Kohler Command CH750 - User Manual

Questions and Answers

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alicia85Aug 16, 2025
How to fix Kohler Command CH750 Engine that cranks but won't start?
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  Natasha CunninghamAug 16, 2025
  If your Kohler Engine cranks but doesn't start, several issues could be the cause. Here are some things to check: * Ensure the fuel shut-off valve is open and the fuel tank isn't empty. * Make sure the key switch or kill switch is in the ON position. * Replace with fresh, clean fuel. * Inspect and reconnect any disconnected spark plug leads. * Correct battery connections if connected backwards. * Replace a blown fuse. Additionally, inspect the choke, fuel lines, fuel filter, carburetor solenoid, and the SMART-SPARK system. Also, check the voltage to the electronic control unit and interlock switch.
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Denise GuerreroAug 19, 2025
Why is my Kohler Command CH750 Engine losing power?
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  Lindsay HarrisonAug 19, 2025
  If your Kohler Engine is losing power, several factors could be responsible. Check the following: * Ensure the air cleaner element is clean or replace it. * Reduce excessive engine load. * Replace the spark plug(s) if faulty. * Add oil if the crankcase oil level is low, or drain excess oil if the level is too high. * Replace with fresh, clean fuel. Also, investigate and resolve any overheating issues, clear any exhaust restrictions, adjust the governor setting, and check the battery.
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Jeffrey CaldwellAug 22, 2025
Why does my Kohler Engine start but not keep running?
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  angela18Aug 22, 2025
  If your Kohler Engine starts but doesn't keep running, consider these potential causes: * Replace with fresh, clean fuel. * Clear the restricted fuel tank cap vent. * Repair or replace the fuel pump or associated hoses if there's a malfunction or vacuum hose issue. * Replace the faulty carburetor or cylinder head gasket. * Adjust or replace the choke or throttle controls if they are faulty or misadjusted. Additionally, inspect and secure any loose wires or connections and repair any intake system leaks.
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Courtney HendricksAug 25, 2025
How to fix Kohler Engine that starts hard?
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  Michael ButlerAug 25, 2025
  If your Kohler Engine starts hard, several factors could be the cause. You can try the following: * Replace with fresh, clean fuel. * Clean or replace the clogged fuel line or filter. * Adjust or replace the choke or throttle controls if they are faulty or misadjusted. * Replace the faulty spark plug(s). * Check and repair or replace the interlock switch if it is engaged or faulty. Also, inspect and secure any loose wires or connections. Replace the sheared flywheel key and the faulty ACR mechanism. Check and improve spark strength, and investigate and remedy low compression and overheating issues.
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angelahessAug 27, 2025
What causes a Kohler Command CH750 to use an excessive amount of oil?
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  kristinefarmerAug 27, 2025
  If your Kohler Engine uses an excessive amount of oil, consider the following: * Drain excess oil to the appropriate level if the crankcase is overfilled. * Use the correct oil viscosity/type. * Replace the broken breather reed. * Repair or replace the crankcase breather. * Replace the blown head gasket. * Replace the worn or broken piston rings, the worn valve stems/valve guides, and repair or replace the worn cylinder bore. Also, tighten fasteners to the correct torque.
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Lacey PerezAug 30, 2025
What to do if my Kohler Command CH750 Engine overheats?
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  smithsheenaAug 30, 2025
  If your Kohler Engine is overheating, consider the following: * Reduce excessive engine load. * Refill the cooling system fluid if the level is low. * Add oil to the appropriate level if the crankcase oil level is low or drain excess oil if the level is high. * Replace the broken cooling fan or replace/reattach the fan belt. Also, check and repair the water pump, and clean or repair any clogged or leaking cooling system components. Adjust to achieve the correct fuel mixture and replace the faulty carburetor.
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Dawn BrewerSep 2, 2025
What causes a Kohler Command CH750 to not idle?
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  James RaymondSep 2, 2025
  If your Kohler Engine will not idle, here are potential causes and solutions: * Replace the faulty spark plug(s). * Replace with fresh, clean fuel. * Clear the restricted fuel tank cap vent. * Adjust the idle fuel needle(s) and the idle speed adjusting screw. * Ensure sufficient fuel supply. Additionally, investigate and resolve any overheating issues, and remedy low compression.
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Derek MendozaSep 4, 2025
What to do if my Kohler Command CH750 Engine will not crank?
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  amanda60Sep 4, 2025
  If your Kohler Engine will not crank, here are some things to check: * Charge or replace the battery if it is discharged. * Check and repair the engagement of pawls. * Check and repair or replace the interlock switch. * Inspect and secure loose wires or connections. * Replace the faulty key switch or ignition switch, and the faulty electric starter or solenoid. Also, investigate and rectify seized components.
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Wanda PhamSep 7, 2025
Why does my Kohler Command CH750 run but misses?
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  Danny MahoneySep 8, 2025
  If your Kohler Engine runs but misses, consider these potential causes: * Replace the faulty spark plug(s). * Replace with fresh, clean fuel. * Reconnect the spark plug lead(s) and secure the spark plug lead boot. * Tighten the spark plug lead. * Check and repair or replace the interlock switch if it is engaged or faulty. Also, adjust the carburetor and the crankshaft position sensor air gap. Check and adjust or replace the ignition module(s), inspect and secure loose wires or connections, and investigate and resolve any overheating issues.
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Matthew NelsonSep 10, 2025
Why is my Kohler Command CH750 Engine knocking?
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  David GrimesSep 10, 2025
  If your Kohler Engine is knocking, several factors could be the cause. Here's what to check: * Reduce excessive engine load. * Add oil to the appropriate level if the crankcase oil level is low. * Replace with fresh, clean fuel. * Use the correct oil viscosity/type. Additionally, investigate and remedy any internal wear or damage and replace the faulty hydraulic lifter.

Summary

Safety

Safety Precautions and Warnings

General safety warnings, cautions, and precautions before operating or servicing.

Maintenance

Maintenance Instructions and Schedule

Procedures and schedule for routine engine maintenance.

Specifications

General Specifications

Key specifications like bore, stroke, displacement, and oil capacity.

Torque Specifications

Torque values for various fasteners and engine components.

Troubleshooting

Troubleshooting Guide

General guide to diagnosing common engine problems.

Engine Cranks But Will Not Start

Common causes and checks for an engine that cranks but won't start.

Engine Starts Hard

Causes for an engine that is difficult to start.

Governor System

Governor Adjustments

Troubleshooting

Diagnosing problems with the governor system.

Lubrication System

Check Oil Level

Procedures for checking and maintaining the engine oil level.

Electrical System

Spark Plugs

Electronic Ignition Systems

Test Ignition Systems

Specific procedures for testing ignition systems.

Starter System

Troubleshooting-Starting Difficulties

Diagnosing common starting problems like no energizing or slow cranking.

Solenoid Tests

Procedures for testing the starter solenoid's pull-in coil and hold-in coil.

Kohler Command CH750 Specifications

General

Compression Ratio	8.5:1
Fuel Type	Gasoline
Starter Type	Electric
Ignition System	Electronic
Lubrication	Full Pressure
Engine Type	4-cycle, twin-cylinder, OHV, air-cooled, gasoline engine
Displacement	747 cc (45.6 cu. in.)