Page 41 of 92

EAU16793
BrakingEWA10300
s s
WARNING
●Avoid braking hard or suddenly
(especially when leaning over
to one side), otherwise the sco-
oter may skid or overturn.
●Railroad crossings, streetcar
rails, iron plates on road cons-
truction sites, and manhole
covers become extremely slip-
pery when wet. Therefore, slow
down when approaching such
areas and cross them with cau-
tion.
●Keep in mind that braking on a
wet road is much more difficult.
●Ride slowly down a hill, as bra-
king downhill can be very diffi-
cult.
1. Close the throttle completely.
2. Apply both front and rear brakes
simultaneously while gradually
increasing the pressure.
EAU16820
Tips for reducing fuel
consumption
Fuel consumption depends largely on
your riding style. Consider the follo-
wing tips to reduce fuel consumption:
●Avoid high engine speeds during
acceleration.
●Avoid high engine speeds with no
load on the engine.
●Turn the engine off instead of let-
ting it idle for an extended length
of time (e.g., in traffic jams, at
traffic lights or at railroad cros-
sings).
PUSHOPEN
ZAUM0651
OPERATION AND IMPORTANT RIDING POINTS
5-3
5
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-4
6
ODOMETER READING
CHECK OR ANNUAL
NO. ITEM MAINTENANCE JOB
1000 km 10000 km 20000 km 30000 km 40000 kmCHECK
(600 mi) (6000 mi) (12000 mi) (18000 mi) (24000 mi)
17 *Front fork• Check operation and for oil
leakage.√√√ √
18 *Shock absorber • Check operation and shock
assembliesabsorbers for oil leakage.√√√ √
19 *Fuel injection• Check engine idle speed.√√ √√ √ √
20Engine oil• Change. (See page 6-9). √When the oil change indicator light comes
on [every 3000 km (1800 mi)]
• Check oil level and vehicle
for oil leakage.Every 3000 km (1800 mi)√
21 *Engine oil strainer• Clean.√
• Check coolant level and vehicle
22 *Cooling systemfor coolant leakage.√√√ √√
• Change. Every 3 years
23Final transmission • Check vehicle for oil leakage.√√ √oil
• Change.√√√
24 *V-belt• Replace. Every 20000 km (12000 mi)
25 *Front and rear brake
switches• Check operation.√√ √√ √ √
26Moving parts
and cables• Lubricate.√√√ √√
• Check operation and free play.
Throttle grip • Adjust the throttle cable free
27 *housingplay if necessary.√√√ √√
and cable• Lubricate the throttle grip
housing and cable.
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Page 47 of 92
PERIODIC MAINTENANCE AND ADJUSTMENT
6-5
6
ODOMETER READING
CHECK OR ANNUAL
NO. ITEM MAINTENANCE JOB
1000 km 10000 km 20000 km 30000 km 40000 kmCHECK
(600 mi) (6000 mi) (12000 mi) (18000 mi) (24000 mi)
28 *Lights, signals and • Check operation.
switches• Adjust headlight beam.√√ √√ √ √
EAU18670
TIP
●The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
●Hydraulic brake service
• Regularly check and, if necessary, correct the brake fluid level.
• Every two years replace the internal components of the brake master cylinders and calipers, and change the bra-
ke fluid.
• Replace the brake hoses every four years and if cracked or damaged.
1C0-F8199-E5.QXD 3/10/08 05:56 Página 47
Page 48 of 92
EAU18731
Removing and installing the
cowlings and panel
1. Cowling B
2. Cowling A
3. Panel A
4. Cowling C
1. Cowling D
The cowlings and panel shown need
to be removed to perform some of the
maintenance jobs described in this
chapter. Refer to this section each
time a cowling or panel needs to be
removed and installed.
EAU18900
Cowling A
T
o remove the cowling
1. Remove the cowling bolts.
1. Screw
2. Cowling A
2. Disconnect the turn signal light
lead connectors, and then take
the cowling off.
1. Turn signal light lead connector
To install the cowling
1. Connect the turn signal light lead
connectors.
2. Place the cowling in the original
position.
3. Install the cowling bolts.
PERIODIC MAINTENANCE AND ADJUSTMENT
6-6
6
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Page 50 of 92

EAUM1250
Panel A
T
o remove the panel
1. Open the storage compartment.
(See page 3-16).
2. Remove the screw, and then take
the panel off.
1. Screw
To install the panel
1. Place the panel in the original
position, and then install the
screw.
2. Close the storage compartment.
EAU19632
Checking the spark plug
The spark plug is an important engine
component, which is easy to check.
Since heat and deposits will cause
any spark plug to slowly erode, the
spark plug should be removed and
checked in accordance with the
periodic maintenance and lubrication
chart. In addition, the condition of the
spark plug can reveal the condition of
the engine.
To remove the spark plug
1. Remove cowling D. (See page
6-6).
