Simplicity lawn tractors

Simplicity Wonder Boy

The Simplicity Wonder Boy is a riding lawn mower introduced in 1957 by Simplicity, built in Port Washington, Wisconsin, USA. It features a 3.6 hp Clinton 167cc 1-cylinder air-cooled gasoline engine with manual or optional electric start. The mower has a 1-speed belt-driven gear transmission with mechanical idler pulley clutch, two-wheel drive, and manual steering with an open operator station. Tires are 10x2.50 front and 4.00x8 rear. Attachments include a 24" mid-mount mower deck and a 30" front-mount blade.

Power-

Founded-

ModelWonder Boy

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Technical Specifications

Detailed specifications and technical data for Simplicity Wonder Boy

Engine

Type	gasoline
Model	Clinton 1200
Power	3.6 hp (2.7 kW)
Cooling	air-cooled
Cylinders	1-cylinder
Bore/Stroke	2.47x2.125 inches (63 x 54 mm)
Displacement	167 cc (10.2 ci)
Starter type	manual recoil, electric Optional

Dimensions

Drive	Two-wheel drive
Steering	Manual steering
Rear tire	4.00x8
Front tire	10x2.50
Operator station	Open operator station

Production

Type	Riding lawn mower
Built in	Port Washington, Wisconsin, USA
Variants	990086 manual start, 990102 electric start
Manufacturer	Simplicity
Original price	$340 in 1957
Year introduced	1957

Attachments

30" Blade	Simplicity, front-mount, 30 inches width (76 cm)
24" mid-mount mower deck	Type mid-mount Simplicity, 1-blade, Cutting width 24 inches (60 cm), Cut height 1.25 to 3.25 inch (3 to 8 cm)

Transmission