your tractor by checking your chassis serial number below.
Where to Find the Serial NumberThe serial number plate is commonly located on the front frame, tractor transmission housing (right side), or instrument panel badge.
Overview
 | 1973 - 1983
Compact Utility tractor |
|---|---|
1973 - 1983 | |
Compact Utility tractor | |
Production | |
|---|---|
Manufacturer | Satoh |
Compact Utility tractor | |
Built in Japan | |
Satoh S650 Engine | |
|---|---|
Mazda 1.0L 4-cyl gasoline | |
Fuel tank | 9.5 gal
36.0 L |
Engine details ...  | |
Satoh S650 Transmission | |
|---|---|
6-speed unsynchronized gear | |
Transmission details ...  |
Satoh S650 Power | |
|---|---|
Engine | 25 hp
18.6 kW |
PTO (claimed) | 22 hp
16.4 kW |
Drawbar (tested) | 18.16 hp
13.5 kW |
PTO (tested) | 22.03 hp
16.4 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Two-wheel drive | |
Final drives | spur gear |
Manual steering | |
Differential mechanical internal expanding shoe brakes | |
Open operator station. | |
Tractor hitch | |
|---|---|
Rear Type | I |
Rear lift | 1102 lbs
499 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO Type | 540/1000 |
Engine RPM | 540@2800 |
Dimensions & Tires | |
|---|---|
Wheelbase | 60.4 inches
153 cm |
Weight | 2105 lbs
954 kg |
Front tire | 5.00-15 |
Rear tire | 11.2/10-24 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Charging system | alternator |
Battery volts | 12 |
References | |
|---|---|
 | |
Satoh Gasoline Tractors published in 1975 | |
S-650G Instruction Book |
Engine
Engine Detail — 60.2 ci / 1.0 L Gasoline
Manufacturer | Mazda |
Fuel Type | Gasoline |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 60.2 ci
1.0 L |
Bore/Stroke | 2.677x2.677 inches
68 x 68 mm |
Power | 25 hp
18.6 kW |
Air cleaner | oil bath |
Compression | 8.6:1 |
Rated RPM | 2800 |
Starter | electric |
Starter volts | 12 |
Oil capacity | 3.2 qts
3.0 L |
Coolant capacity | 5 qts
4.7 L |
Transmission
Transmission — 6 forward and 2 reverse unsynchronized gear
Type | unsynchronized gear |
Gears | 6 forward and 2 reverse |
Clutch | dry disc |
Oil capacity | 18.9 qts
17.9 L |
Three gears (1-3) in two ranges (low-high). | |
 | |
Dimensions
Satoh S650 Tires | |
|---|---|
Ag front | 5.00-15 |
Ag rear | 11.2/10-24 |
Lawn/turf front | 20x8-10 |
Lawn/turf rear | 13.6-16.5 |
Dimensions | |
|---|---|
Wheelbase | 60.4 inches
153 cm |
Length | 105.1 inches
266 cm |
Width | 52.9 inches
134 cm |
Height (steering wheel) | 54.7 inches
138 cm |
Operating weight | 2105 lbs
954 kg |
Ballasted weight | 3640 lbs
1651 kg |
Ground clearance | 13.9 inches
35 cm |
Front tread | 40.9 to 52.8 inches
103 to 134 cm |
Rear tread | 40 to 51.7 inches
101 to 131 cm |
Tests
Nebraska Tractor Test 1106 | |
|---|---|
Gasoline 6-speed 2WD
September 4 - 12, 1972
Link: Nebraska Tractor Test 1106 file | |
PTO performance | |
Power at rated engine speed | 22.03 hp
16.4 kW |
Fuel use | 2.2 gal/hour
8.3 l/hour |
Power at rated PTO speed | 21.48 hp
16.0 kW |
Fuel use | 2.2 gal/hour
8.3 l/hour |
Drawbar performance | |
Max power | 18.16 hp
13.5 kW |
Fuel use | 2.1 gal/hour
7.9 l/hour |
Max pull | 2,794 lbs
1267 kg |
Photos
Satoh S650G compact utility tractor.
Satoh S650G compact utility tractor.
Satoh S650G operator station and controls.
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