YAMAHA PW50 2015 Owner's Guide

INSTRUMENT AND CONTROL FUNCTIONS
4-4
4
3. Wipe up any spilled fuel immedi- ately. NOTICE: Immediately
wipe off spille d fuel with a clean,
d ry, soft cloth, since fuel may
d eteriorate painte d surfaces or
plastic parts.
[ECA10072]
4. Be sure to securely close the fuel tank cap.
WARNING
EWA15152
Gasoline is poisonous an d can cau-
se injury or death. Han dle gasoline
with care. Never siphon gasoline by
mouth. If you shoul d swallow some
g asoline or inhale a lot of gasoline
vapor, or get some g asoline in your
eyes, see your d octor immediately. If g
asoline spills on your skin, wash
with soap an d water. If gasoline
spills on your clothin g, chan ge your
clothes.
EAU41985
For Cana daNOTICE
ECA15591
Use only unlea ded g asoline. The use
of lead ed g asoline will cause severe
d amag e to internal en gine parts,
such as the piston rin gs as well as to
the exhaust system.Your Yamaha engine has been de-
signed to use regular unleaded gaso-
line with a pump octane number
[(R+M)/2] of 86 or higher, or a research
octane number of 91 or higher. If
knocking (or pinging) occurs, use a
gasoline of a different brand or premi- um unleaded fuel. Use of unleaded fuel
will extend spark plug life and reduce
maintenance cost.
Gasohol
There are two types of gasohol: gaso-
hol containing ethanol and that con-
taining methanol. Gasohol containing
ethanol can be used if ethanol content
does not exceed 10% (E10). Gasohol
containing methanol is not recom-
mended by Yamaha because it can
cause damage to the fuel system or
vehicle performance problems.
For Europe
NOTICE
ECA15591
Use only unlea
ded g asoline. The use
of lead ed g asoline will cause severe
d amag e to internal en gine parts,
such as the piston rin gs as well as to
the exhaust system.
1. Fuel tank filler tube
2. Maximum fuel level
2
1
Recommen
ded fuel:
REGULAR UNLEADED GASOLINE
ONLY
Fuel tank capacity:
2.0 L (0.53 US gal, 0.44 Imp.gal)
Recommen ded fuel:
REGULAR UNLEADED GASOLINE
ONLY
Fuel tank capacity:
2.0 L (0.53 US gal, 0.44 Imp.gal)
U2SA81E0.book Page 4 Monday, June 2, 2014 2:00 PM

INSTRUMENT AND CONTROL FUNCTIONS
4-5
4Your Yamaha engine has been de-
signed to use regular unleaded gaso-
line with a research octane number of
95 or higher. If knocking (or pinging)
occurs, use a gasoline of a different
brand or premium unleaded fuel. Use
of unleaded fuel will extend spark plug
life and reduce maintenance costs.
For Oceania an
d South Africa
NOTICE
ECA15591
Use only unlea ded g asoline. The use
of lead ed g asoline will cause severe
d amag e to internal en gine parts,
such as the piston rin gs as well as to
the exhaust system.Your Yamaha engine has been de-
signed to use regular unleaded gaso-
line with a research octane number of
91 or higher. If knocking (or pinging)
occurs, use a gasoline of a different brand or premium unleaded fuel. Use
of unleaded fuel will extend spark plug
life and reduce maintenance costs.
EAU13414
Fuel tank
breather hoseBefore 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.
Recommen ded fuel:
REGULAR UNLEADED GASOLINE
ONLY
Fuel tank capacity:
2.0 L (0.53 US gal, 0.44 Imp.gal)
1. Fuel tank breather hose
1
U2SA81E0.book Page 5 Monday, June 2, 2014 2:00 PM

INSTRUMENT AND CONTROL FUNCTIONS
4-6
4
EAU13454
2-stroke engine oilMake 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.
EAU40702
Fuel cockThe fuel cock supplies fuel from the
tank to the carburetor while filtering it
also.
The fuel cock has two positions:
S (stop)
With the lever in this position, fuel will
not flow. Always return the lever to this
position when the engine is not run-
ning. O (on)
With the lever in this position, fuel flows
to the carburetor. Normal riding is done
with the lever in this position.
1. 2-stroke engine oil tank cap
2. Minimum level markRecommen
ded oil:
See page 9-1.
Oil quantity: 0.30 L (0.32 US qt, 0.26 Imp.qt)
2 1
1. Arrow mark pointing to “S” (stop)
1
1. Arrow mark pointing to “O” (on)
1
U2SA81E0.book Page 6 Monday, June 2, 2014 2:00 PM

