Kohler HD Series Service Manual page 43

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.
Empty Fuel Tank
1. Ensure fuel tank is empty by running engine until it
stops, and is completely out of fuel.
2. Remove gas cap.
Disconnect Spark Plug
NOTE: Pull on boot only, to prevent damage to spark
plug lead.
Disconnect lead from spark plug.
Drain Oil From Crankcase
Drain Oil from Dipstick Tube
A
B
A Air Cleaner
1. To keep dirt, grass clippings, and other debris out of
engine, clean area around oil fi ll cap/dipstick.
2. Remove oil fi ll cap/dipstick.
3. Tilt engine on its side with air cleaner facing up.
Drain oil into an approved container.
4. After crankcase is completely drained, tilt engine
back to level.
5. Dispose of used oil in accordance with local
ordinances.
14 690 10 Rev. --
B Oil
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Disassembly/Inspection and Service
Drain Oil From Crankcase Plug (if accessible)
A
B
A Crankcase Plug
1. To keep dirt, grass clippings, and other debris out of
engine, clean area around oil fi ll cap/dipstick, and
then remove it.
2. Remove crankcase plug on bottom of engine.
3. Drain oil into an approved container.
4. Dispose of used oil in accordance with local
ordinances.
Remove Engine Cover and Retractable Starter (if
equipped)
NOTE: Whenever possible, an impact wrench should be
used to loosen nuts securing retractable starter.
Remove nuts securing engine cover and retractable
starter. Remove engine cover and retractable starter.
Remove Retractable Starter (if equipped)
Remove screws securing retractable starter assembly to
engine.
Remove Blower Housing (if equipped)
Lift off blower housing and retain stud spacers.
Remove Muffl er Assembly
NOTE: Muffl er and guard is either secured with lock
nuts on exhaust studs or with shoulder screws
into exhaust port.
Remove nuts from exhaust studs and remove muffl er
guard; then slide muffl er and gasket (heat defl ector) from
exhaust studs, noting gasket orientation. Or remove
shoulder screws from exhaust port and remove muffl er
guard and muffl er.
Crankcase Plug
B
(Bottom of Engine)
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