ECU YAMAHA PW50 2016 Owners Manual

Safety information
2-3
2ventilated areas. If you experience any
symptoms of carbon monoxide poi-
soning, leave the area immediately, get
fresh air, and SEEK MEDICAL TREAT-
MENT.
 Do not run engine indoors. Even if
you try to ventilate engine exhaust
with fans or open windows and
doors, carbon monoxide can rap-
idly reach dangerous levels.
 Do not run engine in poorly venti-
lated or partially enclosed areas
such as barns, garages, or car-
ports.
 Do not run engine outdoors where
engine exhaust can be drawn into
a building through openings such
as windows and doors.
Loa din g
Adding accessories to your motorcycle
can adversely affect stability and han-
dling if the weight distribution of the
motorcycle is changed. To avoid the
possibility of an accident, use extreme
caution when adding accessories to
your motorcycle. Use extra care when
riding a motorcycle that has added ac-
cessories. Here are some general
guidelines to follow if adding accesso-
ries to your motorcycle:
Operation of an overloa ded vehicle
coul d cause an acci dent.
 The weight of the operator must
not exceed 25 kg (55 lb).
 Accessory weight should be kept
as low and close to the motorcy-
cle as possible. Securely pack
your heaviest items as close to the
center of the vehicle as possible
and make sure to distribute the weight as evenly as possible on
both sides of the motorcycle to
minimize imbalance or instability.
 Shifting weights can create a sud-
den imbalance. Make sure that
accessories are securely attached
to the motorcycle before riding.
Check accessory mounts fre-
quently.
• Properly adjust the suspension for your load (suspension-ad-
justable models only), and
check the condition and pres-
sure of your tires.
• Never attach any large or heavy items to the handlebar, front
fork, or front fender.
Genuine Yamaha Accessories
Choosing accessories for your vehicle
is an important decision. Genuine
Yamaha accessories, which are avail- able only from a Yamaha dealer, have
been designed, tested, and approved
by Yamaha for use on your vehicle.
Many companies with no connection
to Yamaha manufacture parts and ac-
cessories or offer other modifications
for Yamaha vehicles. Yamaha is not in
a position to test the products that
these aftermarket companies produce.
Therefore, Yamaha can neither en-
dorse nor recommend the use of ac-
cessories not sold by Yamaha or
modifications not specifically recom-
mended by Yamaha, even if sold and
installed by a Yamaha dealer.
U2SA82E0.book Page 3 Monday, June 8, 2015 1:09 PM

Safety information
2-5
2
Point the front wheel straight
ahead on the trailer or in the truck
bed, and choke it in a rail to pre-
vent movement.
 Shift the transmission in gear (for
models with a manual transmis-
sion).
 Secure the motorcycle with tie-
downs or suitable straps that are
attached to solid parts of the mo-
torcycle, such as the frame or up-
per front fork triple clamp (and not,
for example, to rubber-mounted
handlebars or turn signals, or
parts that could break). Choose
the location for the straps carefully
so the straps will not rub against
painted surfaces during transport.
 The suspension should be com-
pressed somewhat by the tie-
downs, if possible, so that the mo-
torcycle will not bounce exces-
sively during transport.
U2SA82E0.book Page 5 Monday, June 8, 2015 1:09 PM

Instrument and control functions
4-4
4
EAU13213
Fuel
Make sure there is sufficient gasoline in
the tank.
WARNING
EWA10882
Gasoline an d gasoline vapors are
extremely flamma ble. To avoi d fires
an d explosions an d to re duce the
risk of injury when refuelin g, follow
these instructions.
1. Before refueling, turn off the en- gine and be sure that no one is sit-
ting on the vehicle. Never refuel
while smoking, or while in the vi-
cinity of sparks, open flames, or
other sources of ignition such as
the pilot lights of water heaters
and clothes dryers.
2. Do not overfill the fuel tank. Stop filling when the fuel reaches the
bottom of the filler tube. Because
fuel expands when it heats up,
heat from the engine or the sun
can cause fuel to spill out of the
fuel tank.
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 doctor imme diately. If
g asoline spills on your skin, wash
with soap an d water. If gasoline
spills on your clothin g, chan ge your
clothes.
EAU41986
For Cana da
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 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 a1. Fuel tank filler tube
2. Maximum fuel level
2
1
Recommen
ded fuel:
REGULAR UNLEADED GASOLINE
ONLY
Fuel tank capacity: 2.0 L (0.5 US gal, 0.4 Imp.gal)
U2SA82E0.book Page 4 Monday, June 8, 2015 1:09 PM

