Periodic maintenance an d a djustment
7-15
7 After extensive tests, only the tires list-
ed below have been approved for this
model by Yamaha.
WARNING
EWA15542
Have a Yamaha dealer replace
excessively worn tires. Operat-
in g the motorcycle with exces-
sively worn tires decreases
ri din g sta bility an d can lead to
loss of control.
The replacement of all wheel-
and b rake-relate d parts, inclu d-
in g the tires, shoul d b e left to a
Yamaha dealer, who has the
necessary professional knowl-
e dge an d experience.
It is not recommen ded to patch
a punctured tube. If unavoi d-
a b le, however, patch the tu be
very carefully an d replace it as
soon as possi ble with a hi gh-
quality pro duct.
Ride conservatively after
chan gin g a tire since the tire
must seat itself on the rim prop-
erly. Failure to allow proper
seatin g may cause tire failure, which may result in
damag e to
the motorcycle an d injury to the
ri der.
Front tire:
Size:2.50-10 4PR
Manufacturer/model:
BRIDGESTONE/M29
IRC/Z MARK II (PW50_ZAF,
PW50G, PW50G2)
Rear tire: Size:2.50-10 4PR
Manufacturer/model: BRIDGESTONE/M29
IRC/Z MARK II (PW50_ZAF,
PW50G, PW50G2)
U2SA82E0.book Page 15 Monday, June 8, 2015 1:09 PM
Specifications
9-2
9
Clutch:
Clutch type:Wet, centrifugal, shoe
Drivetrain:
Primary reduction ratio:1.909 (63/33)
Final drive: Shaft
Secondary reduction ratio:
6.218 (19/15 x 54/11)
Chassis:
Frame type:Backbone
Caster angle:
25.50 °
Trail:
50 mm (2.0 in)
Front tire:
Type:With tube
Size:
2.50-10 4PR
Manufacturer/model: BRIDGESTONE/M29
Manufacturer/model: IRC/Z MARK II (PW50_ZAF, PW50G,
PW50G2)
Speed rating: 100 km/h (62 mph)
Rear tire:
Type:With tube
Size: 2.50-10 4PR
Manufacturer/model:
BRIDGESTONE/M29
Manufacturer/model: IRC/Z MARK II (PW50_ZAF, PW50G,
PW50G2)
Speed rating: 100 km/h (62 mph)
Loa din g:
Maximum rider weight:
25.0 kg (55 lb)
Tire air pressure (measure d on col d
tires):
Front:
100 kPa (1.00 kgf/cm², 15 psi)
Rear: 100 kPa (1.00 kgf/cm², 15 psi)
Front wheel:
Wheel type:Panel wheel
Rim size:
10x1.50
Rear wheel:
Wheel type:Panel wheel
Rim size:
10x1.50
Front brake:
Type:
Mechanical leading trailing drum brake
Rear brake:
Type:
Mechanical leading trailing drum brake
Front suspension:
Type:Telescopic fork
Spring:
Coil spring
Shock absorber: Hydraulic damper
Wheel travel: 60 mm (2.4 in)
Rear suspension:
Type:Unit swing
Spring: Coil spring
Shock absorber:
Hydraulic damper
Wheel travel: 50 mm (2.0 in)
Electrical system:
Ignition system:
CDI
U2SA82E0.book Page 2 Monday, June 8, 2015 1:09 PM
