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2. Check:
• Tire surfaces
Damage/wear → Replace the tire.
EWA13190
WARNING
It is dangerous to ride with a worn-out tire.
When the tire tread reaches the wear limit,
replace the tire immediately.
1. Tire tread depth
2. Side wall
3. Wear indicator
Wear limit (front)
1.0 mm (0.04 in)
Wear limit (rear)
1.0 mm (0.04 in)
EWA14090
WARNING
After extensive tests, the tires listed below
have been approved by Yamaha Motor Co.,
Ltd. for this model. The front and rear tires
should always be by the same manufac-
turer and of the same design. No guarantee
concerning handling characteristics can be
given if a tire combination other than one
approved by Yamaha is used on this vehi-
cle.
Front tire
Size
120/70 ZR17M/C (58W)
Manufacturer/model
BRIDGESTONE/BT021F BB
Rear tire
Size
180/55 ZR17M/C (73W)
Manufacturer/model
BRIDGESTONE/BT021R BB
PERIODIC MAINTENANCE
EWA13210
WARNING
New tires have a relatively low grip on the
road surface until they have been slightly
worn. Therefore, approximately 100 km
should be traveled at normal speed before
any high-speed riding is done.
TIP
For tires with a direction of rotation mark "1":
• Install the tire with the mark pointing in the
direction of wheel rotation.
• Align the mark "2" with the valve installation
point.
EAS39P1308
CHECKING THE WHEEL BEARINGS
The following procedure applies to all of the
wheel bearings.
1. Check:
• Wheel bearings
Refer to "CHECKING THE FRONT
WHEEL" on page 4-7 and "CHECKING
THE REAR WHEEL" on page 4-14.
EAS39P1309
CHECKING THE SWINGARM OPERATION
1. Check:
• Swingarm operation
Swingarm not working properly → Check
the swingarm.
Refer to "SWINGARM" on page 4-66.
2. Check:
• Swingarm excessive play
Refer to "SWINGARM" on page 4-66.
EAS21390
ADJUSTING THE DRIVE CHAIN SLACK
ECA13550
A drive chain that is too tight will overload
the engine and other vital parts, and one
that is too loose can skip and damage the
swingarm or cause an accident. Therefore,
3-18
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