Kohler KT735 - User Manual

96 pages

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132 690 03 Rev. I KohlerEngines.com

Service Manual

2 Safety

3 Maintenance

5 Speciﬁ cations

21 Tools and Aids

24 Troubleshooting

28 Air Cleaner/Intake

30 Fuel System

49 Governor System

50 Lubrication System

52 Electrical System

59 Starter System

63 Emission Compliant Systems

66 Disassembly/Inspection and Service

79 Reassembly

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.

KT610-KT620, KT715-KT745

Questions and Answers

K
Kendra CollinsAug 27, 2025
What to do if Kohler KT735 starts but does not keep running?
- J
  Jessica BurnsAug 27, 2025
  If your Kohler Engine starts but doesn't keep running, there are several possible causes. A faulty carburetor could be the issue, so inspect and replace it if necessary. Also, a faulty cylinder head gasket can cause this problem, requiring replacement. Adjust the choke or throttle controls if they are faulty or misadjusted. Inspect the fuel pump and hoses for any malfunctions or clogs. Look for intake system leaks and repair them. Loose wires or connections that intermittently ground the ignition kill circuit can also be the cause, so tighten them. Replace the fuel with fresh quality fuel to ensure fuel quality isn't the problem. Lastly, clean or replace the fuel tank cap if the vent is restricted.
H
Haley HarrisAug 25, 2025
Why Kohler KT735 Engine loses power?
- A
  Allen YoungAug 26, 2025
  If your Kohler Engine loses power, start by cleaning or replacing the air cleaner element. Ensure the engine isn't overheating by allowing it to cool down. Reduce the engine load if it's excessive. Inspect and clear any restrictions in the exhaust system. Check and replace the spark plug(s) if faulty. Verify and adjust the crankcase oil level if it's too high. Adjust the governor setting if it's incorrect. If the battery is low, charge or replace it. Inspect the engine for compression issues if compression is low. Check and refill the crankcase oil if the level is low. Finally, replace the fuel with fresh quality fuel to rule out fuel issues.

Kohler KT735 Specifications

General

Compression Ratio	9.1:1
Fuel System	Carburetor
Cooling System	Air-cooled
Ignition System	Electronic
Starter	Electric
Displacement	725 cc
Power	24 hp
Lubrication	Full Pressure
Horsepower	24 hp
Oil Capacity	2 U.S. quarts
Dry Weight	85 lbs