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6-19
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
56
7
8
9
1
2
2.Check the coolant level in the
coolant reservoir.NOTE:
The coolant should be between the
minimum and maximum level marks.1.Maximum level mark
2.Minimum level mark
1
1.Coolant reservoir cap3.If the coolant is at or below the
minimum level mark, open the
reservoir cap, add coolant to the
maximum level mark, and then
close the reservoir cap.
4.Install the battery cover. Coolant reservoir capacity:
0.4 L
EC000080
cC8If 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.
8If water has been used instead
of coolant, replace it with
coolant as soon as possible,
otherwise the engine may not
be sufficiently cooled and the
cooling system will not be pro-
tected against frost and corro-
sion.
8If water has been added to the
coolant, have a Yamaha dealer
check the antifreeze content of
the coolant as soon as possi-
ble, otherwise the effective-
ness of the coolant will be
reduced.
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6-20
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
56
7
8
9
NOTE:
The radiator fan is automatically
switched on or off according to the
coolant temperature in the radiator. If
the engine overheats, see page 6-40
for further instructions.
Cleaning the air filter element
1.Place the scooter on the center-
stand.
2.Remove the air filter case cover
by removing the screws.
3.Pull the sponge material out
along with the mesh sheet, clean
it with solvent, and then squeeze
the remaining solvent out.
EAU03627
Air filter and V-belt case air
filter elementsThe air filter and V-belt case air filter
elements should be cleaned at the
intervals specified in the periodic
maintenance and lubrication chart.
Clean both filter elements more fre-
quently if you are riding in unusually
wet or dusty areas.
EC000092
cC8Make sure that each filter ele-
ment is properly seated in its
case.
8The engine should never be
operated without the filter ele-
ments installed, otherwise the
piston(s) and/or cylinder(s)
may become excessively
worn.
1
2 2
3
4
1.Air filter case cover
2.Screw (´5)
3.Sponge material
4.Mesh sheet
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6-31
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
56
7
8
9
EAU00796
Removing the battery coverThe battery cover needs to be
removed to access the battery, the
fuse box and the coolant reservoir
tank cap.
To remove the battery cover, pull up
the right footboard mat as shown,
and then remove the screws and the
battery cover.
2
3
1
1.Right footboard mat
2.Screw (´2)
3.Battery cover
1
1.Battery
EAU01271
BatteryThis scooter is equipped with a
sealed-type (MF) battery, which does
not require any maintenance. There
is no need to check the electrolyte or
to add distilled water.
To charge the battery
Have a Yamaha dealer charge the
battery as soon as possible if it
seems to have discharged. Keep in
mind that the battery tends to dis-
charge more quickly if the scooter is
equipped with optional electrical
accessories.
EAU01144
Checking the wheel bearingsThe front and rear wheel bearings
must be checked at the intervals
specified in the periodic maintenance
and lubrication chart. If there is play
in the wheel hub or if the wheel does
not turn smoothly, have a Yamaha
dealer check the wheel bearings.
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6-40
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
56
7
8
9 Engine overheating
EW000070
w8Do 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.
8After removing the radiator cap retaining bolt, place a thick rag, like a towel, over the radiator cap, and then
slowly rotate the cap counterclockwise to the detent 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.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.
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.
5GM-9-E1(No ABS) 9/27/00 2:18 PM Page 83
Page 101 of 106

INDEX
F
Final gear oil..........................................6-17
Front and rear brake lever free play,
adjusting.............................................6-25
Front and rear brake pads, checking.....6-26
Front fork, checking...............................6-29
Fuel.......................................................3-10
Fuel consumption, tips for reducing........5-4
Fuel gauge..............................................3-4
Fuel tank cap...........................................3-9
Fuses, replacing....................................6-33
H
Handlebar switches.................................3-5
Pass switch.........................................3-5
Dimmer switch....................................3-5
Turn signal switch...............................3-6
Horn switch.........................................3-6
Light switch.........................................3-6
Headlight variations............................3-7
Engine stop switch..............................3-8
Start switch.........................................3-8
Headlight bulb, replacing.......................6-34
I
Identification numbers.............................9-1
Ignition circuit cut-off system.................3-15
Indicator lights.........................................3-2
Oil change indicator light....................3-2
High beam indicator light....................3-2
Turn signal indicator lights..................3-2
K
Key identification number........................9-1
L
License plate light bulb, replacing.........6-37
M
Main switch/steering lock........................3-1
Model label..............................................9-2
P
Parking....................................................5-5
Part locations...........................................2-1
Periodic maintenance and lubrication
chart......................................................6-3
Pre-operation check list...........................4-1
R
Rider seat..............................................3-11
Rider seat, adjusting..............................3-12
S
Safe-riding points....................................1-2
Self-diagnosis device..............................3-3
Shock absorber assemblies, adjusting..3-14
Sidestand..............................................3-15
Spark plug, checking.............................6-12
Specifications..........................................8-1
Speedometer unit....................................3-3
Starting off...............................................5-2
Starting the engine..................................5-1
Steering, checking.................................6-30
Storage....................................................7-4
A
Acceleration and deceleration.................5-3
Air filter and V-belt case air filter
elements, cleaning..............................6-20
Air flow louver........................................6-22
Anti-theft alarm (optional)........................3-4
B
Battery...................................................6-31
Battery cover, removing........................6-31
Brake fluid level, checking.....................6-27
Brake fluid, changing.............................6-28
Brake lever (front)....................................3-8
Brake lever (rear)....................................3-8
Brake levers, lubricating........................6-28
Braking....................................................5-3
C
Cables, checking and lubricating...........6-28
Care.........................................................7-1
Catalytic converter.................................3-10
Centerstand and sidestand, checking
and lubricating....................................6-29
Clock.......................................................3-5
Conversion table.....................................8-5
Coolant..................................................6-18
Coolant temperature gauge.....................3-4
Cowlings and panel, removing and
installing................................................6-6
E
Engine break-in.......................................5-4
Engine oil...............................................6-14
5GM-9-E1(No ABS) 9/27/00 2:18 PM Page 100