61
Disassembly/Inspection and Service
22 690 01 Rev. --
KohlerEngines.com
Clean all parts thoroughly as engine is disassembled.
Only clean parts can be accurately inspected
and gauged for wear or damage. There are many
commercially available cleaners that will quickly remove
grease, oil, and grime from engine parts. When such a
cleaner is used, follow manufacturer’s instructions and
safety precautions carefully.
Make sure all traces of cleaner are removed before
engine is reassembled and placed into operation. Even
small amounts of these cleaners can quickly break down
lubricating properties of engine oil.
Disconnect Spark Plug Lead
Carefully pull on boot section and disconnect spark plug
lead. Carefully remove spark plug lead wire tie from
valve cover.
Turn Off Fuel Supply
Shut off fuel supply.
Drain Oil from Crankcase and Remove Oil Filter
1. Remove oil drain plug and oil fi ll cap/dipstick.
2. Allow ample time for oil to drain from crankcase.
3. Remove and discard oil fi lter.
Remove Air Cleaner
1. Turn knobs toward unlock symbol and remove air
cleaner cover.
2. Lift and remove precleaner (if equipped) and air
cleaner element from air cleaner adapter.
Remove Fuel Pump (if equipped)
NOTE: Inlet, outlet, and pulse lines can remain on fuel
pump unless replacement is required.
NOTE: Unless fuel pump is being replaced, disassembly
from fuel pump bracket is unnecessary.
1. Disconnect fuel pump outlet line from carburetor inlet
fi tting. Line is retained in blower housing, pull to
remove.
2. Using hose removal tool (see Tools and Aids),
carefully remove pulse line from oil fi ll/dipstick tube.
3. Remove fuel pump from bracket.
Remove Fixed Guard (if equipped)
NOTE: Unless fi xed guard is damaged, disassembly
from blower housing is unnecessary.
Remove screw securing fi xed guard to blower housing.
Unsnap guard from housing.
Remove Blower Housing
NOTE: Unless fuel pump bracket is damaged
disassembly from blower housing is
unnecessary.
1. Remove screws securing blower housing to closure
plate.
2. Remove screw securing blower housing to air
cleaner adapter and lift off blower housing.
Remove Intake Manifold, Carburetor, Air Cleaner
Adapter
F
B
C
D
A
E
A
Diaphragm Assembly
B
Black Ground Wire
C
Red Wire
D
Breather Hose
E
Hose Clamp
F
Air Cleaner Adapter
1. If carburetor uses a fuel solenoid, disconnect fuel
solenoid lead from carburetor solenoid.
2. If engine is equipped with Smart-Choke
TM
, unplug
diaphragm assembly red wire from wiring harness.
Unplug black ground wire from Smart-Choke
TM
diaphragm assembly.