53
Disassembly/Inspection and Service
32 690 01 Rev. D
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 Leads
NOTE: Pull on boot only, to prevent damage to spark
plug lead.
1. Disconnect leads from spark plugs.
2. Shut off fuel supply.
Drain Oil From Crankcase and Remove Oil Filter
1. Remove oil fill cap/dipstick and oil drain plug.
2. Allow ample time for oil to drain from crankcase and
oil filter.
3. Remove and appropriately discard oil filter.
4. Use an allen wrench to loosen adapter nipple. Note
locating pin of adapter and corresponding notch in
pad of oil pan. Remove nipple, washer (plastic
adapters only), and oil filter adapter.
5. Remove oil pump outlet tube assembly and oil feed
tube (if not removed with nipple).
Remove Muffler
Remove exhaust system and attaching hardware from
engine
Remove Fuel Pump (if equipped)
WARNING
Explosive Fuel can cause fires and severe
burns.
Do not fill fuel tank while engine is hot or
running.
Gasoline is extremely flammable and its vapors can
explode if ignited. Store gasoline only in approved
containers, in well ventilated, unoccupied buildings,
away from sparks or flames. Spilled fuel could ignite
if it comes in contact with hot parts or sparks from
ignition. Never use gasoline as a cleaning agent.
1. Disconnect pulse (vacuum) hose and outlet fuel line
from fuel pump.
2. Remove mounting screws, unhook outlet hose from
blower housing clip, and remove fuel pump from
blower housing.
Remove Blower Housing and Outer Baffles
1. Remove screws securing blower housing.
2. Remove blower housing from engine.
3. Remove M6 mounting screw on bottom of each
outer baffle into cylinder, and M5 screws going into
backing plate and cylinder head flange. One screw
may also secure lift strap on 1 side.
Remove Throttle Controls
Control Bracket Components
F
G
C
C
C
B
A
D
D
E
A
Choke Linkage
B
Throttle Linkage
C
Governor Lever
D
Governor Spring
E
Cross Shaft
F
Control Bracket
G
Dampener Spring
1. Remove screws securing throttle control bracket to
cylinder heads.
2. Disconnect choke linkage from choke actuator lever.
Unhook governor spring, and dampener spring from
governor lever. Note hole locations for reassembly.
Remove External Governor Controls
Loosen nut and remove governor lever from cross shaft.
Leave lever attached to throttle linkage.
