Kohler K9J Service Manual page 18

NOTE: Do not clean the spark plug in a machine
using abrasive grit. Some grit could remain in
spark plug and enter the engine causing extensive
wear and damage.
3. Check gap using a wire feeler gauge. Adjust
gap by carefully bending the ground electrode.
4.
Reinstall spark plug into cylinder head. Torque
plug to 18/22 ft. lb.
SERVICE OPTIONAL REDUCTION GEAR
UNIT
On engines equipped with a reduction gear unit,
check the oil level in unit every 50 operating
hours. Refer to Figure
3-4.
Drain Plug
(Oil Level Check)
Figure 3-4. Reduction Gear Unit.
1 . Remove the plug on the lower part of gear unit
cover. With engine level, the oil should be up
to the bottom of the plug hole.
2. To add oil, remove the vented fill plug at the
top of the unit. Use the same type of oil as
used in the engine crankcase.
3. Reinstall and tighten the plugs securely.
CHECK FUEL FILTER
Some engines are equipped with an in-line fuel
filter. Visually inspect the filter periodically. Re-
place when dirty with a genuine Kohler filter. Refer
to Figure 3-5.
3.4
Figure 3-5. In-line Fuel Filter.
SERVICE STARTER MOTOR DRIVE
Every 500 operating hours or annually (whichever
occurs first) , clean and lubricate the drive splines
of the Bendix-drive electric starter motor.
1.
Remove starter from crankcase. (Refer to ap-
propriate "Disassembly" section.)
2. Remove dust cover, stop nut, stop gear
spacer, spring, dust cover spacer, and drive
pinion.
3. Clean the drive shaft splines with solvent. Dry
solvent thoroughly.
4. Apply a small amount of Kohler electric starter
drive lubricant (Part No. 52 357 01) to splines.
NOTE: Kohler starter drive lubricant (Part No. 52
357 01) must be used on all Kohler electric starter
drives. The use of other lubricants can cause the
drive to stick or bind.
5. Apply a small amount of Loctite® No. 271 to
stop nut threads. Assemble drive parts in re-
verse order of removal. Torque stop nut to
160 in. lb.
6. Reinstall starter to crankcase. (Refer to appro-
priate "Reassembly" section.)
CLEAN CYLINDER HEAD AND COMBUS-
TION CHAMBER
Every 500 operating hours (250 hours when leaded
gasoline is used) , remove cylinder head and clean
combustion chamber. Refer to Figure 3-6.