2014 YAMAHA YBR125 fuel consumption
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TABLE OF CONTENTSSAFETY INFORMATION.................. 1-1
DESCRIPTION .................................. 2-1
Left view ......................................... 2-1
Right view ....................................... 2-2
Controls and instruments ............... 2-3
INSTRUMENT AND CONTROL
FUNCTIONS ...................................... 3-1
Main switch/steering lock............... 3-1
Indicator lights and warning light ... 3-2
Speedometer unit ........................... 3-3
Tachometer .................................... 3-3
Self-diagnosis device ..................... 3-3
Fuel gauge ...................................... 3-4
Handlebar switches ........................ 3-4
Clutch lever .................................... 3-5
Shift pedal ...................................... 3-5
Brake lever...................................... 3-5
Brake pedal .................................... 3-6
Fuel tank cap .................................. 3-6
Fuel ................................................. 3-7
Catalytic converters........................ 3-8
Kickstarter ...................................... 3-9
Adjusting the shock absorber assemblies .................................. 3-9
Carrier ........................................... 3-10
Sidestand ..................................... 3-10
Ignition circuit cut-off system ....... 3-11 FOR YOUR SAFETY –
PRE-OPERATION CHECKS
............. 4-1
OPERATION AND IMPORTANT
RIDING POINTS ................................ 5-1
Starting the engine .......................... 5-1
Shifting ............................................ 5-2
Tips for reducing fuel consumption ................................ 5-3
Engine break-in ............................... 5-3
Parking ............................................ 5-4
PERIODIC MAINTENANCE AND
ADJUSTMENT ................................... 6-1
Owner’s tool kit ............................... 6-2
Periodic maintenance chart for the emission control system .............. 6-3
General maintenance and lubrication chart ........................... 6-4
Removing and installing panels ...... 6-7
Checking the spark plug ................. 6-8
Engine oil....................................... 6-10
Cleaning the air filter element ....... 6-11
Checking the engine idling
speed ......................................... 6-13
Checking the throttle grip free
play ............................................ 6-13
Valve clearance ............................. 6-14
Tires .............................................. 6-14
Cast wheels................................... 6-16 Adjusting the clutch lever free
play ............................................ 6-16
Checking the brake lever free play ............................................ 6-17
Adjusting the brake pedal free
play ............................................ 6-18
Checking the shift pedal ............... 6-18
Brake light switches ..................... 6-19
Checking the front brake pads and rear brake shoes ............... 6-19
Checking the brake fluid level ...... 6-20
Changing the brake fluid .............. 6-21
Drive chain slack........................... 6-21
Cleaning and lubricating the drive
chain.......................................... 6-23
Checking and lubricating the cables ........................................ 6-24
Checking and lubricating the throttle grip and cable ............... 6-24
Checking and lubricating the
brake and clutch levers ............. 6-24
Checking and lubricating the brake pedal ............................... 6-25
Checking and lubricating the centerstand and sidestand........ 6-25
Lubricating the swingarm
pivots......................................... 6-26
Checking the front fork ................. 6-26
Checking the steering................... 6-27
Checking the wheel bearings ....... 6-27
Battery .......................................... 6-28U51DE1E0.book Page 1 Thursday, August 29, 2013 4:41 PM
Page 32 of 84
OPERATION AND IMPORTANT RIDING POINTS
5-3
5
EAU16811
Tips for reducin g fuel con-
sumptionFuel consumption depends largely on
your riding style. Consider the follow-
ing tips to reduce fuel consumption:
Shift up swiftly, and avoid high en-
gine speeds during acceleration.
Do not rev the engine while shift-
ing down, and avoid high engine
speeds with no load on the en-
gine.
Turn the engine off instead of let-
ting it idle for an extended length
of time (e.g., in traffic jams, at traf-
fic lights or at railroad crossings).
EAU16831
Engine break-inThere is never a more important period
in the life of your engine than the period
between 0 and 1000 km (600 mi). For
this reason, you should read the fol-
lowing material carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
1000 km (600 mi). The various parts in
the engine wear and polish themselves
to the correct operating clearances.
During this period, prolonged full-throt-
tle operation or any condition that
might result in engine overheating
must be avoided.
EAU49211
0–150 km (0–90 mi)
Avoid prolonged operation above 5000
r/min.
After every hour of operation, stop the
engine, and then let it cool for five to
ten minutes.
