Page 83 of 96

PERIODIC MAINTENANCE AND MINOR REPAIR
6-36
2
3
4
5
67
8
9 Engine overheating
WARNING
EWAT1040
Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.
Place a thick rag, like a towel, over the radiator cap, and then slowly rotate the cap counterclockwise to the de-
tent to allow any residual pressure to escape. When the hissing sound has stopped, press down on the cap
while turning it counterclockwise, and then remove the cap.
NOTE:
If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended coolant
as soon as possible.
Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.Add coolant. (See NOTE.)
Start the engine. If the engine overheats again,
have a
Yamaha dealer check
and repair the cooling system.
There is
leakage.
There is
no leakage.
Page 87 of 96

SCOOTER CARE AND STORAGE
7-4
2
3
4
5
6
78
9
fuel from deteriorating.
3. Perform the following steps to pro-
tect the cylinders, piston rings, etc.
from corrosion.
a. Remove the spark plug caps
and the spark plugs.
b. Pour a teaspoonful of engine oil
into the spark plug bores.
c. Install the spark plug caps onto
the spark plugs, and then place
the spark plugs 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 walls with oil.)
e. Remove the spark plug caps
from the spark plugs, and then
install the spark plugs and the
spark plug caps.
WARNING
EWA10950
To prevent damage or injury from
sparking, make sure to ground the
spark plug electrodes while turning
the engine over.
4. Lubricate all control cables and thepivoting points of all levers and
pedals as well as of the sidestand/
centerstand.
5. 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.
6. Cover the muffler outlet with a
plastic bag to prevent moisture
from entering it.
7. 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 in-
formation on storing the battery,
see page 6-28.
NOTE:
Make any necessary repairs before
storing the scooter.
Page 93 of 96

INDEX
A
ABS (for ABS models) .............................3-14
ABS warning light (for ABS models) ..........3-4
Acceleration and deceleration ...................5-3
Air filter element, replacing ......................6-17
Anti-theft alarm (optional) ........................3-11
Auxiliary light bulb, replacing ...................6-33
B
Battery .....................................................6-28
Brake fluid, changing ...............................6-24
Brake fluid level, checking .......................6-23
Brake lever, front .....................................3-12
Brake lever, rear ......................................3-13
Brake levers, lubricating ..........................6-25
Braking ......................................................5-3
C
Care ...........................................................7-1
Catalytic converter ...................................3-17
Centerstand and sidestand, checking and
lubricating ..............................................6-26
Chain drive oil ..........................................6-14
Coolant ....................................................6-15
Coolant temperature gauge .......................3-6
D
Dimmer switch .........................................3-11
E
Engine break-in .........................................5-4
Engine idling speed .................................6-18
Engine oil and oil filter cartridge ..............6-11
Engine stop switch...................................3-12
Engine trouble warning light ......................3-4
F
Front and rear brake lever free play ........6-21
Front and rear brake pads, checking .......6-22Front fork, checking ................................. 6-26
Fuel ......................................................... 3-16
Fuel consumption, tips for reducing .......... 5-4
Fuel gauge ................................................ 3-5
Fuel tank cap ........................................... 3-15
Fuses, replacing ...................................... 6-29
H
Handlebar switches ................................. 3-11
Hazard switch .......................................... 3-12
Headlight bulb, replacing ......................... 6-31
Helmet holder .......................................... 3-18
High beam indicator light ........................... 3-3
Horn switch.............................................. 3-12
I
Identification numbers ............................... 9-1
Ignition circuit cut-off system ................... 3-22
Immobilizer system.................................... 3-1
Immobilizer system indicator light ............. 3-4
Indicator and warning lights....................... 3-3
K
Key identification number .......................... 9-1
L
License plate light bulb, replacing ........... 6-33
M
Main switch/steering lock .......................... 3-2
Matte color, caution ................................... 7-1
Model label ................................................ 9-2
Multi-function display ................................. 3-6
P
Panels, removing and installing................. 6-7
Parking ...................................................... 5-5
Part locations............................................. 2-1
Pass switch ............................................. 3-11Periodic maintenance and lubrication
chart ........................................................ 6-3
Pre-operation check list............................. 4-2
R
Rear brake lock lever .............................. 3-14
Rear brake lock lever cable, adjusting .... 6-22
Rear view mirrors .................................... 3-21
S
Safe-riding points ...................................... 1-4
Safety information ..................................... 1-1
Seat ......................................................... 3-17
Shock absorber ....................................... 3-21
Sidestand ................................................ 3-21
Spark plugs, checking ............................. 6-10
Specifications ............................................ 8-1
Speedometer............................................. 3-5
Starting off ................................................. 5-2
Starting the engine .................................... 5-1
Start switch.............................................. 3-12
Steering, checking................................... 6-27
Storage...................................................... 7-3
Storage compartments ............................ 3-19
T
Tail/brake light ......................................... 6-32
Throttle cable free play, checking ........... 6-18
Throttle grip and cable, checking and
lubricating ............................................. 6-25
Tires ........................................................ 6-19
Tool kit....................................................... 6-1
Troubleshooting ...................................... 6-34
Troubleshooting charts............................ 6-35
Turn signal indicator lights ........................ 3-3
Turn signal light bulb (front), replacing .... 6-32
Turn signal switch ................................... 3-11