Tecumseh 2-cycle AH AV HSK and TVS engines

The Tecumseh 2-cycle AH AV HSK and TVS engines are a family of air-cooled, 2-stroke, single-cylinder gasoline engines designed for use in a variety of outdoor power equipment applications such as lawn mowers, generators, and snowblowers. These engines are known for their durability, reliability, and ease of maintenance.

The AH AV HSK and TVS engines share a common design that features a cast-iron cylinder bore, a forged steel crankshaft, and a die-cast aluminum crankcase. The engines are equipped with a Walbro carburetor, a solid-state ignition system, and a recoil starter. The AH AV HSK and TVS engines are available in a variety of displacements ranging from 123 cc to 196 cc.

The AH AV HSK and TVS engines are designed to operate at speeds ranging from 2,800 to 3,600 RPM. The engines produce a maximum torque output of 5.5 to 8.0 ft-lbs. and a maximum horsepower output of 4.0 to 6.5 HP. The engines are equipped with a centrifugal clutch that engages the transmission when the engine speed reaches approximately 2,200 RPM.

The AH AV HSK and TVS engines are designed for use in a variety of outdoor power equipment applications. The engines are commonly used in lawn mowers, generators, and snowblowers. The engines are also used in a variety of other applications such as pressure washers, pumps, and tillers.

The AH AV HSK and TVS engines are known for their durability, reliability, and ease of maintenance. The engines are designed to withstand the rigors of outdoor use and are backed by a 2-year limited warranty. The engines are also relatively easy to maintain, with routine maintenance tasks such as oil changes and spark plug replacements being easily performed by the average homeowner.

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This manual covers the following basic type or model numbers dependent on age of product: AH520, AH600,AV520, AV600, HSK600, TVS600.

For 2-cycle Tecumseh small engines around 1994. This manual covered many engines under an Old form of Identification which will need to be reviewed as well.

TYPE / SPECIFICATION NUMBER 638-670 1398-1642 and Craftsman 200 Series Models.