Yamaha YZ65J, Owner'S Manual

Page: 81 / 90

Perio d ic maintenance an d a d justment
7-32
7
En g ine overheatin g
WARNING
EWAT1041

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 .

Place a thick ra g , like a towel, over the ra d iator cap, an d then slowly ro-
tate the cap counterclockwise to the d etent to allow any resi d ual pres-
sure to escape. When the hissin 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 coolant as soon as possible.
W ait u ntil the engine
has cooled.
Add coolant.
(See TIP.)
The coolant le v el is
OK.
Check the coolant
le
v el in the radiator.
There is no leakage.
There is leakage.
The coolant le v el is
lo w .
Check the cooling
system for leakage.
Ha v e a Yamaha
dealer check and
repair the cooling
system.
Start the engine. If the engine o v erheats again,
ha v e a Yamaha dealer check and repair the cooling
system.
UBR880E0.book Page 32 Friday, February 16, 2018 8:32 AM