IGNITION
SYSTEM
This
engine is
equipped
with a de-
pendable
electronic
ignition
system.
Other than
periodically
checking/re-
placing
the
spark
plugs,
no mainten-
ance, timing,
or
adjustments
are ne-
cessary or
possible
with this
system.
ln the
event starting
problems
should
occur which are not corrected by
replacing the spark
plugs,
see
your
Kohler Engine
Service Dealet for
trouble analysis.
CAUTION: Do not apply 12-V DC to
kill terminal of ignition module
as
module will
burn out.
See
wiring diagram
on
page
7.
COOLING
SYSTEM
Every
50 operating
hours
(more
often
under extremely dusty
or dirty condi-
tions) remove cooling
shrouds and
clean cooling fins.
Also
clean dust,
dirt, and oil f rom
external surfaces of
engine
which
can cause improper
cooling.
Make
sure cooling shrouds
are
reinstalled.
Operating the engine
without cooling shrouds will
cause
engine
damage due to
overheating.
AIR
CLEANER
This engine is equipped with a high-
density
paper
air cleaner element.
Some
specifications
are
also
equipped with an
optional
oiled foam
precleaner
which
surrounds
the
pa-
per
element.
Precleaner
lf
so equipped, wash and reoil the
precleaner
every 25 operating hours
(more
often under
extremely
dusty
or
dirty conditions).
1. Remove
wing nuts,
air cleaner
cover, element cover seals,
and
element cover.
Remove
precleaner
f rom
paper
ele-
ment. Wash the
precleaner
in warm
water with detergent.
Rinse
the
precleaner
thoroughly
until
all traces of detergent are
eliminated.
Squeeze
out excess
water
(do
not wring). Air dry.
Saturate
precleaner
in
clean,
f resh
engine oil
and
squeeze out
excess
oil.
Reinstall
precleaner
over
paper
element.
Paper Element
Every 100 operating hours
(more
often
under extremely dusty
or
dirty
conditions) check
the
paper
element.
Clean or
replace the element as ne-
cessary.
1. Remove the
precleaner (if
so
equipped)
from
paper
element.
Gently tap the
flat
side of
paper
element
to
dislodge
dirt. Do not
wash the
paper
element
or use
pressurized
air
as this will damage
the
element.
Replace a dirty, bent,
or
damaged element
with
a
gen-
uine Kohler element.
Handle new
elements carefully.
Do not use if
sealing surfaces
are bent or dam-
aged.
With air cleaner
disassembled,
check the base.
Make sure
it is
secured
and not bent or
damaged.
Also
check
the element cover,
seals, and
breather tube
for
dam-
age or
improper
fit. Replace all
damaged components.
CAUTION:
Damaged
orloosecom-
ponents
could allow unfiltered
air
into the
engine
causing
premature
wear and failure.
Reinstall the
paper
element,
pre-
cleaner,
element cover,
element
cover seals, air cleaner cover,
and
wing nuts. Tighten
wing nuts 1/2
to
1 full turn aJter nuts contact cover.
Do
not overtighten.
SPARK
PLUGS
Every
100
operating
hours remove the
spark
plugs,
check condition
and reset
gaps,
or
replace with new
plugs
as
follows:
'1
. Before
removing spark
plugs,
clean
the area around
base
of
plugs
to
keep dirt and
debris out of engine.
Remove
plugs
and
check condi-
tion.
lncorrect
spark
plugs,
worn
or
f
ouled
plugs,
cracked
porcelain,
or
improper
spark
gaps
can cause
hard starting or engine misf ire.
Do not clean the
spark
plugs
in a
machine
using abrasive
grit.
Be-
place plugs
when
dirty or
if
reuse
is
questionable.
See
"SPECIFICA-
TlONS" on
page
B
for
plug
type.
Check
gaps
(0.025")
using a
wire
feeler
gauge.
Adjust
the
gaps
as
necessary by caref
ully
bending the
ground
electrode. lnstall the
plugs
and torque to 10-l5 ft. lb.
Wire
BATTERY
CHARGING
$Wanrume:
Dangerous Acld,
Explosive
Gases
Batteries contain sulphuric acid. Avoid
contact
with
skin, eyes, and clothing..
B
atte
r i
es
prod
uce ex
p
I
osive
hyd rog e n
gas
while being
charged.
Ventilate the
area when charging the battery. Keep
cigarettes,
sparks,
open
flame, and
other
sources of ignition away
from
battery at alltimes.
Keep
batteries and
acid out of
the reach
of children.
Remove all
jewelry
when working
on
battery.
CAUTION:
Do not apply 12-V DC to
kill terminal of
ignition module as
module will burn out.
See
wiring diagram on
page
7.
2.
2.
2
4.
J.
7
.625" 6ro
-<
-+
,:
I
I
4.
2.
4.
Air
Cleaner
Element
Cover
Seals
Base
Element
Cover
Preclea
ner
Paper.
Element
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