Page 24 of 66
INSTRUMENT AND CONTROL FUNCTIONS
3-8
3
EAUS1050
Kickstarter To start the engine, push the kickstarter
down lightly with your foot until the
gears engage, and then push it down
smoothly but forcefully.
EAU13891
Seat To open the seat
1. Insert the key in the lock, and then
turn it as shown.
2. Fold the seat up.
To close the seat
1. Fold the seat down, and then push
it down to lock it in place.
2. Remove the key.TIPMake sure that the seat is properly se-
cured before riding.
EAUM1580
Anti-theft device housing The anti-theft device housing, located
under the seat, is designed to store a
joint type anti-theft device with a maxi-
mum length of 1 meter. (See page 3-8
for seat opening and closing proce-
dures.)TIPSome anti-theft devices cannot fit into
the housing due to their size or shape.
1. Kickstarter
1
ZAUM0146
1. Seat
2. Seat lock
1
2
ZAUM0147
1. Anti-theft device housing
1
ZAUM0148
U1S0E1E0.book Page 8 Wednesday, November 7, 2012 3:32 PM
Page 31 of 66

OPERATION AND IMPORTANT RIDING POINTS
5-4
5
EAU16820
Tips for reducing fuel con-
sumption Fuel consumption depends largely on
your riding style. Consider the following
tips to reduce fuel consumption:●
Avoid high engine speeds during
acceleration.
●
Avoid high engine speeds with no
load on the engine.
●
Turn the engine off instead of let-
ting it idle for an extended length of
time (e.g., in traffic jams, at traffic
lights or at railroad crossings).
EAU16830
Engine break-in There is never a more important period
in the life of your engine than the period
between 0 and 1000 km (600 mi). For
this reason, you should read the follow-
ing material carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
1000 km (600 mi). The various parts in
the engine wear and polish themselves
to the correct operating clearances.
During this period, prolonged full-throt-
tle operation or any condition that might
result in engine overheating must be
avoided.
EAUM2091
0–150 km (0–90 mi)
Avoid prolonged operation above 1/3
throttle. Vary the speed of the scooter
from time to time. Do not operate it at
one set throttle position.
150–500 km (90–300 mi)
Avoid prolonged operation above 1/2
throttle.
500–1000 km (300–600 mi)
Avoid cruising speeds in excess of 3/4
throttle.1000 km (600 mi) and beyond
Avoid prolonged full throttle operation.
Vary speeds occasionally. NOTICE:
After 1000 km (600 mi) of operation,
the final transmission oil must be
changed.
[ECAM1071]
NOTICE
ECA10270
If any engine trouble should occur
during the engine break-in period,
immediately have a Yamaha dealer
check the vehicle.
U1S0E1E0.book Page 4 Wednesday, November 7, 2012 3:32 PM
Page 61 of 66

SPECIFICATIONS
8-1
8
Dimensions:Overall length:
1785 mm (70.3 in)
Overall width:
711 mm (28.0 in)
Overall height:
1077 mm (42.4 in)
Seat height:
787 mm (31.0 in)
Wheelbase:
1202 mm (47.3 in)
Ground clearance:
185 mm (7.28 in)
Minimum turning radius:
1800 mm (70.9 in)Weight:Curb weight:
81 kg (179 lb)Engine:Engine type:
Air cooled 2-stroke
Cylinder arrangement:
Single cylinder
Displacement:
49 cm³
Bore × stroke:
40.0 × 39.2 mm (1.57 × 1.54 in)
Compression ratio:
7.20 : 1
Starting system:
Electric starter and kickstarter
Lubrication system:
Separate lubrication (Yamaha autolube)
Engine oil:Type:
YAMALUBE 2S or 2-stroke engine oil
(JASO FC grade) or (ISO EG-C or EG-D
grade)
Engine oil quantity:
Quantity:
1.40 L (1.48 US qt, 1.23 Imp.qt)Final transmission oil:Type:
SAE 10W-30 type SE motor oil
Quantity:
0.11 L (0.12 US qt, 0.10 Imp.qt)Air filter:Air filter element:
Wet elementFuel:Recommended fuel:
Premium unleaded gasoline only
Fuel tank capacity:
6.5 L (1.72 US gal, 1.43 Imp.gal)
Fuel reserve amount:
2.9 L (0.77 US gal, 0.64 Imp.gal)Carburetor:Manufacturer:
DELLORTO
Type × quantity:
PHBN12 x 1Spark plug(s):Manufacturer/model:
NGK/BR8HS
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)
Clutch:Clutch type:
Dry, centrifugal automaticTransmission:Primary reduction ratio:
1.000
Final drive:
Gear
Secondary reduction ratio:
12.923 (52/13 x 42/13)
Transmission type:
V-belt automaticChassis:Frame type:
Underbone
Caster angle:
27.00 °
Trail:
90 mm (3.5 in)Front tire:Type:
Tubeless
Size:
120/70-12
Manufacturer/model:
PIRELLI / EVO21 (51L)Rear tire:Type:
Tubeless
Size:
130/70-12
Manufacturer/model:
PIRELLI / EVO22 (56L)
U1S0E1E0.book Page 1 Wednesday, November 7, 2012 3:32 PM