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20
Engine
Tra
c
tors
Lawn
and
Garden
-
110
and
112
5-10
GeneTal
Information
-
Kohler
,
SM-2059-
(Apr-67)
DI AGNOSI
NG
MA L
FUNCTIONS-Continued
Enf;iuc
S/.{(yts
lIard-CoJl
lil1ued
Hi
gh
tensi
on
wire
~horted.
Replace
wire.
High
tension
wire
loose
at
spark
plug
or
coil.
Check
spark
plufS'
connection
and
install
wire
properly
in
co
il.
Loose
e l
ec
trical
connections.
Check
co
nnections
and
tighten
leads
firmly.
Rcstrictecl
fuel
tank
vent.
Replace
filler
cap
or
cap
ga
uge
assembly.
Clogged
fuel
line
or
air
lock.
Clean
and
bleed
line.
Replace
line
if
necessary
.
Broken
choke
cable.
Replace
and
adjust
cab
le
properly.
Throttle
cable
not
properl
y
ad
justed.
Check
cable
at
control
and
governor
as-
sembly
and
adjust
prop
e
rly.
Dirt
or
water
in
fuel
system.
Remove
fuel
system
and
clean
dirt
and
water
from
system.
Install
new
gaskets.
Install
carburetor
kit
if
nec
essa
ry.
High
speed
and
idle
mixture
needles
not
prop
e
rly
adjusted.
Adjust
needles
properly.
Wrong
valve
clearance.
Check
and
adjust
valve
clearance.
Bad
head
gasket.
Replace
gasket
and
torqu
e
cylinder
head
properly.
Restricted
exhaust
system.
Check
exhaust
system
co
ndition.
Replace
muffler
if
necessary.
Low
compression.
Check
compression
and
service
engine
accordingly.
EnfI'ine
Starts
Bul
Fails
to
Keep
Ullrminf{
Restricted
fuel
tank
vent.
Replace
fuel
cap
or
cap
gauge
assembly.
High speecl and
idle
mixture
needles
not
properly
adjusted.
Litho
in U.S.
A.
Adjust
needles
properly.
Broken
c
hoke
cab
le
.
Replace
and
adjust
cab
le
properly.
Dirt
or
water
in
fuel
system.
Remove
fuel
system
and
clean
dirt
and
water
from
system.
Install
new
gaskets.
Install
cal'ubretor
kit
if
necessary,
Ca
rburetor
float
not
·
properly
acljusted
or
leaky
float.
Check
float
co
nditi
on,
adjust
float.
Install
new
float
and
adjust
if
necessary.
High
tension
wire
loose
at
spark
plug
or
coil.
Ch
ec
k
spark
plug
connection
and
install
wire
properly
in
co
iL
Hi
gh
tension
wire
shorted.
Heplace
wire.
Breaker
points
not
properly
adjusted.
Clean
and
regap.
Replace
breaker
points
if
necessary.
Loose
connections.
Check
and
tighten
wires
properly.
Defective
head
gasket.
Replace
head
gasket
and
torque
cylinder
head
properly.
Faulty
condenser.
Check
condenser.
Replace
if
necessary.
Excessive
engine
load
(lugging
engine).
Reduce
engine
load.
Engine
Runs
But
ivlisses
Hi
gh
tension
wire
l
oo
se
from
spark
plug
or
co
il.
Check
spark
plug
connection
and
install
wire
properly
in
coil.
Breaker
points
out
of
acijustment
or
wornall
cl
pitted.
Clean
and
adjust.
Replace
points
if
necessary.
Spark
plug
fouled
or
pitted,
incorrect
gap.
Clean
and
regap
plug.
Replace
plug
if
necessary.
Incorrect
spark
plug.
Install
proper
plug,