Troubleshooting - Kohler Aegis LH775 Owner's Manual

Troubleshooting

Do not attempt to service or replace major engine components, or any items that require special
timing or adjustment procedures. This work should be performed by a Kohler authorized dealer.
Problem
Will Not Start
Hard Starting
Stops Suddenly
Lacks Power
Operates
Erratically
Knocks or Pings
Skips or Misfi res
Backfi res
Overheats
High Fuel
Consumption
Engine Specifi cations
Model Bore
3.3 in.
LH775
(83 mm)
*Exceeding maximum angle of operation may cause engine damage from insuffi cient lubrication.
Additional specifi cation information can be found in service manual at KohlerEngines.com.
Exhaust Emission Control System for model LH775 is EM, O2S, ECM, MFI, MPI for U.S. EPA,
California, and Europe.
Any and all horsepower (hp) references by Kohler are Certifi ed Power Ratings and per SAE J1940
& J1995 hp standards. Details on Certifi ed Power Ratings can be found at KohlerEngines.com
66 590 04 Rev. --
No Improper Dirt In
Fuel Fuel Fuel Line
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Stroke Displacement Oil Capacity
2.7 in. 45.6 cu. in.
(69 mm) (748 cc)
KohlerEngines.com
Possible Cause
Broken Dirty
Fusible Debris Incorrect
Link Screen Oil Level
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(Refi ll)
1.7-1.9 U.S. qt.
(1.6-1.8 L)
Engine Dirty Air
Overload Cleaner
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Maximum Angle
Spark Plug
of Operation
Gap
(@full oil level)*
0.03 in.
(0.76 mm)
Faulty
Spark
Plug
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20°
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