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PERIODIC MAINTENANCE AND MINOR REPAIR
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1a
Tire inspection
The tires must be checked before
each ride. If the center tread depth
reaches the specified limit, if the tire
has a nail or glass fragments in it, or
if the side wall is cracked, have a
Yamaha dealer replace the tire imme-
diately.NOTE:
The tire tread depth limits may differ
from country to country. Always com-
ply with the local regulations.1. Tire sidewall
a. Tire tread depth
EW000079
w8Have a Yamaha dealer replace
excessively worn tires.
Besides being illegal, operat-
ing the scooter with exces-
sively worn tires decreases
riding stability and can lead to
loss of control.
8The replacement of all wheel-
and brake-related parts,
including the tires, should be
left to a Yamaha dealer, who
has the necessary profession-
al knowledge and experience.
Tire information
This scooter is equipped with cast
wheel and tubeless tires.
EW000078
w8The front and rear tires should
be of the same make and
design, otherwise the handling
characteristics of the scooter
cannot be guaranteed.
8After extensive tests, only the
tires listed below have been
approved for this model by
Yamaha Motor Co., Ltd.
Minimum tire tread depth
(front and rear)1.6 mm
FRONT
Manufacturer Size Model
DUNLOP 120/70-14M/C 55S D305FABRIDGESTONE
120/70-14M/C 55S HOOP B03
REAR
Manufacturer Size Model
DUNLOP 150/70-14M/C 66S D305
BRIDGESTONE
150/70-14M/C 66S HOOP B02
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8-2
SPECIFICATIONS
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Radiator capacity
(including all routes)1.5 L
Air filterDry element
Fuel
Type Regular unleaded gasoline
Fuel tank capacity 14 L
Carburetor
Manufacturer MIKUNI
Model × quantity BS30 × 2
Spark plug
Manufacturer/model × quantity NGK / CR7E × 2
Spark plug gap 0.7–0.8 mm
Clutch typeWet, multiple-disc automatic
Transmission
Primary reduction system Helical gear/spur gear
Primary reduction ratio 52/32 ×36/22 (2.659)
Secondary reduction system Chain drive
Secondary reduction ratio 41/25 ×40/29 (2.262)
Transmission type V-belt automatic
Operation Centrifugal automatic clutchChassis
Frame type Diamond
Caster angle 28°
Trail 95 mm
Tires
Front
Type Tubeless
Size 120/70-14M/C 55S
Manufacturer/ DUNLOP / D305FA
model BRIDGESTONE / HOOP B03
Rear
Type Tubeless
Size 150/70-14M/C 66S
Manufacturer/ DUNLOP / D305
model BRIDGESTONE / HOOP B02
Maximum load* 183 kg
Air pressure (cold tire)
up to 90 kg load*
Front 200 kPa (2.00 kg/cm
2, 2.00 bar)
Rear 225 kPa (2.25 kg/cm2, 2.25 bar)
90 kg load–maximum
load*
Front 225 kPa (2.25 kg/cm2, 2.25 bar)
Rear 250 kPa (2.50 kg/cm2, 2.50 bar)
5GJ-9-EV 5/26/01 11:04 AM Page 89
