Kohler Courage SV540

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20 590 08 Rev. A

KohlerEngines.com

SV470-SV620

Owner's Manual

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.

Warranty coverage as outlined in the warranty card and on

KohlerEngines.com. Please review carefully as it provides you

speciﬁ c rights and obligations.

To maintain compliance with applicable emission regulations,

exhaust system backpressure may not exceed limits which can

be found on KohlerEngines.com. Search by Model No., select

Read More, then select Specs tab.

Record engine information to reference when ordering parts or obtaining warranty coverage.

Engine Model

Speciﬁ cation

Serial Number

Purchase Date

EN

DE

ES

FR

IT

PT

Other manuals for Kohler Courage SV540

Service Manual76 pages

Questions and Answers:

M
Matthew RichAug 20, 2025
What to do if Kohler Courage SV540 loses power?
- T
  Tim MunozAug 20, 2025
  If your Kohler engine is losing power, consider these potential causes: a dirty air cleaner element, engine overheating, excessive engine load, a restricted exhaust, faulty spark plugs, high crankcase oil level, incorrect governor setting, a low battery, low compression, low crankcase oil level, or poor fuel quality. Solutions include cleaning or replacing the air cleaner element, allowing the engine to cool, reducing the engine load, clearing the restricted exhaust, inspecting and replacing faulty spark plugs, checking and reducing high crankcase oil level, adjusting the governor setting, charging or replacing the battery, inspecting for causes of low compression, checking and refilling crankcase oil to proper level, and using clean and fresh fuel.
C
Cindy WilliamsAug 23, 2025
What to do if Kohler Courage SV540 starts but does not keep running?
- D
  David EdwardsAug 23, 2025
  If your Kohler engine starts but doesn't keep running, the issue might stem from a faulty carburetor, a faulty cylinder head gasket, or faulty or misadjusted choke or throttle controls. Other possible causes include a fuel pump malfunction (vacuum hose clogged or leaking), an intake system leak, loose wires or connections that intermittently ground the ignition kill circuit, poor fuel quality, or a restricted fuel tank cap vent. Inspect and repair or replace the faulty carburetor. Inspect and replace the faulty cylinder head gasket. Adjust or replace faulty choke or throttle controls. Check and repair fuel pump and hoses. Inspect and repair intake system leaks. Check and secure loose wires or connections. Use clean and fresh fuel. Clear the restricted vent.
G
garcialaurenAug 26, 2025
What to do if Kohler Courage SV540 Engine will not crank?
- K
  Kelsey PalmerAug 26, 2025
  If your Kohler engine won't crank, it could be due to a discharged battery, a faulty electric starter or solenoid, a faulty key switch or ignition switch, an engaged or faulty interlock switch, loose wires or connections grounding the ignition kill circuit, pawls not engaging in the drive cup, or seized internal engine components. Charge or replace the battery. Inspect and replace the faulty starter or solenoid. Inspect and replace the faulty key or ignition switch. Inspect and repair the interlock switch. Check and secure loose wires or connections. Inspect and repair pawls. Inspect internal engine components for seizure.
D
Dawn CaseySep 2, 2025
How to stop Kohler Courage SV540 Engine using excessive amount of oil?
- T
  Terri BestSep 2, 2025
  If your Kohler engine uses an excessive amount of oil, it could be due to loose or improperly torqued fasteners, a blown head gasket or overheating, a broken breather reed, a clogged, broken, or inoperative crankcase breather, an overfilled crankcase, incorrect oil viscosity/type, a worn cylinder bore, worn or broken piston rings, or worn valve stems/valve guides. Check and properly torque fasteners. Inspect and replace blown head gasket. Replace the broken breather reed. Inspect and repair crankcase breather. Drain excess oil from crankcase. Use the correct oil viscosity/type. Inspect and repair or replace worn cylinder bore. Inspect and replace worn or broken piston rings. Inspect and replace worn valve stems/ valve guides.
M
morenomichaelSep 8, 2025
How to fix Kohler Engine that knocks?
- M
  Michael RiosSep 8, 2025
  If your Kohler engine is knocking, it could be due to excessive engine load, hydraulic lifter malfunction, incorrect oil viscosity/type, internal wear or damage, low crankcase oil level, or poor fuel quality. To address this, reduce the engine load. Inspect and repair hydraulic lifters. Use the correct oil viscosity/type. Inspect for internal wear or damage. Check and refill crankcase oil to proper level. Use clean and fresh fuel.
B
bhunterSep 12, 2025
How to resolve Kohler Courage SV540 will not idle?
- S
  sydney75Sep 12, 2025
  If your Kohler engine won't idle, the problem might be due to the engine being overheated, faulty spark plugs, improperly set idle fuel adjusting needle(s), an improperly set idle speed adjusting screw, an inadequate fuel supply, low compression, poor fuel quality, or a restricted fuel tank cap vent. Allow the engine to cool. Inspect and replace faulty spark plug(s). Adjust idle fuel needle(s). Adjust idle speed adjusting screw. Check and ensure adequate fuel supply. Inspect for causes of low compression. Use clean and fresh fuel. Clear the restricted vent.
J
Jordan JohnsonSep 13, 2025
How to fix oil leaks from oil seals and gaskets in Kohler Engine?
- E
  Elizabeth SchmidtSep 13, 2025
  If you're experiencing oil leaks from the oil seals and gaskets in your Kohler engine, it could be due to a broken breather reed, a clogged, broken, or inoperative crankcase breather, loose or improperly torqued fasteners, piston blow by or leaky valves, or a restricted exhaust. Replace the broken breather reed. Inspect and repair crankcase breather. Check and properly torque fasteners. Inspect and replace faulty components causing blow by or leakage. Clear the restricted exhaust.

Kohler Courage SV540 Specifications

General

Power	18 hp
Compression Ratio	8.5:1
Fuel Type	Gasoline
Ignition System	Electronic
Starter Type	Electric
Engine Type	4-cycle, single cylinder, overhead valve (OHV)

Summary

Safety Precautions

Fuel Safety

Safe handling and storage of gasoline to prevent fires and burns.

Exhaust Fumes Safety

Hazards of carbon monoxide from engine exhaust and need to avoid inhalation.

Operational Safety

Warnings about accidental starts, moving parts, electrical shock, and hot surfaces.

California Proposition 65 Warning

California warning about chemicals in engine exhaust causing cancer or birth defects.

Pre-Start Checklist

Engine Operation

Starting Procedures

Guidance on starting the engine, including cold weather tips.

Operating Limits and Conditions

Information on engine angle, speed, and high altitude operational requirements.

Maintenance Instructions

Maintenance Schedule

Recommended service intervals for engine maintenance tasks.

Oil Recommendations and Level Check

Guidance on selecting and checking engine oil levels for optimal performance.

Change Oil and Filter

Oil Sentry (if equipped)

Fuel Recommendations

Fuel Line

Engine Maintenance and Service

Spark Plugs

Procedure for checking, gapping, and installing spark plugs.

Air Cleaner Maintenance

Steps for servicing the air cleaner's precleaner and paper element.

Cooling System and Storage

Ensuring proper air cooling and procedures for engine storage.

Service Parts and Repairs

Information on obtaining service parts and authorized repair services.

Troubleshooting

Engine Specifications

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