Page 57 of 92
PERIODIC MAINTENANCE AND MINOR REPAIR
6-16
2
3
4
5
67
8
9
WARNING
EWA11310
Make sure that no foreign mate-
rial enters the final transmission
case.
Make sure that no oil gets on the
tire or wheel.
7. Check the final transmission case
for oil leakage. If oil is leaking,
check for the cause.
EAU20070
Coolant
The coolant level should be checked
before each ride. In addition, the cool-
ant must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.
EAU34191
To check the coolant level
1. Place the vehicle on a level sur-
face and hold it in an upright posi-
tion.
NOTE:
The coolant level must be checked
on a cold engine since the level
varies with engine temperature.
Make sure that the vehicle is posi-
tioned straight up when checking
the coolant level. A slight tilt to the
side can result in a false reading.
2. Pull up the right floorboard mat as
shown.3. Remove the coolant reservoir cov-
er by removing the screw.
4. Check the coolant level in the cool-
ant reservoir. Recommended final transmis-
sion oil:
See page 8-1.
Oil quantity:
0.25 L (0.26 US qt)
(0.22 Imp.qt)
1. Right floorboard mat
1. Screw
2. Coolant reservoir cover
1
1
2
Page 58 of 92
PERIODIC MAINTENANCE AND MINOR REPAIR
6-17
1
2
3
4
5
6
7
8
9
NOTE:
The coolant should be between the
minimum and maximum level marks.
5. If the coolant is at or below the
minimum level mark, open the
coolant reservoir cap, add coolant
to the maximum level mark, and
then close the coolant reservoir
cap.
CAUTION:
ECA10470
If coolant is not available, use
distilled water or soft tap water
instead. Do not use hard water
or salt water since it is harmful
to the engine.
If water has been used instead
of coolant, replace it with cool-
ant as soon as possible, other-
wise the engine may not be
sufficiently cooled and the cool-
ing system will not be protected
against frost and corrosion.
If water has been added to the
coolant, have a Yamaha dealer
check the antifreeze content of
the coolant as soon as possible,
otherwise the effectiveness of
the coolant will be reduced.
WARNING
EWA10380
Never attempt to remove the radiator
cap when the engine is hot.
6. Install the coolant reservoir cover
by installing the screw.
7. Place the right floorboard mat in
the original position.
NOTE:
The radiator fan is automatically
switched on or off according to the
coolant temperature in the radia-
tor.
If the engine overheats, see page
6-37 for further instructions.
1. Minimum level mark
2. Maximum level mark
3. Coolant reservoir cap
1
2
3
Coolant reservoir capacity (up to
the maximum level mark):
0.32 L (0.34 US qt)
(0.28 Imp.qt)
Page 59 of 92
PERIODIC MAINTENANCE AND MINOR REPAIR
6-18
2
3
4
5
67
8
9
EAU34203
Air filter elements and check
hoses and V-belt case air filter
element
The air filter elements and the V-belt
case air filter element should be ser-
viced at the intervals specified in the
periodic maintenance and lubrication
chart. Service all air filter elements
more frequently if you are riding in un-
usually wet or dusty areas.
Replacing the air filter elements
1. Place the scooter on the center-
stand.
NOTE:
Continue as follows for each air filter el-
ement.
2. Remove the air filter case cover by
removing the rubber cap and
screws.
Left
Right
3. Pull the air filter element out.
Left
Right
4. Insert a new air filter element into
the air filter case.
5. Install the air filter case cover by in-
stalling the screws.
6. Install the rubber cap.
1. Screw
2. Air filter case cover
3. Rubber cap
1. Screw
2. Air filter case cover
3. Rubber cap
1(×6)
21
13
3
1(×5)
1
23
1. Air filter element
1. Air filter element
1
1
Page 60 of 92
PERIODIC MAINTENANCE AND MINOR REPAIR
6-19
1
2
3
4
5
6
7
8
9
CAUTION:
ECA12922
Make sure that each filter ele-
ment is properly seated in its
case.
Always replace both air filter el-
ements at the same time, other-
wise poor engine performance
or damage to the engine may re-
sult.
The engine should never be op-
erated without the filter ele-
ments installed, otherwise the
piston(s) and/or cylinder(s) may
become excessively worn.
To clean the air filter check hoses
1. Check the hose at the bottom of
both air filter cases for accumulat-
ed dirt or water.
Left
Right
2. If dirt or water is visible, remove
the hose, clean it, and then install
it.
Cleaning the V-belt case air filter el-
ement
1. Remove cowling E. (See
page 6-6.)
2. Remove panel B. (See page 6-6.)
3. Remove the V-belt air filter case
cover by removing the screws.
4. Remove the V-belt case air filter
element by removing the screws.
1. Air filter check hose
1. Air filter check hose
1
1
1. Screw
2. V-belt air filter case cover
2
11(×5)1
Page 61 of 92
PERIODIC MAINTENANCE AND MINOR REPAIR
6-20
2
3
4
5
67
8
9
5. Lightly tap the V-belt case air filter
element to remove most of the
dust and dirt, and then blow out the
dirt with compressed air as shown.
