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Kohler Courage SV720

Kohler Courage SV720
84 pages
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Service Manual
SV710-SV740
SV810-SV840
2 Safety
3 Maintenance
5 Speci cations
14 Tools and Aids
17 Troubleshooting
21 Air Cleaner/Intake
22 Fuel System
30 Governor System
31 Lubrication System
33 Electrical System
45 Starter System
51 Emission Compliant Systems
54 Disassembly/Inspection and Service
68 Reassembly
132 690 01 Rev. G KohlerEngines.com
IMPORTANT: Read all safety precautions and instructions carefully before operating equipment. Refer to operating
instruction of equipment that this engine powers.
Ensure engine is stopped and level before performing any maintenance or service.

Table of Contents

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Kohler Courage SV720 Specifications

General IconGeneral
Displacement725 cc
Fuel TypeGasoline
Cooling SystemAir-cooled
Fuel SystemCarburetor
Ignition SystemElectronic
Starter TypeElectric
Engine Type4-cycle, OHV
Bore3.27 inches (83 mm)
Oil Capacity2.0 U.S. quarts

Summary

Safety

Maintenance

Maintenance Schedule

Outlines routine service intervals and tasks for engine upkeep.

Oil Recommendations

Details recommended engine oil types and viscosity based on temperature.

Specifications

Engine Dimensions

Provides detailed measurements and diagrams of engine size and component placement.

General Specifications

Lists key engine performance metrics like bore, stroke, and oil capacity.

Torque Specifications

Specifies correct torque values for various fasteners during assembly and maintenance.

Clearance Specifications

Details acceptable gap and clearance measurements for engine components.

Tools and Aids

Tools

Lists specialized tools required for engine service and their sources.

Aids

Lists lubricants, sealants, and other materials needed for engine maintenance.

Troubleshooting

Troubleshooting Guide

Offers a systematic approach to diagnosing common engine starting and running issues.

External Engine Inspection

Guides inspection of engine exterior for potential causes of problems.

Crankcase Vacuum Test

Details procedure for testing crankcase vacuum to diagnose engine issues.

Compression Test

Explains how to perform a compression test to check cylinder health.

Cylinder Leakdown Test

Provides an alternative method to assess engine cylinder seal integrity.

Air CleanerIntake

Air Cleaner Components

Identifies the various parts of the engine's air intake system.

Air Cleaner Base

Details the procedure for removing and reinstalling the air cleaner base.

Fuel System

Fuel System Tests

Outlines tests to diagnose issues related to fuel delivery and pump operation.

Carburetor

Explains carburetor components and functions for fuel-air mixture.

Carburetor Adjustments

Guides on adjusting idle and high-speed fuel/air mixture for optimal performance.

Unitized Throttle and Choke Control

Describes the integrated control system for throttle and choke functions.

Governor System

Governor Components

Identifies the parts of the engine's mechanical governor system.

Governor Adjustments

Provides instructions and cautions for setting engine governed speed.

Lubrication System

Lubrication Components

Identifies key parts of the engine's oil delivery system.

Check Oil Level

Details the procedure for checking engine oil level.

Change Oil and Filter

Outlines the steps for performing an oil and filter change.

Electrical System

Spark Plugs

Covers spark plug inspection, service, and specifications.

Electronic Ignition Systems

Explains different ignition system types and general checks.

Battery

Provides recommendations for battery selection and maintenance.

Electronic Ignition Systems Tests

Details procedures for testing ignition system components and diagnosing faults.

Battery Charging System

Explains testing procedures for the engine's charging system.

Starter System

Troubleshooting-Starting Difficulties

Lists common issues that prevent the engine from starting.

Inertia Drive Electric Starters

Describes the components and service procedures for inertia drive starters.

Solenoid Shift Starters

Details components and service for solenoid shift starter systems.

Solenoid Tests

Outlines procedures for testing the starter solenoid's function.

Emission Compliant Systems

Evaporative Emission Compliant System: Carbon Canister System

Describes the function and maintenance of the carbon canister system.

Secondary Emission Compliant System: Twin Secondary Air Induction System

Explains the twin secondary air induction system for emissions control.

Single Secondary Air Induction System

Describes the single secondary air induction system for emissions control.

DisassemblyInspection and Service

External Engine Components

Illustrates and lists external engine components for disassembly reference.

Disassembly Procedures

Details step-by-step instructions for removing major engine parts.

Cylinder Head Components

Shows an exploded view of cylinder head components.

Valve Details

Provides specifications and diagrams for engine valves.

FlywheelIgnitionBreather Components

Illustrates components related to the flywheel, ignition, and breather systems.

CrankshaftGovernor GearOil Pump Components

Shows an exploded view of crankshaft, governor, and oil pump parts.

Piston and Rings

Details piston and ring components, inspection, and installation.

Honing

Explains the process and specifications for cylinder honing.

Measuring Piston-to-Bore Clearance

Guides on accurately measuring piston-to-bore clearance.

Reassembly

Initial Component Installation

Covers installation of seals, breather, and governor shaft.

Internal Engine Assembly

Guides installation of crankshaft, connecting rods, pistons, and camshaft.

Oil Pan and Flywheel Assembly

Details installation of the oil pan and flywheel assemblies.

Ignition and Cylinder Heads

Covers installation of ignition modules and cylinder heads.

External Components and Final Assembly

Covers installation of external parts like intake, carburetor, and blower housing.

Final Testing

Outlines initial engine testing procedures after reassembly.

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