PERIODIC MAINTENANCE AND ADJUSTMENT
7-39
7
En
g
ine overheatin
g
WARNING
EWA10401
Do not remove the ra
d
iator cap when the en
g
ine an
d
ra
d
iator are hot. Scal
d
in
g
hot flui
d
an
d
steam may
b
e
b
lown out un
d
er pressure, which coul
d
cause serious injury. Be sure to wait until the en
g
ine has coole
d
.
After removin
g
the ra
d
iator cap retainin
g
b
olt, place a thick ra
g
, like a towel, over the ra
d
iator cap, an
d
then
slowly rotate the cap counterclockwise to the
d
etent to allow any resi
d
ual pressure to escape. When the hiss-
in
g
soun
d
has stoppe
d
, press
d
own on the cap while turnin
g
it counterclockwise, an
d
then remove the cap.
TIP
If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended cool-
ant as soon as possible.
W
a
it
u
ntil the
engine h
as
cooled.
Check the cool
a
nt level in the
re
s
ervoir
a
nd r
a
di
a
tor.
The cool
a
nt level
i
s
OK.
The cool
a
nt level i
s
low.
Check the cooling
s
y
s
tem
for le
a
k
a
ge.
H
a
ve
a
Y
a
m
a
h
a
de
a
ler check
a
nd rep
a
ir the cooling
s
y
s
tem.
Add cool
a
nt. (See TIP.)
St
a
rt the engine. If the engine overhe
a
t
s
a
g
a
in,
h
a
ve
a
Y
a
m
a
h
a
de
a
ler check
a
nd rep
a
ir the cooling
s
y
s
tem.
There i
s
le
a
k
a
ge.
There i
s
no le
a
k
a
ge.
UB15E1E0.book Page 39 Tuesday, July 18, 2017 10:42 AM
