61
TROUBLESHOOTING
Typical causes of engine troubles are listed in the following tables.
Trouble
Cause
B
att
e
ry
c
h
ar
gin
g f
ail
u
re
S
ta
rte
r m
o
to
r d
o
es
n
ot
w
o
rk
E
ng
in
e s
ta
rt
fa
ilu
re
E
ng
in
e s
tu
m
ble
o
r s
ta
ll
R
ou
gh
id
lin
g
Id
lin
g i
s t
oo
h
ig
h
P
oo
r a
cc
ele
ra
tio
n
E
ng
in
e o
ve
r-r
ev
.
E
ng
in
e o
ve
r h
ea
t
E
ng
in
e s
eiz
in
g
V
ac
uu
m
p
re
ss
u
re
d
ef
ec
tiv
e
A
ir l
ea
kin
g
W
ate
r s
uc
tio
n
fa
ilu
re
In
su
ffic
ie
nt
w
ate
r d
is
ch
a
rg
e
F
lo
o
dli
g
ht,
G
a
ug
e l
a
m
p,
H
o
ur
m
ete
r,
W
ar
nin
g l
am
p
do
n
o
t w
o
rk
W
ar
nin
g l
am
p f
la
sh
in
g
Action
C
au
se
d b
y s
uc
tio
n
C
au
se
d b
y p
um
p u
nit
C
au
se
d b
y p
la
yp
ip
e
C
au
se
d b
y e
ng
in
e u
nit
F
u
el
an
d
lu
b
ric
a
tio
n
Fuel shortage
●
●
●
●
Refuel.
Deterioration
of fuel
●
●
●
●
●
●
Replace with new
fuel.
Fuel tank air
vent clogging
●
●
●
●
●
●
Clean the air vent.
Fuel filter
clogging
●
●
●
●
●
●
Clean the filter.
Fuel pump failure
●
●
●
●
●
●
Replace.
Injector failure
●
●
●
●
●
●
Replace.
Fuel pipe kink or
snap
●
●
●
●
●
●
Fix routing of the
pipe.
Throttle dial at
other than “ ”
position
●
Set the dial to “ ”
position.
Oil filter clogging
●
●
●
●
Replace the oil filter.
(Do not fill it up with
the different brand of
oil.)
16
