TOHATSU MFS 15E Series, Owner'S Manual

Page: 79 / 356

TROUBLESHOOTING
77
11
Compr
ession System
{ { { { {
Valve timing is not correct (Belt is stretched or installed incorrectly).
{ { { { {
Valve clearance is defective.
{ { { { {
Valve seat sealing is defective.
{ { { { {
Piston, piston ring and/or cylinder is worn excessively.
{ {
Combustion chamber car deposition is too much.
{ { { {
Spark plug is loose.
Others
{ {
*
{ { {
*
(Cooling water is lacking.) Pump is defective or clogged.
{
*
{ { {
*
Thermostat operation is defective.
{ { { { {
Anti-cavitation plate is damaged.
{ { { { { {
Use of mismatched propeller.
{ { { { { { {
Propeller is damaged or deformed.
{ { { { {
Thrust rod position is not correct.
{ { { { { {
Boat is unbalanced by load position.
{ { { { { {
Transom installation height is too high or too low.
{ { {
Throttle link adjustment is defective.
Engine will
not start.
En
gine st
alls imm
ed
iat
ely after star
tin
g.
Defective idling De
fe
ctive
ac
ce
leration
En
gine sp
eed is
ver
y
h
igh cau
s
in
g
high speed ESG to operate. Engine speed is
very low
, causing
low sp
ee
d ESG to
o
p
e
rat
e.
Boat cann
ot
r
un at hig
h speed.
Engine overheats. Bat
tery is no
t char
ged.
Starte
r
motor w
ill not
operate.
Power tilt
w
ill not operate.
W
a
rn
ing lamp is
li
t.
W
a
rn
ing lamp blinks.
Possible cause
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