Page 11 of 92

1
SAFETY INFORMATION
1-4
Aftermarket Parts, Accessories,
and Modifications
While you may find aftermarket pro-
ducts similar in design and quality to
genuine Yamaha accessories, recog-
nize that some aftermarket accesso-
ries or modifications are not suitable
because of potential safety hazards to
you or others. Installing aftermarket
products or having other modifica-
tions performed to your vehicle that
change any of the vehicle’s design or
operation characteristics can put you
and others at greater risk of serious
injury or death. You are responsible
for injuries related to changes in the
vehicle.
Keep the following guidelines in mind,
as well as those provided under “Loa-
ding” when mounting accessories.
●Never install accessories or carry
cargo that would impair the per-
formance of your scooter. Care-
fully inspect the accessory befo-
re using it to make sure that it
does not in any way reduce
ground clearance or cornering
clearance, limit suspension tra-
vel, steering travel or control ope-ration, or obscure lights or reflec-
tors.
• Accessories fitted to the hand-
lebar or the front fork area can
create instability due to impro-
per weight distribution or
aerodynamic changes. If
accessories are added to the
handlebar or front fork area,
they must be as lightweight as
possible and should be kept to
a minimum.
• Bulky or large accessories may
seriously affect the stability of
the scooter due to aerodyna-
mic effects. Wind may attempt
to lift the scooter, or the scoo-
ter may become unstable in
cross winds. These accesso-
ries may also cause instability
when passing or being passed
by large vehicles.
• Certain accessories can dis-
place the operator from his or
her normal riding position. This
improper position limits the fre-
edom of movement of the ope-
rator and may limit control abi-
lity, therefore, suchaccessories are not recom-
mended.
●Use caution when adding electri-
cal accessories. If electrical
accessories exceed the capacity
of the scooter’s electrical system,
an electric failure could result,
which could cause a dangerous
loss of lights or engine power.
Aftermarket Tires and Rims
The tires and rims that came with your
scooter were designed to match the
performance capabilities and to pro-
vide the best combination of hand-
ling, braking, and comfort. Other tires,
rims, sizes, and combinations may
not be appropriate. Refer to page
6-16 for tire specifications and more
information on replacing your tires.
1B9-F8199-E3.QXD 21/10/08 13:42 Página 11
Page 59 of 92

●The tire air pressure must be
adjusted in accordance with
the riding speed and with the
total weight of rider, passenger,
cargo, and accessories appro-
ved for this model.EWA14660
s s
WARNING
Because loading has an enormous
impact on the handling, braking,
performance and safety characte-
ristics of your vehicle, you should
keep the following precautions in
mind.
●NEVER OVERLOAD THE VEHI-
CLE! Operation of an overloa-
ded vehicle may result in tire
damage, loss of control, or
severe injury. Make sure that
the total weight of rider, pas-
senger, cargo, and accessories
does not exceed the specified
maximum load for the vehicle.
●Do not carry along loosely pac-
ked items, which can shift
during a ride.
●Securely pack the heaviest
items close to the center of the
vehicle and distribute the
weight evenly on both sides.
●Adjust the suspension and tire air
pressure with regard to the load.
●Check the tire condition and air
pressure before each ride.
Tire inspection
1. Tire tread depth
2. Tire sidewall
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 sidewall is cracked, have a Yama-
ha dealer replace the tire immediately.
Minimum tire tread depth (front
and rear):
1.6 mm (0.06 in)
1
2
ZAUM0054
Tire air pressure (measured on
cold tires):
Up to 90 kg (198 lb):
Front:
190 kPa (27.02 psi) (1.9
kgf/cm
2)
Rear:
220 kPa (31.29 psi) (2.2
kgf/cm
2)
90 kg (198 lb) to maximum load:
Front:
210 kPa (29.86 psi) (2.1
kgf/cm
2)
Rear:
250 kPa (35.55 psi) (2.5
kgf/cm
2)
Maximum load*:
189 kg (417 lb)
* Total weight of rider, passenger,
cargo and accessories
PERIODIC MAINTENANCE AND ADJUSTMENT
6-17
6
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Page 82 of 92

Chassis:Frame type:
Steel tube underbone
Caster angle:
28.00 degree
Trail:
100.0 mm (3.94 in)
Front tire:Type:
Tubeless
Size:
120/70-15 M/C 56S(Michelin -
Continental)
120/70-15 M/C 56P(Pirelli)
Manufacturer/model:
Michelin/GoldStandard
Manufacturer/model:
Continental/ContiTwist TL
Manufacturer/model:
Pirelli/GTS23
Rear tire:Type:
Tubeless
Size:
140/70-14 M/C 68S(Michelin -
Continental)
140/70-14 M/C 68P(Pirelli)
Manufacturer/model:
Michelin/GoldStandard
Manufacturer/model:
Continental/ContiTwist TL
Manufacturer/model:
Pirelli/GTS24
Loading:Maximum load:
189 kg (417 lb)
(Total weight of rider, passenger, cargo
and accessories)
Tire air pressure (measured on cold
tires):
Loading condition:
0-90 kg
Front:
190 kPa (28 psi) (1.90 kgf/cm
2) (1.90 bar)
Rear:
220 kPa (32 psi) (2.20 kgf/cm
2) (2.20 bar)
Loading condition:
90 kg - maximum load
Front:
210 kPa (30 psi) (2.10 kgf/cm
2) (2.10 bar)
Rear:
250 kPa (36 psi) (2.50 kgf/cm
2) (2.50 bar)
High-speed riding:
Front:
210 kPa (30 psi) (2.10 kgf/cm
2) (2.10 bar)
Rear:
250 kPa (36 psi) (2.50 kgf/cm
2) (2.50 bar)
Front wheel:Wheel type:
Cast wheel
Rim size:
15 x MT3.5
Rear wheel:Wheel type:
Cast wheel
Rim size:
14 x MT3.75
Front brake:Type:
Single disc brake
Operation:
Right hand operation
Recommended fluid:
DOT 4
Rear brake:Type:
Single disc brake
Operation:
Left hand operation
Recommended fluid:
DOT 4
Front suspension:Type:
Telescopic fork
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
94.0 mm (3.70 in)
Rear suspension:Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
83.0 mm (3.27 in)
Electrical system:Ignition system:
Transistorized coil ignition (digital)
Charging system:
AC magneto
Battery:Model:
YTX9-BS
SPECIFICATIONS
8-2
8
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