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EAU1722A
PERIODIC MAINTENANCE AND ADJUSTMENT
6-23
EWA15141
WARNING
When checking the fuel system, do
not smoke, and make sure there are
no open flames or sparks in the area,
including pilot lights from water heat-
ers or furnaces. Gasoline or gasoline
vapors can ignite or explode, caus-
ing severe injury or property damage.
EAU25881
TroubleshootingAlthough Yamaha scooters receive a
thorough inspection before shipment
from the factory, trouble may occur dur-
ing operation. Any problem in the fuel,
compression, or ignition systems, for
example, can cause poor starting and
loss of power.
The following troubleshooting charts rep-
resent quick and easy procedures for
checking these vital systems yourself.
However, should your scooter require any
repair, take it to a Yamaha dealer, whose
skilled technicians have the necessary
tools, experience, and know-how to ser-
vice the scooter properly.
Use only genuine Yamaha replacement
parts. Imitation par ts may look like
Yamaha parts, but they are often infe-
rior, have a shorter service life and can
lead to expensive repair bills. Troubleshooting
Rear
ZAUM00**
1
2
1. Turn signal light lens
2. Bulb2. Remove the burnt-out bulb by push-
ing it in and turning it counterclock-
wise.
3. Insert a new bulb into the socket,
push it in, and then turn it clock-
wise until it stops.
4. Install the lens by installing the
screw.
NOTICE:
Do not over-
tighten the screw, otherwise the
lens may break.[ECA11191]
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EAU26320
SPECIFICATIONS
8-1
EAU26320
SPECIFICATIONSSpecificationsDimensionsOverall length
1915 mm (75.4 in)
Overall width
695 mm (27.4 in)
Overall height
1040 mm (40.9 in)
Seat height
750 mm (29.5 in)
Wheelbase
1280 mm (50.4 in)
Ground clearance
115 mm (4.53 in)
Minimum turning radius
2000 mm (78.7 in)WeightWith oil and fuel
93.0 kg (205 lb)EngineEngine type
Liquid cooled 4-stroke, SOHC
Cylinder arrangement
Forward-inclined single cylinder
Displacement
49.0 cm
3
Bore x stroke
38.0 x 43.6 mm (1.50 x 1.72 in)
Compression ratio
12.00 :1
Starting system
Electric starter and kickstarter
Lubrication system
Wet sump
Engine oilType
SAE 10W-40
-10 0 10 20 30
40 -20
50
C
SAE 10W-30
SAE 10W-40
SAE 15W-40SAE 20W-40SAE 20W-50
Recommended engine oil grade
API service SG type or higher, JASO
standard MA
Periodic oil change
0.78 L (0.82 US qt, 0.69 Imp.qt)Final transmission oilType
SAE 10W-30 type SE motor oil
Quantity
0.10 L (0.11 US qt, 0.09 Imp.qt)Cooling systemCoolant reservoir capacity (up to the
maximum level mark)
0.26 L (0.27 US qt, 0.23 Imp.qt)
Radiator capacity (including all routes)
0.50 L (0.53 US qt, 0.44 Imp.qt)Air filterAir filter element
Wet elementFuelRecommended fuel
Regular unleaded gasoline onlyFuel tank capacity
4.5 L (1.19 US gal, 0.99 Imp.gal)
Throttle bodyType/quantity
3B31 00(SE AC19-1) / 1
Manufacturer
MIKUNISpark plug (s)Manufacturer/mode
NGK/CR7E
Spark plug gap
0.7-0.8 mm (0.028-0.031 in)ClutchClutch type
Dry, centrifugal automaticTransmissionPrimary reduction system
Helical gear
Primary reduction ratio
50/13 (3.846)
Secondary reduction system
Helical gear
Secondary reduction ratio
43/12 (3.583)
Transmission type
V-belt automatic
Operation
Centrifugal automatic typeChassisFrame type
Steel tube backbone
Caster angle
26.00 degree
