2007 YAMAHA PW50 steering wheel

TABLE OF CONTENTS
SAFETY INFORMATION
...................1-1
Safe riding ........................................1-1
Location of important labels .............1-4
DESCRIPTION
...................................2-1
Left view ...........................................2-1
Right view .........................................2-2
Controls and instruments..................2-3
INSTRUMENT AND CONTROL
FUNCTIONS
........................................3-1
Handlebar switch .............................3-1
Speed limiter and power reduction
plate .............................................3-1
Front brake lever .............................3-2
Rear brake lever ..............................3-3
Fuel tank cap ...................................3-3
Fuel ..................................................3-3
Fuel tank breather hose ...................3-5
2-stroke engine oil ...........................3-5
Fuel cock .........................................3-5
Starter (choke) lever “
1
” .................3-6
Kickstarter ........................................3-6
Seat .................................................3-7
PRE-OPERATION CHECKS
...............4-1
Pre-operation check list ...................4-2
OPERATION AND IMPORTANT
RIDING POINTS
.................................. 5-1
Starting and warming up a cold
engine .......................................... 5-1
Starting a warm engine ................... 5-1
Starting off ....................................... 5-2
Acceleration and deceleration ......... 5-2
Braking ............................................ 5-2
Engine break-in ............................... 5-3
Parking ............................................ 5-4
PERIODIC MAINTENANCE AND
MINOR REPAIR
.................................. 6-1
Owner’s tool kit ................................ 6-1
Periodic maintenance chart for the
emission control system .............. 6-2
General maintenance and lubrication
chart ............................................. 6-3
Checking the spark plug .................. 6-5
Removing the power reduction
plate ............................................. 6-6
Transmission oil .............................. 6-7
Middle and final gear cases ............ 6-8
Cleaning the air filter element ......... 6-8
Cleaning the spark arrester ............. 6-9
Adjusting the carburetor ................ 6-10
Adjusting the engine idling
speed ......................................... 6-10
Checking the throttle cable free
play ............................................ 6-11
Tires .............................................. 6-11Panel wheels ................................. 6-13
Accessories and replacement
parts ........................................... 6-13
Adjusting the front and rear brake
lever free play ............................ 6-14
Checking the front and rear brake
shoes ......................................... 6-15
Checking and lubricating the
cables ........................................ 6-15
Checking and lubricating the throttle
grip and cable ............................ 6-16
Adjusting the Autolube pump ........ 6-16
Lubricating the front and rear brake
levers ......................................... 6-16
Checking and lubricating the
centerstand ................................ 6-17
Checking the front fork .................. 6-17
Checking the steering ................... 6-18
Checking the wheel bearings ........ 6-18
Front wheel ................................... 6-19
Rear wheel .................................... 6-20
Troubleshooting ............................ 6-23
Troubleshooting chart ................... 6-24
MOTORCYCLE CARE AND
STORAGE
........................................... 7-1
Care ................................................ 7-1
Storage ........................................... 7-3
SPECIFICATIONS
............................. 8-1

PERIODIC MAINTENANCE AND MINOR REPAIR
6-3
2
3
4
5
67
8
9

EAU41752
General maintenance and lubrication chart
NO. ITEM CHECK OR MAINTENANCE JOBINITIALTHEREAFTER
EVERY
1
month3
months6
months6
months12
months
1*Front brake
Check operation.Adjust brake lever free play.Replace brake shoes. Whenever worn to the limit
2*Rear brakeCheck operation.Adjust brake lever free play.Replace brake shoes. Whenever worn to the limit
3*WheelsCheck runout and for damage.Replace if necessary.
4*TiresCheck tread depth and for damage.Replace if necessary.Check air pressure.Correct if necessary.
5*Wheel bearingsCheck bearings for smooth operation.Replace if necessary.
6*Steering bearingsCheck bearing assemblies for looseness.Moderately repack with lithium-soap-based
grease every 2 years.
7*Middle and final gear
casesCheck for grease leakage.Check gears for damage and wear.Lubricate gears with lithium-soap-based grease.Every 2 years
8*Chassis fastenersCheck all chassis fitting and fasteners.Correct if necessary.
9*Autolube pumpCheck operation.Correct if necessary.Bleed.

PERIODIC MAINTENANCE AND MINOR REPAIR
6-18
1
2
3
4
5
6
7
8
9

EAU23280
Checking the steering
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 pe-
riodic maintenance and lubrication
chart.
1. Place a stand under the engine to
raise the front wheel off the
ground.
WARNING

EWA10750
Securely support the vehicle so that
there is no danger of it falling over.
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 steering.
EAU23290
Checking the wheel bearings
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.

INDEX
A
Acceleration and deceleration ...................5-2
Accessories and replacement parts ........6-13
Air filter element, cleaning .........................6-8
Autolube pump, adjusting ........................6-16
B
Brake lever, front .......................................3-2
Brake lever, rear ........................................3-3
Brake levers, lubricating ..........................6-16
Brake shoes, checking ............................6-15
Braking ......................................................5-2
C
Cables, checking and lubricating .............6-15
Carburetor, adjusting ...............................6-10
Care ...........................................................7-1
Centerstand, checking and lubricating ....6-17
E
Engine break-in .........................................5-3
Engine idling speed .................................6-10
Engine oil ...................................................3-5
Engine, starting a warm .............................5-1
Engine stop switch.....................................3-1
F
Front and rear brake lever free play,
adjusting ................................................6-14
Front fork, checking .................................6-17
Fuel ............................................................3-3
Fuel cock ...................................................3-5
Fuel tank breather hose.............................3-5
Fuel tank cap .............................................3-3
H
Handlebar switch .......................................3-1
I
Identification numbers ...............................9-1
K
Kickstarter ................................................. 3-6
L
Labels, location of ..................................... 1-4
M
Maintenance and lubrication, periodic ....... 6-3
Maintenance, emission control system ..... 6-2
Middle and final gear cases....................... 6-8
Model label ................................................ 9-1
P
Parking ...................................................... 5-4
Part locations............................................. 2-1
Power reduction plate, removing ............... 6-6
Pre-operation check list ............................. 4-2
S
Safety information ..................................... 1-1
Seat ........................................................... 3-7
Spark arrester, cleaning ............................ 6-9
Spark plug, checking ................................. 6-5
Specifications ............................................ 8-1
Speed limiter and power reduction plate ... 3-1
Starter (choke) lever .................................. 3-6
Starting and warming up a cold engine ..... 5-1
Starting off ................................................. 5-2
Steering, checking ................................... 6-18
Storage ...................................................... 7-3
T
Throttle cable free play, checking............ 6-11
Throttle grip and cable, checking and
lubricating .............................................. 6-16
Tires ........................................................ 6-11
Tool kit ....................................................... 6-1
Transmission oil ........................................ 6-7
Troubleshooting....................................... 6-23Troubleshooting chart ............................. 6-24
V
Vehicle identification number .................... 9-1
W
Wheel bearings, checking ....................... 6-18
Wheel (front) ........................................... 6-19
Wheel (rear) ............................................ 6-20
Wheels .................................................... 6-13