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Kohler KT730 - User Manual

Kohler KT730
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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

Table of Contents

Questions and Answers

  • J
    Jason ClaytonAug 27, 2025
    What to do if Kohler KT730 Engine starts but does not keep running?
    • B
      Brian ObrienAug 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.
  • R
    Ronald BairdAug 25, 2025
    Why Kohler Engine loses power?
    • M
      Mark CaseAug 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 KT730 Specifications

General IconGeneral
Compression Ratio8.5:1
Fuel SystemCarburetor
Ignition SystemElectronic
Cooling SystemAir
StarterElectric
Displacement725 cc
Power3600 RPM
Torque2400 RPM
Oil Capacity2.0 U.S. quarts
LubricationFull Pressure
Weight92 lbs (41.7 kg)

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