2016 YAMAHA PW50 stop start

Description
3-1
3
EAU63371
Left view
1234
56
1. Spark plug (page 7-6)
2. Fuel cock (page 4-7)
3. Throttle stop screw (page 7-12)
4. Air filter element (page 7-10)
5. Kickstarter (page 4-8)
6. Centerstand (page 7-20)
U2SA82E0.book Page 1 Monday, June 8, 2015 1:09 PM

Description
3-3
3
EAU63401
Controls and instruments
1
234
5
1. Rear brake lever (page 4-3)
2. Starter (choke) lever (page 4-7)
3. Engine stop switch (page 4-1)
4. Front brake lever (page 4-2)
5. Throttle grip (page 7-13)
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Instrument and control functions
4-1
4
EAU40661
Han dle bar switch
EAU40675En gine stop switch
“OFF/RUN/START”
Set this switch to “START” before
starting the engine. Set this switch to
“RUN” after warming up the engine or
before starting off. Set this switch to
“OFF” to stop the engine.
TIP
 The engine cannot be started with
this switch set to the “RUN” posi-
tion.
 The engine speed is limited while
this switch is set to the “START”
position, therefore the motorcycle
cannot be ridden in that switch
position.
EAU41045
Spee d limiter an d power re-
d uction plate
Your motorcycle is equipped with an
adjustable speed limiter and a power
reduction plate. The speed limiter
keeps the throttle from fully opening,
even when the throttle grip is turned to
the maximum. The power reduction
plate is installed in the exhaust mani-
fold to limit the amount of power avail-
able while learning.
Speed limiter
1. Loosen the locknut.
2. To increase the maximum engine power available and the maximum
speed of the motorcycle, turn the
adjusting screw in direction (a). To
decrease the maximum engine
power available and the maximum
speed of the motorcycle, turn the
adjusting screw in direction (b).
3. Tighten the locknut.
1. Engine stop switch “OFF/RUN/START”
1
1. Locknut
2. Adjusting screw
1
(a) (b)2
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Instrument and control functions
4-7
4
EAU40702
Fuel cock
The 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.
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).
1. Arrow mark pointing to “S” (stop)
1. Arrow mark pointing to “O” (on)
1
1
1. Starter (choke) lever “ ”
1
(a)
(b)
U2SA82E0.book Page 7 Monday, June 8, 2015 1:09 PM

Operation and important rid ing 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 lea d 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 gine
1. 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”.
TIP
The 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!
U2SA82E0.book Page 1 Monday, June 8, 2015 1:09 PM

Operation and important ri din g points
6-2
6
EAU16661
Startin g a warm en gine
Follow 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.
TIP
If the engine does not start after sever-
al kicks, try again with the throttle 1/4
to 1/2 open.
EAU41004
Startin g off
1. 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.
U2SA82E0.book Page 2 Monday, June 8, 2015 1:09 PM

Periodic maintenance an d a djustment
7-12
7
EAU39931
A djustin g the car buretor
The carburetor is an important part of
the engine and requires very sophisti-
cated adjustment. Therefore, most
carburetor adjustments should be left
to a Yamaha dealer, who has the nec-
essary professional knowledge and ex-
perience. The adjustment described in
the following section, however, may be
serviced by the owner as part of rou-
tine maintenance.
NOTICE
ECA10551
The car buretor has been set an d ex-
tensively teste d at the Yamaha fac-
tory. Chan gin g these settin gs
without sufficient technical knowl-
e dge may result in poor perfor-
mance of or damag e to the en gine.
EAU21363
A djustin g the en gine i dlin g
spee d
The engine idling speed must be
checked and, if necessary, adjusted as
follows at the intervals specified in the
periodic maintenance and lubrication
chart.
TIP
A diagnostic tachometer is needed to
make this adjustment.
1. Attach the tachometer to the
spark plug lead.
2. Start the engine and warm it up for several minutes at 1000–2000
r/min while occasionally revving it
to 4000–5000 r/min.
TIP
The engine is warm when it quickly re-
sponds to the throttle.
3. Check the engine idling speedand, if necessary, adjust it to
specification by turning the throt-
tle stop screw. To increase the en-
gine idling speed, turn the screw in
direction (a). To decrease the en-
gine idling speed, turn the screw in
direction (b).
1. Throttle stop screw
1 (a)
(b)
U2SA82E0.book Page 12 Monday, June 8, 2015 1:09 PM

11-1
11
Index
A
Acceleration and deceleration ................ 6-3
Air filter element, cleaning .................... 7-10
Autolube pump, adjusting..................... 7-19
B
Brake lever, front .................................... 4-2
Brake lever, rear...................................... 4-3
Brake levers, lubricating ....................... 7-20
Brake shoes, checking ......................... 7-17
Braking.................................................... 6-3
C
Cable lock (for Europe) ........................... 4-9
Cables, checking and lubricating ......... 7-18
Carburetor, adjusting ............................ 7-12
Care ........................................................ 8-1
Centerstand, checking and
lubricating ........................................... 7-20
E
Engine break-in....................................... 6-4
Engine idling speed .............................. 7-12
Engine oil ................................................ 4-6
Engine serial number ............................ 10-1
Engine, starting a warm .......................... 6-2
Engine stop switch ................................. 4-1
F
Front and rear brake lever free play, adjusting ............................................. 7-16
Front fork, checking .............................. 7-21
Fuel ......................................................... 4-4
Fuel cock ................................................ 4-7
Fuel tank breather hose .......................... 4-6
Fuel tank cap .......................................... 4-3
H
Handlebar switch .................................... 4-1
I
Identification numbers .......................... 10-1
K
Kickstarter............................................... 4-8
L
Labels, location....................................... 1-1
M
Maintenance and lubrication, periodic ... 7-4
Maintenance, emission control system .................................................. 7-3
Matte color, caution ................................ 8-1
Middle and final gear cases .................... 7-9
Model label ........................................... 10-1
P
Parking .................................................... 6-4
Part locations .......................................... 3-1 Power reduction plate, removing ........... 7-7
S
Safety information .................................. 2-1
Seat ........................................................ 4-8
Spark arrester, cleaning ....................... 7-11
Spark plug, checking ............................. 7-6
Specifications ......................................... 9-1
Speed limiter and power reduction
plate ..................................................... 4-1
Starter (choke) lever ............................... 4-7
Starting and warming up a cold engine .................................................. 6-1
Starting off.............................................. 6-2
Steering, checking................................ 7-21
Storage ................................................... 8-3
T
Throttle grip and cable, checking and
lubricating .......................................... 7-19
Throttle grip free play, checking........... 7-13
Tires ...................................................... 7-14
Tool kit.................................................... 7-2
Transmission oil ..................................... 7-8
Troubleshooting ................................... 7-26
Troubleshooting chart .......................... 7-27
V
Vehicle Emission Control Information label (For Canada) .............................. 10-2
Vehicle identification number ............... 10-1
W
Wheel bearings, checking .................... 7-22
Wheel (front) ......................................... 7-22
Wheel (rear) .......................................... 7-24
Wheels .................................................. 7-16
U2SA82E0.book Page 1 Monday, June 8, 2015 1:09 PM