Spoke Wheels - Yamaha WR 155 Owner's Manual

WARNING
 It is dangerous to ride with a
worn-out tire. When a tire tread
begins to show crosswise lines,
have a Yamaha dealer replace
the tire immediately.
 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 possible with a high-
quality product.
 Ride at moderate speeds after
changing a tire since the tire
surface must first be "broken
in" for it to develop its optimal
characteristics.
Tire information
This model is equipped with tube tires.
Periodic maintenance and adjustment
Tires age, even if they have not been
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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.
Front tire:
Size:
2.75-21 45P
Manufacturer/model:
IRC/TRAILS GP-21F
Rear tire:
Size:
4.10-18 59P
Manufacturer/model:
IRC/TRAILS GP-22R

Spoke wheels

To maximize the performance, durabil-
ity, and safe operation of your vehicle,
note the following points.
 Check each wheel for cracks, de-
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 Check the spokes for looseness. If
 Have the wheel balanced whenev-
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formation and other damage. If
any damage is found, have the
wheel inspected by your Yamaha
dealer. Do not attempt to repair or
straighten a bent or damaged
wheel.
any loose spokes are found, have
the wheel adjusted by your
Yamaha dealer. Improperly tight-
ened spokes can cause wheel
misalignment.
er the tire or tube has been re-
placed. An unbalanced wheel can
result in adverse handling charac-
teristics and shortened tire life.
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