TIP
The coolant should be between the
minimum and maximum level marks.
1. Maximum level mark
2. Minimum level mark
3. Coolant level check window
3. If the coolant is at or below theminimum level mark, lift up the
right floorboard mat as shown.
1. Floorboard mat
4. Open the reservoir cap, and thenadd coolant to the maximum
level mark. WARNING! Remove
only the coolant reservoir cap.
Never attempt to remove the
radiator cap when the engine is
hot.
[EWA15161]
NOTICE: If coolant is not avai-
lable, 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 coolant
as soon as possible, otherwise
the cooling system will not be
protected against frost and
corrosion. If water has been
added to the coolant, have a
Yamaha dealer check the anti-
freeze content of the coolant
as soon as possible, otherwise
the effectiveness of the coolant
will be reduced.
[ECA10472]
1. Coolant reservoir cap
5. Close the reservoir cap
6. Place the floorboard mat in the original position and push it
downward to secure it.
EAU33031
Changing the coolant
The coolant must be changed at the
intervals specified in the periodic
maintenance and lubrication chart.
Have a Yamaha dealer change the
coolant. WARNING! Never attempt
to remove the radiator cap when
the engine is hot.
[EWA10381]
Coolant reservoir capacity: 0.25 L (0.26 US qt, 0.22 Imp.qt)
FULL
LOW
PERIODIC MAINTENANCE AND ADJUSTMENT
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EAUS1334
Air filter and V-belt case air
filter elements
The air filter element should be repla-
ced and the V-belt case air filter ele-
ment should be cleaned at the inter-
vals specified in the periodic
maintenance and lubrication chart.
Service the air filter elements more
frequently if you are riding in unu-
sually wet or dusty areas.
Replacing the air filter element1. Place the scooter on the centers- tand.
1. Air filter case cover
2. Screw
3. Air filter element
2. Remove the air filter case coverby removing the screws.
3. Pull the air filter element out.
4. Insert a new air filter element into the air filter case.
5. Install the air filter case cover by installing the screws.
Cleaning the V-belt case air filter
element 1. Remove the V-belt case air filter cover by removing the screws.
1. V-belt case air filter cover
2. Screw
2. Remove the air filter element, andthen blow out the dirt with com-
pressed air as shown.
1. V-belt case air filter cover
2. V-belt case air filter element
3. Check the air filter element fordamage and replace it if neces-
sary.
4. Install the air filter element with the colored side facing outward.
NOTICE: Make sure that each
filter element is properly sea-
ted in its case. The engine
should never be operated wit-
hout the filter elements insta-
lled, otherwise the piston(s)
and/or cylinder(s) may become
excessively worn.
[ECA10531]
5. Install the V-belt case air filter cover by installing the screws.
1
2
2
ZAUM06623
PERIODIC MAINTENANCE AND ADJUSTMENT
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EAU21382
Checking the throttle cable
free play
1. Throttle cable free play
The throttle cable free play should
measure 3.0–5.0 mm (0.12–0.20 in) at
the throttle grip. Periodically check
the throttle cable free play and, if
necessary, have a Yamaha dealer
adjust it.
EAU21401
Valve clearance
The valve clearance changes with
use, resulting in improper air-fuel mix-
ture and/or engine noise. To prevent
this from occurring, the valve clearan-
ce must be adjusted by a Yamaha
dealer at the intervals specified in the
periodic maintenance and lubrication
chart.
EAU21873
Tires
To maximize the performance, durabi-
lity, and safe operation of your vehi-
cle, note the following points regar-
ding the specified tires.
Tire air pressure
The tire air pressure should be chec-
ked and, if necessary, adjusted befo-
re each ride.
EWA10501
Operation of this vehicle with
improper tire pressure may cause
severe injury or death from loss of
control.
The tire air pressure must be
checked and adjusted on cold
WARNING
ZAUM0053
PERIODIC MAINTENANCE AND ADJUSTMENT
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tires (i.e., when the temperatu-
re of the tires equals the
ambient temperature).
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.
EWA10511
Never overload your vehicle. Ope-
ration of an overloaded vehicle
could cause an accident.
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.
TIP
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.
After extensive tests, only the tires lis-
ted below have been approved for
this model by Yamaha Motor Co., Ltd.
Front tire:Size:120/70-15 56S
Manufacturer/model: MICHELIN/GOLD STANDARD
PIRELLI/GTS23
Rear tire: Size:140/70-14 68P - 68S
Manufacturer/model: MICHELIN/GOLD STANDARD
PIRELLI/GTS24
Minimum tire tread depth (front
and rear): 1.6 mm (0.06 in)
1
2
ZAUM0054
WARNING
Tire air pressure (measured on
cold tires): 0–90 kg (0–198 lb):Front:190 kPa (1.90 kgf/cm
2,
28 psi, 1.90 bar)
Rear: 220 kPa (2.20 kgf/cm
2,
32 psi, 2.20 bar)
90 kg - maximum load Front:210 kPa (2.10 kgf/cm
2,
30 psi, 2.10 bar)
Rear: 250 kPa (2.50 kgf/cm
2,
36 psi, 2.50 bar)
Maximum load*: 186 kg (410 lb)
* Total weight of rider, passenger, cargo and accessories
PERIODIC MAINTENANCE AND ADJUSTMENT
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EWA10470
Have a Yamaha dealer replace
excessively worn tires. Besides
being illegal, operating the
vehicle with excessively worn
tires decreases riding stability
and can lead to loss of control.
