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Briggs & Stratton 273521 User Manual

Briggs & Stratton 273521
179 pages
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Briggs & Stratton
SINGLE CYLINDER OHV AIR-COOLED ENGINES
8/09
273521 Twin Cylinder OHV Air-Cooled Engines
271172 Twin Cylinder L-Head Air-Cooled Engines
270962 Single Cylinder L-Head Air-Cooled Engines
276535 Two-Cycle Snow Engines
CE8069 Out of Production Engines (1919-1981)
Repair Manuals for other
Briggs & Stratton Engines:
Single Cylinder OHV
Air-Cooled Engines
POST OFFICE BOX 702
MILWAUKEE, WI 53201 USA
©2009 Briggs & Stratton Corporation
BRIGGS&STRATTON
CORPORATION
Part No. 276781-8/09
Quality Starts With A
Master Service Technician
www.ThePowerPortal.com (Dealers)
BRIGGSandSTRATTON.COM (Consumers)

Table of Contents

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Briggs & Stratton 273521 Specifications

General IconGeneral
Governor SystemMechanical
Oil Capacity (oz)20 oz
Fuel Tank Capacity (qt)1.5 qt
Fuel TypeGasoline
Oil TypeSAE 30
Engine TypeSingle Cylinder, 4-Cycle, OHV

Summary

SECTION 1 - SAFETY, MAINTENANCE, AND ADJUSTMENTS

ENGINE SAFETY

Information regarding hazards associated with engines and how to avoid them.

ENGINE MAINTENANCE

Details on fuel and oil recommendations for engine maintenance.

OIL AND OIL FILTER

Instructions for changing engine oil and replacing the oil filter.

SECTION 2 - TROUBLESHOOTING

SYSTEMS CHECK

A systems check procedure to diagnose engine operational problems.

ELECTRICAL SYSTEMS

Overview of electrical testing equipment and systems.

SECTION 4 - FUEL SYSTEMS AND CARBURETION

CARBURETOR SERVICE

Detailed procedures for servicing different carburetor models.

SECTION 5 - GOVERNOR SYSTEMS

GOVERNOR SERVICE

Procedures for servicing the mechanical governor on horizontal shaft engines.

SECTION 6 - CYLINDER HEAD AND VALVES

SERVICE CYLINDER HEAD

Instructions for removing the cylinder head from various engine models.

Install Cylinder Head

Procedures for installing the cylinder head with new gaskets and proper torque sequence.

SECTION 7 - STARTERS

REWIND STARTERS

Procedures for removing, servicing, and installing rewind starter assemblies.

ELECTRIC STARTERS

Troubleshooting common issues with 12-volt and 120-volt electric starter systems.

SECTION 8 - LUBRICATION SYSTEMS

SECTION 9 - CYLINDERS, COVERS AND SUMPS

CYLINDER

Procedures for inspecting, reconditioning, resizing, and cleaning the cylinder bore.

SECTION 10 - CRANKSHAFTS, CAMSHAFTS, BALANCING SYSTEMS, AND GEAR REDUCTIONS

CRANKSHAFTS AND CAMSHAFTS

Procedures for removing, inspecting, installing crankshafts and camshafts.

SECTION 11 - PISTONS, RINGS AND CONNECTING RODS

REMOVE PISTON AND CONNECTING ROD

Steps to carefully remove the piston and connecting rod assembly from the cylinder.

INSTALL PISTON AND CONNECTING ROD

Instructions for installing the piston and connecting rod assembly into the cylinder.

SECTION 12 - ENGINE SPECIFICATIONS

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