Simplicity Yeoman 637

Production: 1972

Production
Manufacturer	Simplicity (a part of Allis Chalmers)
Type	Garden tractor

Mechanical
Chassis	4x2 2WD
Steering	manual
Cab	Open operator station.

Power Take-off (PTO)
Mid PTO	independent
Clutch	manual

Electrical
Ground	negative
Battery volts	12

Engine Detail
Briggs & Stratton 17000
gasoline
1-cylinder
air-cooled vertical-shaft
Displacement	275 cc 16.79 ci
Bore/Stroke	3.00x2.375 inches 76 x 60 mm
Power	7 hp 5.2 kW
Starter	manual recoil
electric OptOptional
Starter volts	12
Oil capacity	1.1 qts 1.0 L

Transmission
Type	belt-driven gear
Gears	3 forward and 1 reverse

Dimensions
Wheelbase	36.5 inches 92 cm
Length	53.5 inches 135 cm
Height (steering wheel)	33 inches 83 cm
Height (hood)	28.5 inches 72 cm
Weight	268 lbs (recoil start) 121 kg
288 lbs (electric start) 130 kg
Rear tread	21.5 inches 54 cm