Page 31 of 80
Instrument and control functions
4-6
4
EAU13414
Fuel tank breather hose
Before operating the motorcycle:
Check the fuel tank breather hose
connection.
Check the fuel tank breather hose
for cracks or damage, and replace
it if necessary.
Make sure that the fuel tank
breather hose is not blocked, and
clean it if necessary.
EAU13454
2-stroke en gine oil
Make sure that there is sufficient 2-
stroke engine oil in the oil tank. Add the
recommended 2-stroke engine oil as
necessary.
NOTICE
ECA16671
Make sure that the 2-stroke en gine
oil tank cap is properly installe d.
1. Fuel tank breather hose
1
1. 2-stroke engine oil tank cap
2. Minimum level mark
Recommen ded oil:
See page 9-1.
Oil quantity: 0.30 L (0.32 US qt, 0.26 Imp.qt)
2 1
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Page 36 of 80

For your safety – pre-operation checks
5-1
5
EAU63440
Inspect your vehicle each time you use it to make sure the vehicle is in safe oper-
ating condition. Always follow the inspection and maintenance procedures and
schedules described in the Owner’s Manual.
WARNING
EWA11152
Failure to inspect or maintain the vehicle properly increases the possibility
of an acci dent or equipment d amage. Do not operate the vehicle if you fin d
any pro blem. If a pro blem cannot be correcte d b y the proce dures provi ded
in this manual, have the vehicle inspecte d b y a Yamaha dealer.
Before using this vehicle, check the following points:
ITEM CHECKSPAGE
Fuel • Check fuel level in fuel tank.
• Refuel if necessary.
• Check fuel line for leakage.
• Check fuel tank breather hose for obstructions, cracks
or damage, and check hose connection. 4-4, 4-6
2-stroke en gine oil • Check oil level in oil tank.
• If necessary, add recommended oil to specified level.
• Check vehicle for oil leakage. 4-6
Transmission oil • Check oil level in transmission case.
• If necessary, add recommended oil to specified level. 7-8
Mi dd le an d final g ear
cases • Check vehicle for grease leakage.
7-10
Front brake • Check operation.
• Lubricate cable if necessary.
• Check lever free play.
• Adjust if necessary. 7-17,
7-18
Rear brake • Check operation.
• Lubricate cable if necessary.
• Check lever free play.
• Adjust if necessary. 7-17,
7-18
Throttle grip • Make sure that operation is smooth.
• Check throttle grip free play.
• If necessary, have Yamaha dealer adjust throttle grip
free play and lubricate cable and grip housing. 7-14,
7-19
Control ca bles • Make sure that operation is smooth.
• Lubricate if necessary.
7-19
Wheels an d tires •Check for damage.
• Check tire condition and tread depth.
• Check air pressure.
• Correct if necessary. 7-14,
7-16
Brake levers • Make sure that operation is smooth.
• Lubricate lever pivoting points if necessary.
7-20
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Page 62 of 80

Periodic maintenance an d a djustment
7-21
7
EAU23193
Checkin g an d lu bricatin g the
centerstan d
The operation of the centerstand
should be checked before each ride,
and the pivots and metal-to-metal con-
tact surfaces should be lubricated if
necessary.
WARNING
EWA11302
If the centerstan d d oes not move up
an d d own smoothly, have a Yamaha
d ealer check or repair it. Otherwise,
the centerstan d coul d contact the
g roun d an d d istract the operator, re-
sultin g in a possi ble loss of control.
EAU23273
Checkin g the front fork
The condition and operation of the
front fork must be checked as follows
at the intervals specified in the periodic
maintenance and lubrication chart.
To check the con dition
Check the inner tubes for scratches,
damage and excessive oil leakage.
To check the operation 1. Place the vehicle on a level surfa- ce and hold it in an upright posi-
tion. WARNING! To avoi d injury,
securely support the vehicle so
there is no dan ger of it fallin g
over.
[EWA10752]
2. While applying the front brake, push down hard on the handle-
bars several times to check if the
front fork compresses and re-
bounds smoothly.
NOTICE
ECA10591
If any damag e is foun d or the front
fork does not operate smoothly,
have a Yamaha dealer check or re-
pair it.
Recommen ded lu bricant:
Lithium-soap-based grease
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Page 74 of 80