The replacement of all wheel
and brake related parts, inclu-
ding the tires, should be left to
a Yamaha dealer, who has the
necessary professional know-
ledge and experience.
EAU21960
Cast wheels
To maximize the performance, durabi-
lity, and safe operation of your vehi-
cle, note the following points regar-
ding the specified wheels.
The wheel rims should be chec-
ked for cracks, bends or warpage
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 crac-
ked 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
handling characteristics, and a
shortened 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 characte-
ristics.
EAUM2061
Checking the front and rear
brake lever free play
1. Brake lever free play
1. Brake lever free play
The brake lever free play should mea-
sure 3.0-3.5 mm (0.12-0.20 in) as
shown. Periodically check the brake
WARNING
PERIODIC MAINTENANCE AND ADJUSTMENT
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lever free play and, if necessary, have
a Yamaha dealer check the brake sys-
tem.
EWA10641
An incorrect brake lever free play
indicates a hazardous condition in
the brake system. Do not operate
the vehicle until the brake system
has been checked or repaired by a
Yamaha dealer.
EAU22390
Checking the front and rear
brake pads
The front and rear brake pads must
be checked for wear at the intervals
specified in the periodic maintenance
and lubrication chart.
EAU22430
Front brake pads
1. Wear indicator groove
Each front brake pad is provided with
wear indicator grooves, which allow
you to check the brake pad wear wit-
hout having to disassemble the brake.
To check the brake pad wear, check
the wear indicator grooves. If a brake
pad has worn to the point that the
wear indicator grooves have almostdisappeared, have a Yamaha dealer
replace the brake pads as a set.
EAU22520
Rear brake pads
1. Wear indicator groove
The rear brake is provided with a
check plug, which, if it is removed,
allows you to check the brake pad
wear without disassembling the bra-
ke. To check the brake pad wear,
check the position of the wear indica-
tor while applying the brake. If a bra-
ke pad has worn to the point that the
wear indicator almost touches the
brake disc, have a Yamaha dealer
replace the brake pads as a set.
WARNING
PERIODIC MAINTENANCE AND ADJUSTMENT
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EAU22580
Checking the brake fluid
level
Front brake
1. Minimum level mark
Rear brake
1. Minimum level mark
Insufficient brake fluid may allow air
to enter the brake system, possibly
causing it to become ineffective.
Before riding, check that the brake
fluid is above the minimum level mark
and replenish if necessary. A low bra-
ke fluid level may indicate worn brake
pads and/or brake system leakage. If
the brake fluid level is low, be sure to
check the brake pads for wear and
the brake system for leakage.
Observe these precautions:
When checking the fluid level,
make sure that the top of the bra-
ke fluid reservoir is level.
Use only the recommended qua-
lity brake fluid, otherwise the rub-
ber seals may deteriorate, cau-
sing leakage and poor braking
performance.
Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and
lead to poor braking performan-
ce.
Be careful that water does not
enter the brake fluid reservoir
when refilling. Water will signifi-
cantly lower the boiling point of
the fluid and may result in vapor
lock.
Brake fluid may deteriorate pain-
ted surfaces or plastic parts.
Always clean up spilled fluid
immediately.
As the brake pads wear, it is nor-
mal for the brake fluid level to
gradually go down. However, if
the brake fluid level goes down
suddenly, have a Yamaha dealer
check the cause.
Recommended brake fluid:DOT 4
PERIODIC MAINTENANCE AND ADJUSTMENT
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EAU22731
Changing the brake fluid
Have a Yamaha dealer change the
brake fluid at the intervals specified in
the TIP after the periodic maintenan-
ce and lubrication chart. In addition,
have the oil seals of the master cylin-
ders and calipers as well as the brake
hoses replaced at the intervals listed
below or whenever they are damaged
or leaking.
Oil seals: Replace every two
years.
Brake hoses: Replace every four
years.
EAU23111
Checking and lubricating the
throttle grip and cable
The operation of the throttle grip
should be checked before each ride.
In addition, the cable should be lubri-
cated at the intervals specified in the
periodic maintenance chart.
EAU23172
Lubricating the front and
rear brake levers
Front brake lever
Rear brake lever
The pivoting points of the front and
rear brake levers must be lubricated
PERIODIC MAINTENANCE AND ADJUSTMENT
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