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Simplicity Wonder Boy II

Simplicity Wonder Boy II tractor
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The Simplicity Wonder Boy II is a riding lawn mower produced in 1958 by Simplicity in Port Washington, Wisconsin, USA. It features a 4 hp Clinton 167cc 1-cylinder air-cooled gasoline engine with manual recoil start and optional electric start. The mower has a Duomatic 2-speed belt-driven transmission with 2 forward and reverse gears, two-wheel drive, and manual steering with an open operator station. Tires are lawn/turf type with 10x2.50 front and 4.00x8 rear sizes. Attachments include a 24" mid-mount mower deck and a 30" front-mount blade. Original price was $350 in 1958.
Simplicity Wonder Boy IIriding lawn mower19584 hp engineClinton 1290Duomatic transmissionlawn tractormower deckattachments
Power-
Founded-
ModelWonder Boy II

Technical Specifications

Detailed specifications and technical data for Simplicity Wonder Boy II

Engine

Power:4 hp (3.0 kW)
Cooling:air-cooled
Cylinders:1-cylinder
Fuel type:gasoline
Bore/Stroke:2.47x2.125 inches (63 x 54 mm)
Displacement:167 cc (10.2 ci)
Starter type:manual recoil, electric Optional
Engine Detail:Clinton 1290

Variants

990119:manual start
990120:electric start

Dimensions

Lawn/turf rear tire:4.00x8
Lawn/turf front tire:10x2.50

Mechanical

Drive:Two-wheel drive
Steering:Manual steering
Operator station:Open operator station

Production

Type:Riding lawn mower
Built in:Port Washington, Wisconsin, USA
Manufacturer:Simplicity
Original price:$350 in 1958

Attachments

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

Transmission

Type:belt-driven gear
Gears:2 forward and reverse
Transmission:Duomatic

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