This manual covers Tecumseh OHH, OHHSK, OHV, OVM, OVRM, and OVXLC series engines, commonly found in Bolens and other lawn and garden equipment. These 4-stroke, air-cooled internal combustion engines feature Overhead Valve (OHV) or Over-Head Cam (OHC) configurations and utilize electronic ignition. Designed for reliability and performance in demanding applications, these engines are available in various displacements and horsepower ratings, offering robust power for a range of equipment.

This English-language technical manual provides comprehensive service and repair information for the specified Tecumseh engine models. It details essential maintenance procedures, including tune-up steps such as spark plug replacement, air filter servicing, and carburetor adjustments, along with guidance on lubrication and recommended oil types. The manual also covers troubleshooting, technical specifications, and engine characteristics, serving as an indispensable resource for owners, mechanics, and technicians to ensure optimal performance and longevity of their equipment.