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 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 93 of 104

SPECIFICATIONS
8
Transmission oil:
Type Engine oil SAE 10W30
(API SE)
Total amount 0.25L
Coolant system capacity:
(including all routes)1.6L
Air filter:Wet type element.
Fuel:
Recommended fuel REGULAR UNLEADED
GASOLINE ONLY
Fuel tank capacity 10.9L
Carburetor:
Type / quantity TK5SE x 1
Manufacturer TK
Spark plug:
Type / Manufacturer DR8EA / NGK
Spark plug gap 0.6—0.7 mm
Clutch type:Dry, centrifugal automatic
Transmission:
Primary reduction system Helical gear
Primary reduction ratio 40/15 (2.666)
Secondary reduction system Helical gear
Secondary reduction ratio 37/12 (3.083)
Transmission type V-belt automatic
Operation Centrifugal automatic typeChassis:
Frame type Steel tube underbone
Caster angle ((degree)) 26°
Trail 90 mm
Tires:
Front:
Type Tubeless
Size 120/80-14 58P
Manufacturer / Model MICHELIN / PILOT CITY TL
Rear:
Type Tubeless
Size 150/70-14 66P
Manufacturer / Model MICHELIN / PILOT CITY TL
Maximum load * 202 Kg
Air pressure (cold tire):
Up to 90 kg load*
Front 180 kpa (1.8 kgf/cm
2, 1.8 Bar)
Rear 190 kpa (1.9 kgf/cm2, 1.9 Bar)
90 kg load — 160 kg load *
Front 180 kpa (1.8 kgf/cm
2, 1.8 Bar)
Rear 200 kpa (2.0 kgf/cm2, 2.0 Bar)
160 kg load — maximum
load *
Front 190 kpa (1.9 kgf/cm
2, 1.9 Bar)
Rear 220 kpa (2.2 kgf/cm2, 2.2 Bar)
* Total weight of rider, passenger, cargo and accessories.
8-2
Page 100 of 104

INDEX
A
Acceleration and deceleration ............. 5-3
Air filter and V-belt case air filter
elements, cleaning ....................... 6-18
Anti-theft alarm (optional) ................... 3-7
Auxiliary DC jack ............................... 3-18
Anti-theft device housing ................... 3-14
B
Battery .............................................. 6-29
Battery voltage / coolant
temperature gauge ......................... 3-3
Brake fuid level, checking ................. 6-24
Brake fluid, changing ........................ 6-25
Bake lever, front .................................. 3-9
Brake lever, rear .................................. 3-9
Brake levers, lubricating .................... 6-26
Brake pads, checking ........................ 6-24Braking ................................................ 5-3
C
Cables, checking and lubricating ...... 6-26
Carburator, adjusting ......................... 6-20
Care .................................................... 7-1
Catalytic converter ............................ 3-11
Centerstand and sidestand, checking
and lubricating .............................. 6-27
Conversion table ................................. 8-4
Coolant .............................................. 6-17
Cowlings and panels, removing
and installing .................................. 6-5
E
Engine break-in ................................... 5-4
Engine oil .......................................... 6-13
F
Final transmission oil ........................ 6-16
Front and rear brake lever free play,
adjusting ....................................... 6-23
Front fork, checking ........................... 6-27
Fuel ................................................... 3-10
Fuel consumption, tips for reducing .... 5-4
Fuel gauge .......................................... 3-3
Fuel tank cap .................................... 3-10Fuses, replacing ................................ 6-30
H
Handlebar switches ............................. 3-8
Dimmer switch ............................... 3-8
Engine stop switch ......................... 3-8
Horn switch .................................... 3-8
Hazard switch ................................ 3-9
Pass switch .................................... 3-8
Start switch .................................... 3-8
Turn signal switch ........................... 3-8
Headlight bulb, replacing ................... 6-32
I
Identification number ........................... 9-1
Ignition circuit cut-off system ............. 3-16
Indicator lights ..................................... 3-2
High beam indicator light ............... 3-2
Low beam indicator light ................ 3-2
Turn signal indicator lights .............. 3-2
K
Key identification number .................... 9-1
L
License plate liht bulb, replacing ....... 6-35