Yamaha WR450F Owner's Manual page 62

PERIODIC MAINTENANCE AND ADJUSTMENT
Tire inspection
1
2
3
4
1. Tire sidewall
2. Tire tread depth
5
The tires must be checked before each
ride. If the center tread depth reaches
6
the specified limit, if the tire has a nail or
glass fragments in it, or if the sidewall is
7
cracked, have a Yamaha dealer re-
place the tire immediately.
8
Minimum tire tread depth (front and
rear):
1.6 mm (0.06 in)
9
TIP
The tire tread depth limits may differ
from country to country. Always comply
with the local regulations.
Tire information
This motorcycle is equipped with spoke
wheels and tube tires.
Tires age, even if they have not been
used or have only been used occasion-
ally. Cracking of the tread and sidewall
rubber, sometimes accompanied by
carcass deformation, is an evidence of
ageing. Old and aged tires shall be
checked by tire specialists to ascertain
their suitability for further use.
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.
6-19
Front tire:
Size:
80/100-21M/C 51P
Manufacturer/model:
BRIDGESTONE/GRITTY-ED03 E
Rear tire:
Size:
120/90-18M/C 65P
Manufacturer/model:
BRIDGESTONE/GRITTY-ED04 E
WARNING
EWA10461

Have a Yamaha dealer replace
excessively worn tires. Besides
being illegal, operating the mo-
torcycle with excessively worn
tires decreases riding stability
and can lead to loss of control.

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.

It is not recommended to patch
a punctured tube. If unavoid-
able, however, patch the tube
very carefully and replace it as
soon as
EWA10571
possible with a