2007 YAMAHA YBR125 engine

Always wipe off spilled fuel
immediately with a dry and clean
soft cloth. Fuel may deteriorate
painted surfaces or plastic parts.
Recommended Fuel :
Fuel tank capacity :Regular gasoline (Petrol)
Total :
13.0 L
Reserve :
1.7 L
1. Arrow markFuel cockThe fuel cock supplies fuel from the
tank to the carburetor while filtering it
also.
The fuel cock has three positions,
which should be set as shown in the
illustrations.
OFF: With the fuel cock in this
position, fuel will not flow.
Always set the fuel cock to this
position when the engine is not
running.
1. Arrow markON: With the fuel cock in this
position, fuel flows to the
carburettor. Set the fuel cock to
this position when starting the
engine and while riding.
INSTRUMENT AND CONTROL FUNCTIONS
3-6
CAUTION :
IT IS A GOOD PRACTICE TO RETURN THE FUEL COCK LEVER TO
"Off" POSITION WHEN ENGINE IS NOT RUNNING
OFF
1
1
ON

1. Arrow markRES: This indicates reserve. If you
run out of fuel while riding, set
the fuel cock to this position.
Fill the tank at the first
opportunity. Be sure to set the
fuel cock back to "ON" after
refueling
1. Kick starterKick-starterRaise the right Pillion footrest, and
rotate the kick starter away from the
engine. Push the starter down
lightly with your foot Kick until the
gears engage, then kick smoothly and
forcefully to start the engine. This
model has a primary-coupled kick
starter so the engine can be started in
any gear if the clutch is disengaged.
However, shifting to neutral before
starting is recommended.kick
INSTRUMENT AND CONTROL FUNCTIONS
3-7
NEVER MIX OIL IN PETROL1. Starter leverStarter leverStarting a cold engine requires a
richer air-fuel mixture. A separate
starter circuit supplies this mixture.
Move the Starter Lever in
Direction a to Turn on the Starter
Move the Starter Lever in
Direction b to Turn Off the Starter
RES
1

PRE-OPERATION CHECKS
4-1
Owners are personally responsible for their vehicle's condition. Your Motorcycle's vital functions can start to
deteriorate quickly and unexpectedly- even if it remains unused (for instance, if it is exposed to the elements). Any
damage. fluid leak or loss of tyre pressure could have serious consequence Therefore' it is very important that, in
addition to a thorough visual inspection, you check the following points before each ride.
PRE - OPERATION CHECK LIST
Brake and shift pedal shafts Engine oil
Control and meter cable Wheels and tyres Drive chain Clutch
Throttle grip and housing Rear brake Front brake
Lubricate if necessary.Check tyre pressure, wear, damage and spoke tightness.
Lubricate if necessary. Check for smooth operation. Lubricate if necessary.
Check for smooth operation. Tighten spokes if necessary. Adjust if necessary.
6-21
6-22 6-13 ~ 6-15 6-18 ~ 6-21
Check oil level.
Fill with oil if necessary.
Check chain slack and condition. Check operation, condition and free play.
Adjust if necessary.
Lubricate if necessary. Check for smooth operation. Adjust if necessary.
Check operation, condition and free play.Adjust if necessary. Check operation, condition and free play.
ITEM
CHECKS
6-8 ~ 6-9 6-12, 6-213-3, 6-16
3-4, 6-17
3-4, 6-16PAGE

If any item in the Pre-Operation Check is not working properly, have it inspected and repaired before operating
the Motorcycle.WARNINGFuel gauge
Check for proper operation
/Function
3.2
PRE-OPERATION CHECKS
4-2
Fuel Tank Brake and clutch lever pivots
Battery Lights, signals and switches Chassis fasteners Center and sidestand pivot
Make sure that all nuts, bolts, and screws are properly tightened.
Tighten if necessary.
Check fuel level.
Fill with fuel if necessary.
Fill with distilled water if necessary. Check fluid level. Check for proper operation.
6-24~ 6-26 3-3, 6-27 ~ 6-283-5 ~ 3-7
Lubricate if necessary. Check for smooth operation.
Lubricate if necessary. Check for smooth operation.
ITEM CHECKS
6-22PAGE6-22
-
IF WAITING AT TRAFFIC SIGNAL IS FOR LONG, SWITCH OFF THE ENGINE
TO PROTECT THE ENVIRONMENT AND TO LOWER FUEL CONSUMPTION