Vary the engine speed from time to
time. Do not operate the engine at one
set throttle position. 150–500 km (90–300 mi)
Avoid prolonged operation above 6000
r/min.
Rev the engine freely through the
gears, but do not use full throttle at any
time.
500–1000 km (300–600 mi)
Avoid prolonged full-throttle operation.
Avoid prolonged operation above 7500
r/min.
NOTICE: After 1000 km (600
mi) of operation, the en gine oil must
b e chan ged .
[ECA10282]
1000 km (600 mi) an d b eyon d
The vehicle can now be operated nor-
mally.NOTICE
ECA10311
Keep the en gine spee d out of
the tachometer red zone.
If any en gine trou ble shoul d oc-
cur during the en gine break-in
period , imme diately have a
Yamaha dealer check the vehi-
cle.
U51DE1E0.book Page 3 Thursday, August 29, 2013 4:41 PM
Page 80 of 84
10-1
10
INDEXAAir filter element, cleaning .................... 6-11
Auxiliary light bulb, replacing ................ 6-32BBattery .................................................. 6-28
Brake and clutch levers, checking and lubricating ........................................... 6-24
Brake fluid, changing ............................ 6-21
Brake fluid level, checking .................... 6-20
Brake lever .............................................. 3-5
Brake lever free play, checking............. 6-17
Brake light switches.............................. 6-19
Brake pads and shoes, checking ......... 6-19
Brake pedal............................................. 3-6
Brake pedal, checking and
lubricating ........................................... 6-25
Brake pedal free play, adjusting ........... 6-18CCables, checking and lubricating ......... 6-24
Care ........................................................ 7-1
Carrier ................................................... 3-10
Catalytic converters ................................ 3-8
Centerstand and sidestand, checking
and lubricating .................................... 6-25
Clutch lever ............................................. 3-5
Clutch lever free play, adjusting ........... 6-16DDimmer switch ........................................ 3-4
Drive chain, cleaning and lubricating .... 6-23
Drive chain slack................................... 6-21EEngine break-in....................................... 5-3
Engine idling speed, checking .............. 6-13
Engine oil .............................................. 6-10 Engine trouble warning light ................... 3-2
FFront fork, checking ............................. 6-26
Fuel ......................................................... 3-7
Fuel consumption, tips for reducing ...... 5-3
Fuel gauge .............................................. 3-4
Fuel tank cap .......................................... 3-6
Fuse, replacing ..................................... 6-29HHandlebar switches ................................ 3-4
Headlight bulb, replacing ..................... 6-30
High beam indicator light ....................... 3-2
Horn switch ............................................ 3-4IIdentification numbers ............................ 9-1
Ignition circuit cut-off system ............... 3-11
Indicator lights and warning light ........... 3-2KKickstarter .............................................. 3-9MMain switch/steering lock....................... 3-1
Maintenance and lubrication, periodic ... 6-4
Maintenance, emission control
system.................................................. 6-3
Matte color, caution ............................... 7-1
Model label ............................................. 9-1NNeutral indicator light ............................. 3-2PPanels, removing and installing .............. 6-7
Parking ................................................... 5-4
Part locations ......................................... 2-1SSafety information .................................. 1-1 Self-diagnosis device..............................3-3
Shifting ....................................................5-2
Shift pedal ...............................................3-5
Shift pedal, checking ............................6-18
Shock absorber assemblies, adjusting ...3-9
Sidestand ..............................................3-10
Spark plug, checking ..............................6-8
Specifications .........................................8-1
Speedometer unit ...................................3-3
Starting the engine ..................................5-1
Start switch .............................................3-4
Steering, checking ................................6-27
Storage ...................................................7-4
Swingarm pivots, lubricating ................6-26
TTachometer .............................................3-3
Tail/brake light bulb, replacing..............6-31
Throttle grip and cable, checking and
lubricating ...........................................6-24
Throttle grip free play, checking ...........6-13
Tires ......................................................6-14
Tool kit ....................................................6-2
Troubleshooting ....................................6-36
Troubleshooting chart ...........................6-38
Turn signal indicator lights ......................3-2
Turn signal light bulb, replacing ............6-32
Turn signal switch ...................................3-4VValve clearance .....................................6-14
Vehicle identification number ..................9-1WWheel bearings, checking .....................6-27
Wheel (front) ..........................................6-33
Wheel (rear) ...........................................6-35
U51DE1E0.book Page 1 Thursday, August 29, 2013 4:41 PM