Troubleshooting - Kohler Courage XT6.5 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 Misfires
Backfires
Overheats
High Fuel
Consumption
Engine Specifications
Model Bore
XT6.5
2.56 in.
(65 mm)
XT6.75
2.75 in.
XT8
(70 mm)
*Exceeding maximum angle of operation may cause engine damage from insufficient lubrication.
Additional specification information can be found in service manual at KohlerEngines.com.
Exhaust Emission Control System for models XT6.5, XT6.75, XT8 is EM for U.S. EPA, California,
and Europe.
Any and all horsepower (hp) references by Kohler are Certified Power Ratings and per SAE J1940
& J1995 hp standards. Details on Certified Power Ratings can be found at KohlerEngines.com.
8
Dirt In
No Improper Fuel
Fuel Fuel Line
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Stroke Displacement
9.1 cu. in.
(149 cc)
1.8 in.
(45 mm)
10.6 cu. in.
(173 cc)
KohlerEngines.com
Possible Cause
Dirty
Debris Incorrect
Screen Oil Level Overloaded
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Oil Capacity
(Refill)
20 oz.
(0.60 L)
Engine Dirty Air
Cleaner
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Maximum Angle
Spark Plug
of Operation
Gap
(@ full oil level)*
0.03 in.
20°
(0.76 mm)
14 590 11 Rev. --
Faulty
Spark
Plug
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