60
16. TROUBLESHOOTING
Trouble
Cause
Ba
tte
ry c
ha
rgin
g f
ailu
re
Sta
rte
r m
oto
r d
oe
sn
't w
ork
En
gin
e s
tar
t fa
ilu
re
En
gin
e s
tu
m
ble
o
r s
tall
Ro
ug
h id
lin
g
Id
lin
g r
ev
olu
tio
n is
to
o h
igh
Po
or
ac
ce
ler
atio
n
En
gin
e o
ve
r-r
ev
olu
tio
n
En
gin
e o
ve
rh
ea
t
En
gin
e s
eiz
ing
Va
cu
um
p
re
ssu
re
d
efe
ctiv
e
Air
le
ak
ing
W
ate
r s
uc
tio
n f
ailu
re
Ins
uff
icie
nt
wa
te
r
dis
ch
arg
e
Flo
od
lig
ht,
G
au
ge
la
m
p, H
ou
r m
ete
r,
W
arn
ing
la
m
p d
o
no
t w
ork
W
arn
ing
la
m
p f
las
hin
g
Action
Ca
us
ed
b
y S
uc
tio
n
Ca
us
ed
b
y P
um
p u
nit
Ca
us
ed
b
y P
lay
pip
e
Ca
us
ed
b
y E
ng
ine
u
nit
Ele
ctr
ica
l
Starter motor
defective
●
Check the
terminals, cords
and screws. If
necessary,
replace part.
Control panel
defective
● ●
●
Check input of
starter solenoid.
(Equal to control
panel output.)
Replace parts if
necessary.
Co
m
pr
es
sio
n
Piston, piston
ring or
cylinder
excessively
worn.
● ● ●
●
●
●
Correct or
replace.
Carbon
deposition in
combustion
chamber
●
● ●
●
Clean out.
Su
ctio
n
Suction height
too high or
length too
long
●
Make it pump
location to
nearer and lower
position.
Suction hose
end is not in
water
● ● ● ●
Put the end of
suction hose
below 30cm of
the water
surface.
Suction hose
coupling loose
or gasket
defective
● ● ● ●
Clean out a
gasket and
tighten securely.
Replace a gasket
if necessary.
