Page 27 of 66
FOR YOUR SAFETY – PRE-OPERATION CHECKS
4-2
4
Throttle grip Make sure that operation is smooth.
Check throttle grip free play.
If necessary, have Yamaha dealer adjust throttle grip free play and lubricate cable
and grip housing.6-10, 6-16
Wheels and tires Check for damage.
Check tire condition and tread depth.
Check air pressure.
Correct if necessary.6-10, 6-12
Brake levers Make sure that operation is smooth.
Lubricate lever pivoting points if necessary.6-16
Centerstand Make sure that operation is smooth.
Lubricate pivot if necessary.6-17
Chassis fasteners Make sure that all nuts, bolts and screws are properly tightened.
Tighten if necessary.—
Instruments, lights, signals
and switches Check operation.
Correct if necessary.—
Battery Check fluid level.
Fill with distilled water if necessary.6-19 ITEM CHECKS PAGE
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Page 35 of 66

PERIODIC MAINTENANCE AND ADJUSTMENT
6-3
6
EAU17718
General maintenance and lubrication chart NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING
ANNUAL
CHECK 1000 km
(600 mi)6000 km
(3500 mi)12000 km
(7000 mi)18000 km
(10500 mi)24000 km
(14000 mi)
1 Air filter element Clean.√√
Replace.√√
2*Battery Check electrolyte level and specif-
ic gravity.
Make sure that the breather hose
is properly routed.√√√√√
3*Front brake Check operation, fluid level and
vehicle for fluid leakage.√√√√√√
Replace brake pads. Whenever worn to the limit
4*Rear brake Check operation and adjust brake
lever free play.√√√√√√
Replace brake shoes. Whenever worn to the limit
5*Brake hose Check for cracks or damage.
Check for correct routing and
clamping.√√√√√
Replace. Every 4 years
6*Wheels Check runout and for damage.√√√√
7*Tires Check tread depth and for dam-
age.
Replace if necessary.
Check air pressure.
Correct if necessary.√√√√√
8*Wheel bearings Check bearing for looseness or
damage.√√√√
U1S0E1E0.book Page 3 Wednesday, November 7, 2012 3:32 PM
Page 42 of 66

PERIODIC MAINTENANCE AND ADJUSTMENT
6-10
6
EAU21300
Adjusting the carburetor The carburetor is an important part of
the engine and requires very sophisti-
cated adjustment. Therefore, all carbu-
retor adjustments should be left to a
Yamaha dealer, who has the neces-
sary professional knowledge and expe-
rience.
EAU21384
Checking the throttle grip free
play The throttle grip free play should mea-
sure 1.5–3.0 mm (0.06–0.12 in) at the
inner edge of the throttle grip. Periodi-
cally check the throttle grip free play
and, if necessary, have a Yamaha deal-
er adjust it.
EAU21876
Tires Tires are the only contact between the
vehicle and the road. Safety in all con-
ditions of riding depends on a relatively
small area of road contact. Therefore, it
is essential to maintain the tires in good
condition at all times and replace them
at the appropriate time with the speci-
fied tires.
Tire air pressure
The tire air pressure should be checked
and, if necessary, adjusted before each
ride.
1. Throttle grip free play1ZAUM0051
ZAUM0053
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Page 43 of 66

PERIODIC MAINTENANCE AND ADJUSTMENT
6-11
6
WARNING
EWA10503
Operation of this vehicle with im-
proper tire pressure may cause se-
vere injury or death from loss of
control.●
The tire air pressure must be
checked and adjusted on cold
tires (i.e., when the temperature
of the tires equals the ambient
temperature).
●
The tire air pressure must be ad-
justed in accordance with the
riding speed and with the total
weight of rider, passenger, car-
go, and accessories approved
for this model.
WARNING
EWA10511
Never overload your vehicle. Opera-
tion of an overloaded vehicle could
cause an accident.
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 sidewall is
cracked, have a Yamaha dealer re-
place the tire immediately.TIPThe tire tread depth limits may differ
from country to country. Always comply
with the local regulations.
Tire air pressure (measured on cold
tires):
0–90 kg (0–198 lb):
Fr o nt :
150 kPa (1.50 kgf/cm², 22 psi)
Rear:
160 kPa (1.60 kgf/cm², 23 psi)
90–184 kg (198–406 lb):
Fr o nt :
150 kPa (1.50 kgf/cm², 22 psi)
Rear:
160 kPa (1.60 kgf/cm², 23 psi)
Maximum load*:
184 kg (406 lb)
* Total weight of rider, passenger, car-
go and accessories
1. Tire tread depth
2. Tire sidewall
Minimum tire tread depth (front and
rear):
1.6 mm (0.06 in)
1
2
ZAUM0054
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Page 60 of 66