6. Check the V-belt case air filter ele-
ment for damage and replace it ifnecessary.
7. Install the V-belt case air filter ele-
ment by installing the screws.
8. Install the V-belt air filter case cov-
er by installing the screws.
CAUTION:
ECA12940
Make sure that the V-belt filter ele-
ment is properly seated in its case.
9. Install the panel.
10. Install the cowling.
EAU21380
Adjusting the throttle cable
free play
The throttle cable free play should mea-
sure 3.0–5.0 mm (0.12–0.20 in) at the
throttle grip. Periodically check the
throttle cable free play and, if neces-
sary, have a Yamaha dealer adjust it.
1. Screw
2. V-belt case air filter element
2
1
(×4)1
1. Throttle cable free play
1
Page 62 of 92
PERIODIC MAINTENANCE AND MINOR REPAIR
6-21
1
2
3
4
5
6
7
8
9
EAU21400
Adjusting the valve clearance
The valve clearance changes with use,
resulting in improper air-fuel mixture
and/or engine noise. To prevent this
from occurring, the valve clearance
must be adjusted by a Yamaha dealer
at the intervals specified in the periodic
maintenance and lubrication chart.
EAU33600
Tires
To maximize the performance, durabil-
ity, and safe operation of your vehicle,
note the following points regarding the
specified tires.
Tire air pressure
The tire air pressure should be checked
and, if necessary, adjusted before each
ride.
WARNING
EWA10500
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
EWA11200
Because loading has an enormous
impact on the handling, braking,
performance and safety characteris-
tics of your vehicle, you should keep
the following precautions in mind.
NEVER OVERLOAD THE VEHI-
CLE! Operation of an overload-
ed vehicle may result in tire Tire air pressure (measured on
cold tires):
0–90 kg (0–198 lb) :
Front:
200 kPa (29 psi) (2.00 kgf/cm
2
)
Rear:
250 kPa (36 psi) (2.50 kgf/cm
2
)
90–198 kg (198–437 lb) :
Front:
200 kPa (29 psi) (2.00 kgf/cm
2
)
Rear:
250 kPa (36 psi) (2.50 kgf/cm
2
)
Maximum load*:
198 kg (437 lb)
* Total weight of rider, passenger,
cargo and accessories
Page 63 of 92
PERIODIC MAINTENANCE AND MINOR REPAIR
6-22
2
3
4
5
67
8
9 damage, loss of control, or se-
vere injury. Make sure that the
total weight of rider, passenger,
cargo, and accessories does
not exceed the specified maxi-
mum load for the vehicle.
Do not carry along loosely
packed 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 tire air pressure with
regard to the load.
Check the tire condition and air
pressure before each ride.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.
NOTE:
The tire tread depth limits may differ
from country to country. Always comply
with the local regulations.
Tire information
This model is equipped with tubeless
tires.
WARNING
EWA10470
Have a Yamaha dealer replace
excessively worn tires. Besides
being illegal, operating the vehi-
cle with excessively worn tires
decreases riding stability and
can lead to loss of control.
The replacement of all wheel
and brake related parts, includ-
ing the tires, should be left to a
1. Tire sidewall
2. Tire tread depth
Minimum tire tread depth (front
and rear):
1.6 mm (0.06 in)12
Front tire:
Size:
120/80-14M/C 58S
Manufacturer/model:
IRC/MB67
DUNLOP/D305FL
Rear tire:
Size:
150/70-13M/C 64S
Manufacturer/model:
IRC/MB67
DUNLOP/D305L
Page 64 of 92
PERIODIC MAINTENANCE AND MINOR REPAIR
6-23
1
2
3
4
5
6
7
8
9Yamaha dealer, who has the
necessary professional knowl-
edge and experience.
EAU21990
Cast wheels
To maximize the performance, durabil-
ity, and safe operation of your motorcy-
cle, note the following points regarding
the specified wheels.
The wheel rims should be checked
for cracks, bends, warpage or
damage before each ride. If any
damage is found, have a Yamaha
dealer replace the wheel. Do not
attempt even the smallest repair to
the wheel. A deformed or cracked
wheel must be replaced.
The wheel should be balanced
whenever either the tire or wheel
has been changed or replaced. An
unbalanced wheel can result in
poor performance, adverse han-
dling characteristics, and a short-
ened tire life.
Ride at moderate speeds after
changing a tire since the tire sur-
face must first be “broken in” for it
to develop its optimal characteris-
tics.
After repairing or replacing the reartire, tighten the valve stem nut and
locknut to the specified torques.
Tightening torques:
Valve stem nut:
1.5 Nm (0.2 m·kgf, 1.1 ft·lbf)
Valve stem locknut:
3.0 Nm (0.3 m·kgf, 2.2 ft·lbf)