Specifications
9-1
9
Dimensions:
Overall length:1245 mm (49.0 in)
Overall width:
610 mm (24.0 in)
Overall height: 705 mm (27.8 in)
Seat height: 475 mm (18.7 in)
Wheelbase:
855 mm (33.7 in)
Ground clearance: 95 mm (3.74 in)
Minimum turning radius: 1.3 m (4.27 ft)
Wei ght:
Curb weight:
41 kg (90 lb)
Maximum rider weight: 25.0 kg (55 lb)
Technical permissible mass (Maximum load +
Curb weight): 66 kg (146 lb)
Noise an d vi bration level:
Noise level (77/311/EEC):
75.1 dB(A) at 2750 r/min
(PW50_AUT/BEL/CHE/CYP/CZE/DEU/DN
K/ESP/FIN/FRA/GBR/GRC/IRL/ITA/NLD/
NOR/POL/PRT/SVK/SVN/SWE/TUR)
Uncertainty of measurement: 3.0 dB(A)
(PW50_AUT/BEL/CHE/CYP/CZE/DEU/DN
K/ESP/FIN/FRA/GBR/GRC/IRL/ITA/NLD/
NOR/POL/PRT/SVK/SVN/SWE/TUR)
Vibration on seat (EN1032, ISO5008): Will not exceed 0.5 m/s²
(PW50_AUT/BEL/CHE/CYP/CZE/DEU/DN
K/ESP/FIN/FRA/GBR/GRC/IRL/ITA/NLD/
NOR/POL/PRT/SVK/SVN/SWE/TUR)
Uncertainty of measurement:
0.1 m/s²
(PW50_AUT/BEL/CHE/CYP/CZE/DEU/DN
K/ESP/FIN/FRA/GBR/GRC/IRL/ITA/NLD/
NOR/POL/PRT/SVK/SVN/SWE/TUR)
Vibration on handlebar (EN1032, ISO5008): Will not exceed 2.5 m/s²
(PW50_AUT/BEL/CHE/CYP/CZE/DEU/DN
K/ESP/FIN/FRA/GBR/GRC/IRL/ITA/NLD/
NOR/POL/PRT/SVK/SVN/SWE/TUR) Uncertainty of measurement:
0.4 m/s²
(PW50_AUT/BEL/CHE/CYP/CZE/DEU/DN
K/ESP/FIN/FRA/GBR/GRC/IRL/ITA/NLD/
NOR/POL/PRT/SVK/SVN/SWE/TUR)
Engine:
Combustion cycle:
2-stroke
Cooling system: Air cooled
Number of cylinders: Single cylinder
Displacement:
49 cm³
Bore × stroke:
40.0 × 39.2 mm (1.57 × 1.54 in)
Compression ratio: 6.0 : 1
Starting system: Kickstarter
Lubrication system:
Separate lubrication
Engine oil:
Engine oil:
YAMALUBE 2S or 2-stroke engine oil
(JASO FC grade or ISO EG-C [or EG-D]
grade)
Recommended brand: YAMALUBE
Engine oil quantity: Engine oil tank capacity: 0.30 L (0.32 US qt, 0.26 Imp.qt)
Transmission oil:
Type:
Motor oil SAE 10W-30 type SE or higher or
Gear oil SAE 85W GL-3
Quantity:
0.30 L (0.32 US qt, 0.26 Imp.qt)
Air filter:
Air filter element:Wet element
Fuel:
Recommended fuel:Regular unleaded gasoline only
Fuel tank capacity: 2.0 L (0.5 US gal, 0.4 Imp.gal)
Car buretor:
Type × quantity:
VM12SC × 1
U2SA83E0.book Page 1 Monday, July 11, 2016 2:35 PM