2. Remove the spark plug cap.
1. Spark plug cap
3. Remove the spark plug as
shown, with the spark plug
wrench included in the owner’s
tool kit.
1. Spark plug wrench
To check the spark plug
1. Check that the porcelain insula-
tor around the center electrode of
the spark plug is a medium-to-
light tan (the ideal color when the
vehicle is ridden normally).
TIP
If the spark plug shows a distinctly
different color, the engine could be
operating improperly. Do not attempt
to diagnose such problems yourself.
Instead, have a Yamaha dealer check
the vehicle.
1
1
PERIODIC MAINTENANCE AND ADJUSTMENT
6-8
6
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2. Check the spark plug for electro-
de erosion and excessive carbon
or other deposits, and replace it if
necessary.
To install the spark plug
1. Measure the spark plug gap with
a wire thickness gauge and, if
necessary, adjust the gap to spe-
cification.
1. Spark plug gap
2. Clean the surface of the spark
plug gasket and its mating surfa-
ce, and then wipe off any grime
from the spark plug threads.
3. Install the spark plug with the
spark plug wrench, and then
tighten it to the specified torque.
TIP
If a torque wrench is not available
when installing a spark plug, a good
estimate of the correct torque is
1/4–1/2 turn past finger tight. Howe-
ver, the spark plug should be tighte-
ned to the specified torque as soon
as possible.
4. Install the spark plug cap.
5. Install the cowling.
EAUM1551
Engine oil
The engine oil level should be chec-
ked before each ride. In addition, the
oil must be changed at the intervals
specified in the periodic maintenance
and lubrication chart and when the
service indicator light comes on.
To check the engine oil level
1. Place the scooter on the centers-
tand. A slight tilt to the side can
result in a false reading.
2. Start the engine, warm it up for
several minutes, and then turn it
off.
3. Wait a few minutes until the oil
settles, remove the oil filler cap,
wipe the dipstick clean, insert it
back into the oil filler hole (wit-
hout screwing it in), and then
remove it again to check the oil
level.
TIP
The engine oil should be between the
minimum and maximum level marks.
Tightening torque:
Spark plug:
17.5 Nm (1.75 m·kgf, 12.5 ft·lbf)
Spark plug gap:
0.8–0.9 mm (0.031–0.035 in)
1
ZAUM0037
Specified spark plug:
NGK/DR8EA
PERIODIC MAINTENANCE AND ADJUSTMENT
6-9
6
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6. Refill with the specified amount
of the recommended final trans-
mission oil, and then install and
tighten the oil filler cap. WAR-
NING! Make sure that no
foreign material enters the final
transmission case. Make sure
that no oil gets on the tire or
wheel.
[EWA11311]
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 coo-
lant must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.
EAUS1274
To check the coolant level
1. Place the vehicle on a level surfa-
ce and hold it in an upright posi-
tion.
TIP
●The coolant level must be chec-
ked on a cold engine since the
level varies with engine tempera-
ture.
●Make sure that the vehicle is
positioned straight up when
checking the coolant level. A
slight tilt to the side can result in
a false reading.
2. Check the coolant level through
the check window.
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 the
minimum level mark, remove the
right floorboard mat by pulling it
up.
4. Open the reservoir cap, and then
add 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 available, use distilled
water or soft tap water instead.
FULL
LOW
Recommended final transmission
oil:
See page 8-1
Oil quantity:
0.25 L (0.26 US qt, 0.22 Imp.qt)
PERIODIC MAINTENANCE AND ADJUSTMENT
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6
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3. Turn the key to “ON” and turn on
the electrical circuit in question to
check if the device operates.
4. If the fuse immediately blows
again, have a Yamaha dealer
check the electrical system.
EAU23911
Replacing a headlight bulb
This model is equipped with quartz
bulb headlights. If a headlight bulb
burns out, replace it as follows.
ECA10660
NOTICE
Do not touch the glass part of the
headlight bulb to keep it free from
oil, otherwise the transparency of
the glass, the luminosity of the
bulb, and the bulb life will be adver-
sely affected. Thoroughly clean off
any dirt and fingerprints on the
headlight bulb using a cloth mois-
tened with alcohol or thinner.
1. Do not touch the glass part of the bulb.
1. Remove cowling B. (See page
6-6).
2. Disconnect the headlight coupler,
and then remove the headlight
bulb cover.
1. Headlight coupler
2. Headlight bulb cover
3. Remove the headlight bulb hol-
der according to the following
illustration, and then remove the
burnt out bulb.
Specified fuses:
Main fuse:
30.0 A
ECU (Electronic Control Unit)
fuse:
5.0 A
Signaling system fuse:
15.0 A
Ignition fuse:
10.0 A
Headlight fuse:
15.0 A
Backup fuse:
5.0 A
Radiator fan fuse:
10.0 A
PERIODIC MAINTENANCE AND ADJUSTMENT
6-27
6
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