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Remove Oil Filter Housing and Oil Filter Adapter
NOTE: Further disassembly of oil fi lter housing
assembly is not required unless individual
servicing must be performed. Follow substeps a,
b, and c.
1. Remove screw securing oil fi lter housing and
individual O-rings to adapter. Carefully separate
parts.
Perform following only if oil fi lter housing assembly
requires individual servicing.
a. Remove nipple from cup and oil fi lter housing.
b. Remove oil fi lter cup and spring from housing.
c. Remove rubber valve and spring from cup.
2. Remove screw securing oil fi lter adapter and
individual O-rings to crankcase, then carefully
separate parts.
Remove Ignition Modules
1. Rotate fl ywheel so magnet is away from modules.
2. Remove mounting screws and disconnect kill lead
from ignition modules. Note position of ignition
modules.
Remove Grass Screen and Cooling Fan
Remove screws, attaching hardware and hex studs
securing grass screen, stiffeners and cooling fan to
fl ywheel.
Remove Flywheel
NOTE: Always use a fl ywheel strap wrench or holding
tool to hold fl ywheel when loosening or
tightening fl ywheel screw. Do not use any type
of bar or wedge to hold fl ywheel. Use of such
tools could cause fl ywheel to become cracked or
damaged.
NOTE: Always use a fl ywheel puller to remove fl ywheel
from crankshaft. Do not strike crankshaft or
fl ywheel, as these parts could become cracked
or damaged.
1. Use a fl ywheel strap wrench or holding tool to hold
fl ywheel and loosen hex fl ange screw securing
fl ywheel to crankshaft.
2. Remove hex fl ange screw and washer.
3. Use a puller to remove fl ywheel from crankshaft.
4. Remove woodruff key from crankshaft.
Inspection
Inspect fl ywheel for cracks and fl ywheel keyway for
damage. Replace fl ywheel if it is cracked. Replace
fl ywheel, crankshaft, and key if fl ywheel key is sheared
or keyway is damaged.
Inspect ring gear for cracks or damage. Kohler does not
provide ring gear as a serviceable part. Replace fl ywheel
if ring gear is damaged.
62 690 01 Rev. C
Remove Stator, Rectifi er-Regulator, and Wiring
Harness
1. Disconnect plug from rectifi er-regulator. If B+
(center) lead must be removed from plug, use a
small fl at tool to bend locking tang. Then remove
lead.
2. Remove mounting screws securing rectifi er-regulator
to backing shroud assembly. Note location of ground
lead. If rectifi er-regulator is not being replaced, it
may remain mounted to lower blower housing.
3. Remove two screws securing stator to crankcase
and carefully separate stator wires from blower
housing clips.
4. Unhook wiring harness from molded clips if it is
being serviced separately.
Remove Backing Shroud Assembly
Remove four mounting screws securing backing shroud
assembly to crankcase.
Remove Spark Plugs
Remove spark plug from each cylinder head.
Remove Valve Covers and Fuel Pump
Explosive Fuel can cause fi res and severe
burns.
Do not fi ll fuel tank while engine is hot or
running.
Gasoline is extremely fl ammable and its vapors can
explode if ignited. Store gasoline only in approved
containers, in well ventilated, unoccupied buildings,
away from sparks or fl ames. Spilled fuel could ignite
if it comes in contact with hot parts or sparks from
ignition. Never use gasoline as a cleaning agent.
NOTE: Based on style of fuel pump used refer to
following when removing valve covers.
Mechanical Fuel Pump
Mechanical fuel pump is part of valve cover and
not serviced separately. Remove with valve cover.
Disconnect fuel lines at fuel pump fi ttings. Properly
contain any remaining fuel.
Electric Fuel Pump
Removal will be determined based on mounted location
and application. Disconnect lead connections, fuel
line connections, and mounting hardware as required.
Properly contain any remaining fuel.
Valve Covers
1. Remove screw and grommet securing each valve
cover.
2. Remove valve cover and gasket from each cylinder
head. Note locations of individual valve covers if
they are different.
KohlerEngines.com
Disassembly
WARNING
49
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