SCOOTER CARE AND STORAGE
7-4
72. Drain the carburetor float chamber
by loosening the drain bolt; this will
prevent fuel deposits from building
up. Pour the drained fuel into the
fuel tank.
3. Fill up the fuel tank and add fuel
stabilizer (if available) to prevent
the fuel tank from rusting and the
fuel from deteriorating.
4. Perform the following steps to pro-
tect the cylinder, piston rings, etc.
from corrosion.
a. Remove the spark plug cap
and spark plug.
b. Pour a teaspoonful of engine oil
into the spark plug bore.
c. Install the spark plug cap onto
the spark plug, and then place
the spark plug on the cylinder
head so that the electrodes are
grounded. (This will limit spark-
ing during the next step.)
d. Turn the engine over several
times with the starter. (This will
coat the cylinder wall with oil.)
WARNING! To prevent dam-
age or injury from sparking,
make sure to ground thespark plug electrodes while
turning the engine over.
[EWA10951]
e. Remove the spark plug cap
from the spark plug, and then
install the spark plug and the
spark plug cap.
5. Lubricate all control cables and the
pivoting points of all levers and
pedals as well as of the side-
stand/centerstand.
6. Check and, if necessary, correct
the tire air pressure, and then lift
the scooter so that both of its
wheels are off the ground. Alterna-
tively, turn the wheels a little every
month in order to prevent the tires
from becoming degraded in one
spot.
7. Cover the muffler outlet with a
plastic bag to prevent moisture
from entering it.
8. Remove the battery and fully
charge it. Store it in a cool, dry
place and charge it once a month.
Do not store the battery in an ex-
cessively cold or warm place [less
than 0 °C (30 °F) or more than 30°C (90 °F)]. For more information
on storing the battery, see page
6-19.
TIPMake any necessary repairs before
storing the scooter.
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Page 62 of 66

SPECIFICATIONS
8-2
8
Loading:Maximum load:
184 kg (406 lb)
(Total weight of rider, passenger, cargo and
accessories)Tire air pressure (measured on cold
tires):Loading condition:
0–90 kg (0–198 lb)
Front:
150 kPa (1.50 kgf/cm², 22 psi)
Rear:
160 kPa (1.60 kgf/cm², 23 psi)
Loading condition:
90–184 kg (198–406 lb)
Front:
150 kPa (1.50 kgf/cm², 22 psi)
Rear:
160 kPa (1.60 kgf/cm², 23 psi)Front wheel:Wheel type:
Cast wheel
Rim size:
12xMT3.50Rear wheel:Wheel type:
Cast wheel
Rim size:
12xMT3.50Front brake:Type:
Single disc brake
Operation:
Right hand operationSpecified brake fluid:
DOT 3 or 4
Rear brake:Type:
Drum brake
Operation:
Left hand operationFront suspension:Type:
Telescopic fork
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
120.0 mm (4.72 in)Rear suspension:Type:
Unit swing
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
100.0 mm (3.94 in)Electrical system:Ignition system:
DC CDI
Charging system:
AC magnetoBattery:Model:
CB4L-B (GS), YB4L-B (YUASA)
Voltage, capacity:
12 V, 4.0 AhHeadlight:Bulb type:
Incandescence
Bulb voltage, wattage × quantity:Headlight:
12 V, 35.0 W/35.0 W × 1
Tail/brake light:
12 V, 5.0 W/21.0 W × 1
Front turn signal light:
12 V, 10.0 W × 2
Rear turn signal light:
12 V, 10.0 W × 2
Meter lighting:
LED
High beam indicator light:
LED
Oil level warning light:
LED
Turn signal indicator light:
LED
Fuel level warning light:
LEDFuses:Main fuse:
7.5 A
U1S0E1E0.book Page 2 Wednesday, November 7, 2012 3:32 PM