Instrument and control functions
4-9
4
TIP
Make sure that the seat is properly se-
cured before riding.
EAU53762
Ca ble 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 b ag 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.
U2SA82E0.book Page 9 Monday, June 8, 2015 1:09 PM

Periodic maintenance an d a djustment
7-19
7
EAU23115
Checkin g an d lu bricatin g the
throttle grip an d ca ble
The operation of the throttle grip
should be checked before each ride. In
addition, the cable should be lubricat-
ed by a Yamaha dealer at the intervals
specified in the periodic maintenance
chart.
The throttle cable is equipped with a
rubber cover. Make sure that the cover
is securely installed. Even though the
cover is installed correctly, it does not
completely protect the cable from wa-
ter entry. Therefore, use care not to
pour water directly onto the cover or
cable when washing the vehicle. If the
cable or cover becomes dirty, wipe
clean with a moist cloth.
EAU23121
A djustin g the Autolu be pump
The Autolube pump is a vital and so-
phisticated component of the engine,
which must be adjusted by a Yamaha
dealer at the intervals specified in the
periodic maintenance and lubrication
chart.
U2SA82E0.book Page 19 Monday, June 8, 2015 1:09 PM

Periodic maintenance an d a djustment
7-21
7
EAU42082
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
and damage.
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 d amage is foun d or the front
fork does not operate smoothly,
have a Yamaha dealer check or re-
pair it.
EAU45512
Checkin g the steerin g
Worn or loose steering bearings may
cause danger. Therefore, the operation
of the steering must be checked as fol-
lows at the intervals specified in the
periodic maintenance and lubrication
chart.
1. Place the vehicle on the center- stand. WARNING! To avoi d inju-
ry, securely support the vehicle
so there is no dan ger of it fallin g
over.
[EWA10752]
2. Hold the lower ends of the front fork legs and try to move them for-
ward and backward. If any free
play can be felt, have a Yamaha
dealer check or repair the steer-
ing.
U2SA82E0.book Page 21 Monday, June 8, 2015 1:09 PM

Periodic maintenance an d a djustment
7-22
7
EAU23292
Checkin g the wheel b earings
The front and rear wheel bearings must
be checked at the intervals specified in
the periodic maintenance and lubrica-
tion chart. If there is play in the wheel
hub or if the wheel does not turn
smoothly, have a Yamaha dealer
check the wheel bearings.
EAU24361
Front wheel
EAU56510
To remove the front wheel
WARNING
EWA10822
To avoi d injury, securely support the
vehicle so there is no dan ger of it
fallin g over.
1. Place the motorcycle on the cen-
terstand.
2. Disconnect the brake cable at the wheel hub by removing the front
brake lever free play adjusting nut,
then removing the cable from the
brake camshaft lever and brake
shoe plate.
3. Remove the axle nut and washer.
4. Pull the wheel axle out, and then remove the wheel.
1. Brake camshaft lever
2. Brake shoe plate
3. Washer
4. Axle nut
5. Brake cable
6. Front brake lever free play adjusting nut
5
6
1 3
4
2
U2SA82E0.book Page 22 Monday, June 8, 2015 1:09 PM

Periodic maintenance an d a djustment
7-24
7
EAU25081
Rear wheel
EAU56822
To remove the rear wheel
WARNING
EWA10822
To avoi d injury, securely support the
vehicle so there is no d anger of it
fallin g over.
1. Place the motorcycle on the cen-
terstand.
2. Remove the seat. (See page 4-8.)
3. Remove the muffler bolt and washers. WARNING! Always let
the exhaust system cool prior to
touchin g exhaust components.
[EWA14582]
4. Slide the spring clamp down, and
then remove the muffler.
5. Remove the exhaust chamber bolt and washers. 6. Remove the exhaust manifold
bolts, and then remove the ex-
haust chamber, the power reduc-
tion plate and the gasket.
7. Remove the right-side rear shock absorber mounting bolt and then
tilt the rear shock absorber up-
ward as shown.
1. Muffler
2. Washer
3. Muffler bolt
4. Spring clamp
312 4
1. Exhaust chamber
2. Exhaust chamber bolt
3. Washer
1. Exhaust manifold bolt
1. Rear shock absorber mounting bolt
2
1
3
1
1
U2SA82E0.book Page 24 Monday, June 8, 2015 1:09 PM