Yamaha YZ85Y Owner's Manual page 52

PERIODIC MAINTENANCE AND ADJUSTMENT
G
Be sure the valve stem is posi-
tioned straight. A tilted valve
stem indicates that the tire has
slipped from its original posi-
tion on the rim. Rotate the tire
so that the valve stem is posi-
tioned straight.
If the center tread depth reaches the
specified limit, if the tire has a nail or
glass fragments in it, or if the sidewall is
cracked, have a Yamaha dealer re-
place the tire immediately.
Minimum tire tread depth (front and
rear):
4.0 mm (0.16 in)
7
Tire information
This motorcycle is equipped with spoke
wheels and tube tires.
WARNING
The front and rear tires should be of
the same make and design, other-
wise the handling characteristics of
the vehicle may be different, which
could lead to an accident.
After extensive tests, only the tires list-
ed below have been approved for this
model by Yamaha Motor Co., Ltd.
Front tire:
Size:
70/100-17 40M
Manufacturer/model:
DUNLOP/D739FA
Rear tire:
Size:
90/100-14 49M
Manufacturer/model:
DUNLOP/D756
WARNING
G
Have a Yamaha dealer replace
excessively worn tires. Operat-
ing the motorcycle with exces-
sively worn tires decreases
riding stability and can lead to
loss of control.
EWA10461
G
The replacement of all wheel-
and brake-related parts, includ-
ing the tires, should be left to a
Yamaha dealer, who has the
necessary professional knowl-
edge and experience.
EWA14390
7-16
G
It is not recommended to patch
a punctured tube. If unavoid-
able, however, patch the tube
very carefully and replace it as
soon as possible with a high-
quality product.