OPERATION AND IMPORTANT RIDING POINTS
1. Before riding this Motorcycle,
become thoroughly familiar
with all operating controls and
their functions. Consult a
YAMAHA dealer regarding any
control or function that you do
not thoroughly understand.
2. Never start your engine or let it
run for any length of time in a
closed area. The exhaust fumes
are poisonous and can cause
loss of consciousness.
Always operate your
Motorcycle in an area with
adequate ventilation.
3. Before starting out, always be
sure the side stand is up.
Failure to retract the side stand
completely can result in a
serious accident when you try
to turn a corner.
Starting and warming up a
cold engine1. Turn the fuel cock to "ON"
2. Turn the main switch to "ON."
3. Shift the transmission into
neutral.
When the transmission is in neutral,
the neutral indicator light should be on.
If the light does not come on, ask a
YAMAHA dealer to inspect it.
4 Fully open the Starter Lever and
completely close the throttle grip.
5. Kick the kick starter to start the
engine.
6. After starting the Engine, turn back
the Starter Lever to the Warming-
up Position (About Half way)7. After Warming-up the Engine,
turn off the Starter Lever
completely.
For better engine performance
always warm up the engine. before
take off. Never open throttle fully
when engine is cold, otherwise
engine tends to stop.
The engine is warm when it
responds normally to the throttle
with the Starter Lever in “OFF”
direction.
5-1
WARNING
NOTE :
NOTE :NOTE :

OPERATION AND IMPORTANT RIDING POINTSStarting a warm engine.The Starter Lever may not be required
when the engine is warm.
See the "Running-in" section prior
to operating the Motorcycle for the
first time.
a Shift pedal
N. Neutral, 1,2,3,4 Gear Shift PositionShiftingThe transmission lets you control the
amount of power you have available
at a given speed for starting,
accelerating, climbing hills, etc. The
use of the shift pedal is shown in the
illustration.
To shift into neutral, depress the shift
pedal repeatedly until it reach- es
the end of its travel, then raise the
pedal slightly..
Do not ride downhill with
Ignition Switch in “OFF”
Position & in Neutral Gear.
Always ride motor cycle with
Ignition Switch in “ON”
Position & in Neutral Gear.
Always use the clutch when
changing gears. The engine,
transmission, and driveline are
not designed to withstand the
shock of forced shifting and
can be damaged by shifting
without using the clutch.
5-2
CAUTION :
CAUTION :
NEVER RIDE MOTORCYCLE WITH CLUTCH PARTIALLY ENGAGED.

OPERATION AND IMPORTANT RIDING POINTS
Tips for reducing fuel
consumptionYour Motorcycle's fuel consumption
depends to a large extent on your
riding style. The following tips can
help reduce fuel consumption:
1. Warm up the engine before riding.
2. Move the strater Lever to “Off” as
soon as possible.
3. Shift up swiftly and avoid high
engine speeds during
acceleration.
4. Do not double-clutch or rev the
engine while shifting down and
avoid high engine speeds with no
load on the engine.
5. Turn off the engine instead of
letting it idle for an extended
length of time, i.e. in traffic jams, at
traffic lights or rail- road crossings.
6. Do not drive with excessive load
on the Motorcycle.
7. Plan your route in advance.
Running-inThere is never a more important
period in the life of your Motorcycle
than the period between zero and
1,000 kms. For this reason we ask
that you carefully read the following
material. Because the engine is brand
new, you must not put an excessive
load on it for the first 1,000 kms. The
various parts in the engine wear and
polish themselves to the correct
operating clearances. During this
period, prolonged full throttle
operation, or any condition which
might result in excessive heating of
the engine, must be avoided.Be sure to replace the engine
oil as per recommended
schedule.
1,000 kms and below :
Avoid prolonged full-throttle
operation. Vary speed
occasionally.
5-3
CAUTION :
8. Avoid frequent braking.
9. Always maintain your tyre
pressure as per recommendation
10. Get your motorcycle serviced
periodically after every 2000 kms.
If any engine trouble should occur
during the "Running-in" period,
consult a YAMAHA dealer
immediately.
CAUTION :

OPERATION AND IMPORTANT RIDING POINTS
IT IS NOT RECOMMENDED TO RIDE THE MOTORCYCLE WITH
CONSTANT THROTTLE OPENING FOR VERY LONG DISTANCE
5-4
ParkingWhen parking the Motorcycle, stop
the engine and remove the ignition
key. Turn the fuel cock to "OFF"
whenever stopping the engine.
The exhaust system is hot. Park
the Motorcycle in a place where
pedestrians or children are not
likely to touch the Motorcycle. Do
not park the Motorcycle on a slope
or soft ground; the Motorcycle
may overturn.
WARNING