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Briggs & Stratton 276781 User Manual

Briggs & Stratton 276781
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 276781 Specifications

General IconGeneral
BrandBriggs & Stratton
Model276781
CategoryEngine
LanguageEnglish

Summary

FORWARD

SECTION 1 - SAFETY, MAINTENANCE AND ADJUSTMENTS

ENGINE SAFETY

Essential safety information for engine operation and servicing.

BRIGGS & STRATTON NUMERICAL IDENTIFICATION SYSTEM

Explains the engine model numbering system for identifying features.

ENGINE MAINTENANCE

Covers fuel and oil recommendations, maintenance intervals, and specific component checks.

ENGINE ADJUSTMENTS

Details procedures for adjusting remote controls and governor systems.

SECTION 2 - TROUBLESHOOTING

SYSTEMS CHECK

Outlines a systematic approach to diagnose engine operation complaints.

ELECTRICAL SYSTEMS

Covers testing procedures and components related to the engine's electrical system.

ELECTRIC STARTERS

Diagnoses common problems and testing procedures for electric starter systems.

BATTERIES

Provides recommendations for battery selection, installation, and charging.

SECTION 3 - EXHAUST SYSTEMS

SPARK ARRESTORS

Instructions for cleaning, inspecting, and replacing spark arrestors.

MUFFLER SERVICE

Covers the removal, inspection, and installation of mufflers for various engine models.

SECTION 4 - FUEL SYSTEMS AND CARBURETION

FUEL SYSTEMS

Safety warnings and procedures related to fuel handling and storage.

FUEL PUMP

Details the removal, inspection, and installation of the fuel pump.

FUEL FILTER

Instructions for draining, replacing, and inspecting the fuel filter.

FUEL TANKS AND SHUTOFF VALVES

Procedures for removing, inspecting, and installing fuel tanks and shut-off valves.

CARBURETION

Covers carburetor identification and service procedures for various models.

SECTION 5 - GOVERNOR SYSTEMS

LINKAGE AND SPRING ORIENTATION

Illustrates correct linkage and spring positioning for governor systems.

GOVERNED RPM LIMITS

Explains how to check and set top governed speed limits using a tachometer.

GOVERNOR SERVICE

Provides disassembly, inspection, and assembly procedures for the governor system.

SECTION 6 - CYLINDER HEAD AND VALVES

SERVICE CYLINDER HEAD

Covers removal, disassembly, inspection, and installation of the cylinder head.

SECTION 7 - STARTERS

REWIND STARTERS

Procedures for removing, servicing, and installing rewind starters.

ELECTRIC STARTERS

Diagnoses common problems and testing procedures for electric starter systems.

SECTION 8 - LUBRICATION SYSTEMS

EXTENDED OIL FILL AND DIPSTICK

Describes oil fill tube and dipstick configurations for specific models.

BREATHERS

Covers the service and installation of breather valves for various engine models.

LUBRICATION SYSTEMS

Details the different lubrication systems used by Briggs & Stratton engines.

OIL PUMP SERVICE

Procedures for removing and servicing the gerotor oil pump.

OIL FILTER AND ADAPTERS

Covers the removal, inspection, and installation of the oil filter and adapter.

OIL PRESSURE SWITCH

Details the testing procedure for the optional low oil pressure switch.

OIL GARD SYSTEMS

Explains the components and operation of the Oil Gard system for engine protection.

SECTION 9 - CYLINDERS, COVERS AND SUMPS

CYLINDER

Covers cylinder inspection, reconditioning, resizing, and cleaning procedures.

MAIN BEARINGS

Details how to check and replace main, DU™, ball, and camshaft bearings.

COVERS AND SUMPS

Provides instructions for installing crankcase covers and sumps, including screw sequences.

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

CRANKSHAFTS AND CAMSHAFTS

Covers removal, inspection, and installation of crankshafts and camshafts.

GEAR REDUCTION

Details disassembly, inspection, assembly, and lubrication of the gear reduction unit.

AUXILIARY PTO

Instructions for removing, inspecting, and assembling the auxiliary PTO drive shaft.

COUNTERBALANCE SYSTEMS

Covers the Synchro-Balance® and AVS® systems, including disassembly, inspection, and assembly.

SECTION 11 - PISTONS, RINGS AND CONNECTING RODS

REMOVE PISTON AND CONNECTING ROD

Step-by-step guide for removing the piston and connecting rod assembly from the cylinder.

DISASSEMBLE

Procedures for disassembling the piston, rings, and connecting rod components.

INSPECT

Guidelines for inspecting pistons, pins, rings, and connecting rods for wear or damage.

ASSEMBLE

Instructions for assembling the piston, rings, and connecting rod components.

INSTALL PISTON AND CONNECTING ROD

Steps for correctly installing the piston and connecting rod assembly into the cylinder.

SECTION 12 - ENGINE SPECIFICATIONS

MODEL 110000 HORIZONTAL SERIES

Provides engine specifications and fastener torque values for Model 110000 horizontal engines.

MODEL 120000 HORIZONTAL SERIES

Lists engine specifications and fastener torque values for Model 120000 horizontal engines.

MODEL 150000 HORIZONTAL SERIES

Details engine specifications and fastener torque values for Model 150000 horizontal engines.

MODEL 200000 HORIZONTAL SERIES

Provides engine specifications and fastener torque values for Model 200000 horizontal engines.

MODEL 210000 HORIZONTAL SERIES

Lists engine specifications and fastener torque values for Model 210000 horizontal engines.

MODELS 97700 & 99700 VERTICAL SERIES

Provides engine specifications and fastener torque values for Models 97700 & 99700 vertical engines.

MODEL 110000 VERTICAL SERIES

Lists engine specifications and fastener torque values for Model 110000 vertical engines.

MODEL 120000 VERTICAL SERIES

Details engine specifications and fastener torque values for Model 120000 vertical engines.

MODEL 210000 VERTICAL SERIES

Provides engine specifications and fastener torque values for Model 210000 vertical engines.

MODEL 280000 VERTICAL SERIES

Lists engine specifications and fastener torque values for Model 280000 vertical engines.

MODEL 310000 VERTICAL SERIES

Details engine specifications and fastener torque values for Model 310000 vertical engines.

MODEL 330000 VERTICAL SERIES

Provides engine specifications and fastener torque values for Model 330000 vertical engines.

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