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Briggs & Stratton 271172 User Manual

Briggs & Stratton 271172
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 271172 Specifications

General IconGeneral
BrandBriggs & Stratton
Model271172
CategoryEngine
LanguageEnglish

Summary

SECTION 1 - SAFETY, MAINTENANCE, AND ADJUSTMENTS

ENGINE SAFETY

Information on hazards associated with engines and how to avoid injury.

ENGINE MAINTENANCE

Covers fuel and oil recommendations, maintenance schedule, and specific component maintenance.

MAINTENANCE CHART

Provides a schedule for maintenance tasks based on operating hours or time intervals.

AIR FILTER

Explains the importance of the air filter and procedures for cleaning or replacing it.

OIL AND OIL FILTER

Procedures for changing engine oil and replacing the oil filter, including recommended intervals.

ENGINE ADJUSTMENTS

Procedures for adjusting engine controls, including remote controls and governor settings.

SECTION 2 - TROUBLESHOOTING

SYSTEMS CHECK

A systematic approach to diagnosing common engine operation complaints by checking ignition, carburetion, and compression.

Check Ignition

Procedures for testing the engine's ignition system to determine if it is functioning correctly.

Check Carburetion

Steps to check the carburetor and fuel system for proper function, including common issues.

Check Compression

How to check engine compression using a leakdown tester to identify sealing issues.

ELECTRICAL SYSTEMS

Information on electrical system testing, including equipment used and specific system diagnosis.

Alternator System Diagnosis

Troubleshooting guide for common alternator system complaints and their possible causes.

ELECTRIC STARTERS

Troubleshooting common problems related to electric starter systems.

SECTION 4 - FUEL SYSTEMS AND CARBURETION

CARBURETION

Information related to engine carburetors, including identification and service procedures.

CARBURETOR SERVICE

Detailed procedures for servicing various carburetor models, including disassembly and cleaning.

LMS Carburetor

Specific service instructions for LMS carburetors used on vertical and horizontal shaft engines.

LMT Carburetor

Service procedures for LMT carburetors used on horizontal and vertical models.

Nikki Carburetor

Carburetor service instructions for Nikki carburetors found on vertical shaft engines.

SECTION 5 - GOVERNOR SYSTEMS

GOVERNED RPM LIMITS

Guidance on checking and adjusting governed RPM limits to meet specified engine performance.

GOVERNOR SERVICE

Procedures for servicing the mechanical governor system, including disassembly and inspection.

Horizontal Models 110000, 120000, 150000, 200000, 210000

Specific governor service procedures for these horizontal engine models.

VERTICAL MODELS 97700, 99700, 110000, 120000, 210000, 280000, 310000, 330000

Governor service procedures for various vertical engine models.

SECTION 6 - CYLINDER HEAD AND VALVES

SERVICE CYLINDER HEAD

Instructions for disassembling the cylinder head, including valve removal.

SECTION 7 - STARTERS

REWIND STARTERS

Information on removing and servicing rewind starters, including disassembly and assembly.

Remove Blower Housing / Rewind Starter

Step-by-step guide for removing the blower housing and rewind starter assembly.

Service Rewind Starter

Detailed instructions for disassembling, inspecting, and assembling rewind starter components.

ELECTRIC STARTERS

Troubleshooting common problems with electric starter systems and model-specific information.

12 VOLT STARTERS

Procedures for checking, disassembling, and assembling 12-volt starter drive and clutch assemblies.

SECTION 8 - LUBRICATION SYSTEMS

LUBRICATION SYSTEMS

Overview of the different lubrication systems used in Briggs & Stratton engines.

OIL PUMP SERVICE

Procedures for removing and servicing the gerotor oil pump and its components.

SECTION 9 - CYLINDERS, COVERS AND SUMPS

CYLINDER

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

INSPECT CYLINDER

Visual inspection of the cylinder for cracks, threads, bore damage, and distortion.

MAIN BEARINGS

Information on checking plain bearings, DU™ bearings, ball bearings, and camshaft bearings for wear.

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

CRANKSHAFTS AND CAMSHAFTS

Procedures for removing, inspecting, and installing crankshafts and camshafts.

SECTION 12 - ENGINE SPECIFICATIONS

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