Page 65 of 104

PERIODIC MAINTENANCE AND MINOR REPAIR
6
EC000080
•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 coolant as
soon as possible, otherwise the
engine may not be sufficiently
cooled and 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 antifreeze content of
the coolant as soon as possible,
otherwise the effectiveness of the
coolant will be reduced.
NOTE :
The radiator fan is automatically
switched on or off according to the
coolant temperature in the radiator. If
the engine overheats, see page 6-37
for further instructions.
CAUTION:EAU03627*
Air filter and V-belt case air
filter elements
The air filter and V-belt case air filter
elements should be cleaned at the
intervals specified in the periodic main-
tenance and lubrication chart. Clean
both filter elements more frequently if
you are riding in unusually wet or dusty
areas.
EC000092*
•Make sure that each filter
element is properly seated in its
case.
•The engine should never be
operated without the filter
elements installed, otherwise
the piston and/or cylinder may
become excessively worn.Cleaning the air filter element
1. Place the scooter on the
centerstand.
2. Remove the air filter case cover
by removing the screws.
CAUTION:
1. Air filter case cover
2. Screw (x5)
3. Sponge material
4. Mesh sheet
6-18
1
2 2
34ZAUM0446
Page 78 of 104

PERIODIC MAINTENANCE AND MINOR REPAIR
6
1. Backup fuse
2. Headlight fuse
3. Radiator fan fuse
4. Signaling system fuse
5. Ignition fuse
6. Auxiliary DC jack fuse
7. Spare fuse (x2)
8. Fuse tongs
CAUTION:
6-31
12345 776
8
ZAUM0460
The fuse block, which contains the fu-
ses for the individual circuits, is located
in the storage compartment A. (See
page 3-12 for storage compartment
opening and closing procedures.)If a fuse is blown, replace it as follows.
1. Turn the key to "
" and turn off
the electrical circuit in question.
2. Remove the blown fuse, and then
install a new fuse of the specified
amperage.
Specified fuses:
Main fuse Box
Main fuse: 30 A
Fuse block
Backup fuse 3 A
Headlight fuse: 15 A
Radiator fan fuse: 15 A
Signaling system fuse: 15 A
Ignition fuse: 7.5 A
Auxiliary DC jack fuse: 3 A3. Turn the key to "
" 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.
EC000103
Do not use a fuse of a higher
amperage rating than recommended
to avoid causing extensive damage
to the electrical system and possibly
a fire.
Page 84 of 104

PERIODIC MAINTENANCE AND MINOR REPAIR
6Engine overheating
EW000070
•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.
•After 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.
WARNING
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.
6-37
Page 94 of 104

SPECIFICATIONS
8
Wheels:
Front
Type Cast wheel
Size 14 x MT 2.75
Rear
Type Cast wheel
Size 14 x MT 4.00
Brakes:
Front
Type Single disc brake
Operation Right hand
Type brake fluid DOT 4
Rear
Type Single disc brake
Operation Left hand
Type brake fluid DOT 4
Suspension:
Front suspension Telescopic fork
Rear suspension Unit swing
Shock absorber:
Front fork type Coil spring/oil damper
Rear shock absorber Coil spring/oil damper
assembly type
Wheel travel:
Front wheel travel 108 mm
Rear wheel travel 120 mmElectrical:
Ignition system type Transistorized coil ignition
Charging system AC magneto
Battery
Model F9-12B
Voltage/capacity 12 V / 9 Ah
Headlight type:Halogen bulb
Bulbs (voltage/wattage x quantity):
Headlight 12V, 35W/35Wx2
Auxiliary light 12V, 5Wx2
Tail/brake light 12V, 5W/21Wx2
Turn signal light
Front 12V, 21Wx2
Rear 12V, 10Wx2
High beam indicator light LED
Turn signal indicator light LED
Headlight indicator light LED
Fuses:
Main fuse: 30 A
Backup fuse: 3 A
Headlight fuse: 15 A
Radiator fan fuse: 15 A
Signaling system fuse: 15 A
Ignition fuse: 7.5 A
Auxiliary DC jack fuse: 3 A
Reserve fuse (x quantity) 30Ax1, 15Ax1, 7.5Ax1
8-3