INSTRUMENT AND CONTROL FUNCTIONS
4-7
4
EAU13591
Starter (choke) lever “ ”Starting a cold engine requires a richer
air-fuel mixture, which is supplied by
the starter (choke).
Move the lever in direction (a) to turn on
the starter (choke).
Move the lever in direction (b) to turn
off the starter (choke).
EAU13681
KickstarterTo start the engine, fold out the kick-
starter lever, move it down lightly with
your foot until the gears engage, and
then push it down smoothly but force-
fully.
EAU40921
SeatTo remove the seat1. Remove the mudguard by remov- ing the bolts and washers.
2. Pull the seat off.
To install the seat 1. Insert the projection on the front of the seat into the seat holder as
shown.
1. Starter (choke) lever “ ”
1
(a)
(b)
1. Kickstarter
1
1. Bolt and washer
2. Mudguard
1 2
U2SA81E0.book Page 7 Monday, June 2, 2014 2:00 PM

INSTRUMENT AND CONTROL FUNCTIONS
4-8
4
2. Place the seat in the original posi- tion.
3. Install the mudguard by installing the washers and bolts.
TIPMake sure that the seat is properly se-
cured before riding.
EAU53762
Cable lock (for Europe)Your motorcycle came with an external
anti-theft device to help prevent unau-
thorized use. Please locate the cable
and lock assembly that came with your
motorcycle.
WARNING
EWA16301
Properly stow the ca ble an d lock as-
sem bly insi de a bag or other secure
location before operatin g your mo-
torcycle. Do not han g your ca ble
lock from anywhere on the motorcy-
cle or your person! It may become
entan gle d with the wheels, han dle-
b ars, or other parts of the motorcy-
cle, causin g loss of control an d
possi bly an acci dent.To lock your motorcycle
1. Park your motorcycle in the de- sired location.
2. Make sure that the motorcycle is securely parked. Use the side-
stand/centerstand or other sup- port.
3. Disconnect the cable from the lock assembly. 4. Route one end of the cable
through the rear wheel, and then
insert both ends of the cable into
the lock assembly and lock it.
5. Perform the above steps in re- verse order before riding your mo-
torcycle.
1. Seat holder
2. Projection
12
1. Correct cable and lock assembly use
1
U2SA81E0.book Page 8 Monday, June 2, 2014 2:00 PM

FOR YOUR SAFETY – PRE-OPERATION CHECKS
5-1
5
EAU15598
Inspect your vehicle each time you use it to make sure the vehicle is in safe operating 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 damag e.
Do not operate the vehicle if you fin d any pro blem. If a pro blem cannot be corrected 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 CHECKS PAGE
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. 4-3, 4-5
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
Tr a n s m i s s i o n o i l • 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. 7-9
Front brake • Check operation.
• Lubricate cable if necessary.
• Check lever free play.
• Adjust if necessary. 7-14, 7-15
Rear brake • Check operation.
• Lubricate cable if necessary.
• Check lever free play.
• Adjust if necessary.
7-14, 7-15
U2SA81E0.book Page 1 Monday, June 2, 2014 2:00 PM

FOR YOUR SAFETY – PRE-OPERATION CHECKS
5-2
5
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 ca-
ble and grip housing. 7-12, 7-16
Control ca bles • Make sure that operation is smooth.
• Lubricate if necessary.
7-16
Wheels an d tires • Check for damage.
• Check tire condition and tread depth.
• Check air pressure.
• Correct if necessary. 7-12, 7-14
Brake levers • Make sure that operation is smooth.
• Lubricate lever pivoting points if necessary. 7-17
Centerstan d • Make sure that operation is smooth.
• Lubricate pivot if necessary.
7-17
Chassis fasteners • Make sure that all nuts, bolts and screws are properly tightened.
• Tighten if necessary. —
En gine stop switch • Check operation. 4-1
ITEM CHECKS PAGE
U2SA81E0.book Page 2 Monday, June 2, 2014 2:00 PM

