Kohler K91 Service Manual page 20

3 . Measure valve-to-tappet clearance with a flat
feeler gauge .
On M odel K9 1 , K 1 4 1 , K 1 6 1 , K 1 8 1 -If the
clea rance is too small,
grind the valve stems until the correct clear­
ance is obtained . Make sure valve stems are
ground perfectly flat and smooth .
Model Intake Valve
K9 1 . 005 " / . 009 "
K1 6 1 , K1 8 1 . 006 " 1 . 008 "
K24 1 , K301 . 008 " / . 0 1 0 "
K32 1 , K34 1
Figure 3-9 . Valve Clearances
If clearance is too large,
recheck clearance .
NOTE : Large clearances can also be reduced by
grinding the valves and lor valve seats. Refer to
the " Inspection And Repair/Reconditioning " section
for valve specifications .
On Models K 2 4 1 , K301 , K 3 2 1 , K341 -
clearance by turning the adjusting screw on tap­
pets . Refer to Figure 3-9 .
Figure 3 - 1 0 . Adjusting Valve-To-Tappet
Clearance - Models K 2 4 1
Through K34 1 .
3 . 6
remove the valves and
Exhaust Valve
. 0 1 1 " / . 0 1 5 "
. 0 1 7 " / . 0 1 9 "
. 0 1 7 " / . 0 1 9 "
replace the valves and
Adjust the
STORAGE
If the engine will be out of service for approxi­
mately two months or more , use the following
storage procedure .
1 . Change the oil when engine i s still warm from
operation . Refer to .. Change Oil . "
2 . Change the oil in reduction gear unit , if so
equipped . Refill with the same oil as used in
engine crankcase for season of operation. Re­
fer to " Service Optional Reduction Gear Unit . "
Run engine for a few minutes to distribute
clean oil throughout engine.
3. Drain the fuel tank and fuel system (or run
engine until fuel tank and fuel system are
empty) .
4 . Remove the spark plug . Add one tablespoon
of engine oil into the spark plug hole . I nstall
plug , by do not connect plug lead . Crank the
engine two or three revolutions.
5 . Remove the spark plug. Cover the spark plug
hole with thumb and turn engine over until the
piston is at the top of its stroke (pressure
against thumb is greatest) . Reinstall plug , but
do not connect plug lead .
6 . Clean the exterior surfaces of engine. Spread
a light film of oil over any exposed metal sur­
faces of engine to prevent rust .
7 . Store the engine in a clean , dry place .