68
Disassembly/Inspection and Service
KohlerEngines.com
66 690 14 Rev. A
NOTE: This disassembly sequence removes some
components in subassemblies to enable
technician to perform internal engine servicing.
Do not disconnect every EFI component.
Disconnect Spark Plug Leads
NOTE: Pull on boot only, to prevent damage to spark
plug lead.
1. Disconnect leads from spark plugs.
2. Shut
o
ff
fuel supply.
Disconnect Oxygen Sensor
NOTE: Unless oxygen sensor is damaged or
malfunctioning, disassembly from mu
ffl
er (OEM
supplied) is unnecessary.
Disconnect oxygen sensor connector from wire harness.
Remove Starter and Starter Plate
NOTE: Unless starter plate is damaged, disassembly
from crankcase is unnecessary.
1. Disconnect leads attached to starter solenoid
terminals.
2. Remove screws securing starter to starter plate.
3. Remove screws attaching starter plate to crankcase.
Note orientation of
fl
at side and longer hole.
Drain Coolant from Cooling System
1. Loosen radiator cap, then loosen radiator drain plug
and allow system to drain. Use a suitable container
to catch coolant.
2. Allow any remaining coolant to drain out. Dispose of
coolant properly, according to local regulations.
Drain Oil from Crankcase and Remove Oil Filter
1. Remove
oil
fi
ll cap and dipstick, and one or both
drain plugs. Allow su
ffi
cient time for oil to drain out.
2. Remove and discard oil
fi
lter.
3. Reinstall
oil
fi
ll cap.