OPERATION AND IMPORTANT RIDING POINTS
6-1
6
EAU15952
Read the Owner’s Manual carefully to
become familiar with all controls. If
there is a control or function you do not
understand, ask your Yamaha dealer.
WARNING
EWA10272
Failure to familiarize yourself with
the controls can lead to loss of con-
trol, which coul d cause an acci dent
or injury.
EAU4088A
Startin g an d warmin g up a
col d en gine1. Turn the fuel cock lever to “O”
(on).
2. Set the engine stop switch to “START”.
3. Turn the starter (choke) on and completely close the throttle. (See
page 4-7.)
4. While applying the front or rear brake, start the engine by pushing
the kickstarter lever down.
5. After starting the engine, move the starter (choke) back halfway.
6. When the engine is warm, turn the starter (choke) off and set the en-
gine stop switch to “RUN”.TIPThe engine is warm when it responds
quickly to the throttle with the starter
(choke) turned off.NOTICE
ECA11043
For maximum en gine life, never ac-
celerate har d when the en gine is
col d!
EAU16661
Startin g a warm en gineFollow the same procedure as for
starting a cold engine with the excep-
tion that the starter (choke) is not re-
quired when the engine is warm.
Instead, start the engine with the throt-
tle slightly open.TIPIf the engine does not start after sever-
al kicks, try again with the throttle 1/4
to 1/2 open.
U2SA81E0.book Page 1 Monday, June 2, 2014 2:00 PM

OPERATION AND IMPORTANT RIDING POINTS
6-2
6
EAU41004
Starting off1. While applying the rear brake le-
ver, push the motorcycle off the
centerstand.
2. Completely close the throttle.
3. Set the engine stop switch to “RUN”.
4. Check for oncoming off-road vehi- cles, release the rear brake lever,
and then slowly turn the throttle
grip in order to take off.
EAU16782
Acceleration an d d ecelerationThe speed can be adjusted by opening
and closing the throttle. To increase
the speed, turn the throttle grip in di-
rection (a). To reduce the speed, turn
the throttle grip in direction (b).
EAU41013
Brakin g
WARNING
EWA14572
Avoi d b rakin g har d or su ddenly
(especially when leanin g over to
one si de), otherwise the motor-
cycle may ski d or overturn.
 Keep in min d that brakin g on
wet surfaces is much more diffi-
cult.
 Ride slowly d own a hill, as brak-
in g d ownhill can be very diffi-
cult.1. Close the throttle completely.
2. Apply both front and rear brakes simultaneously while gradually in-
creasing the pressure.
(a) (b)
U2SA81E0.book Page 2 Monday, June 2, 2014 2:00 PM

OPERATION AND IMPORTANT RIDING POINTS
6-3
6Front
Rear
EAU42031
En
gine break-inThere is never a more important period
in the life of your engine than the first 5
hours of riding. It is also important to
accustom the rider to the motorcycle
during this time. Please read the fol-
lowing information carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
5 hours of operation. The various parts
in the engine wear and polish them-
selves to the correct operating clear-
ances. During this period, prolonged
full-throttle operation or any condition
that might result in engine overheating
must be avoided. However, momen-
tary full-throttle operation under load
(i.e., two to three seconds maximum)
does not harm the engine. Each full-
throttle acceleration should be fol-
lowed with a substantial rest period for
the engine. To allow the engine to cool
down from the temporary buildup of
heat, cruise at a lower engine speed.
After the first 5 hours of operation,
thoroughly check the motorcycle for
loose parts, oil leakage and any other
problems. Be sure to inspect and make adjustments thoroughly, especially ca-
bles. In addition, check all fittings and
fasteners for looseness, and tighten if
necessary.
NOTICE
ECA10271
If any en
gine trou ble shoul d occur
d urin g the en gine break-in perio d,
imme diately have a Yamaha dealer
check the vehicle.
U2SA81E0.book Page 3 Monday, June 2, 2014 2:00 PM