Briggs & Stratton 110000, 120000, 150000, 200000, 210000 Horizontal, and 97700, 99700, 110000, 120000, 210000, 280000, 310000, 330000 Single Cylinder OHV Engines Service Manual (P/N 276781-8/09)

• Covers Briggs & Stratton 110000, 120000, 150000, 200000, 210000, 280000, 310000, and 330000 horizontal and vertical single-cylinder OHV air-cooled engines
• Official OEM publication P/N 276781-8/09 (published August 2009)
• Features 56 illustrated figures, including detailed component breakdowns for fuel, ignition, and starter systems
• Serves as the primary 179-page reference for the OHV single-cylinder engine family produced through the 2009 model year

Engine Service Documentation

When you have an engine on the bench, guesswork simply isn't an option. This 179-page reference lays out the exact mechanical configurations and adjustment procedures for Briggs & Stratton's single-cylinder OHV lineup. Working on engines always carries inherent physical risks; ensure the equipment is fully disconnected from power sources, cooled down, and depressurized before starting any component testing or disassembly.

The chapters break down the numerical identification system so you know exactly which build you are looking at. From there, the manual dives deep into fuel system service, providing a clear look at carburetors, fuel pumps, and filters. Ignition and electrical sections cover the essentials: alternator diagnostics, starter motor testing, and proper battery installation guidelines. It also maps out cooling system maintenance, governor adjustments, and exhaust system teardowns for both horizontal and vertical shaft configurations.

Specification and Data Preview

Stop hunting for factory numbers. The technical reference tables give you the precise clearance data required for a proper, reliable rebuild. Intake valve clearance is specified at 0.004–0.006 in., with exhaust valve clearance at 0.009–0.011 in. Crankshaft end play is documented at 0.002–0.028 in., and the spark plug gap is set at exactly 0.030 in. for optimal ignition performance.

You will also find the necessary torque specifications for cylinder heads, rocker arms, and muffler mounting hardware. This provides a definitive look at the engine, electrical, and fuel-injection parameters for the 110000–330000 series, saving valuable time during reassembly.