2007 YAMAHA YBR125 transmission

INSTRUMENT AND CONTROL FUNCTIONS
3-2
1. Turn indicator light “ ”
2. Neutral ”N”
3. High beam.Indicator light “ ” 1. Speedometer
2. Odometer1. Fuel gauge
1
1
2SpeedometerThe speedometer shows riding
speed.
This speedometer is equipped with
an odometer.
Fuel gaugeThe fuel gauge indicates the quantity
of the remaining petrol in the fuel tank.
The gauge needle moves from “F”
(Full) to"E”(Empty) as the fuel level
decreases.
When the needle comes below “E”
please refill the fuel tank at the
earliest.
Indicator lights1. Turn indicator light " "
2. Neutral indicator light "N"
3. High beam indicator light " "The indicator flashes when the
turn switch is moved to the left or
right. .
This indicator comes on when the
transmission is in neutral.
This indicator comes on when the
headlight high beam is used.
1
2
3

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.
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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.

A. CLEANINGFrequent, thorough cleaning of your
Motorcycle will not only enhance its
appearance but will improve its
general performance and extend
the useful life of many components.1. Before cleaning the Motorcycle:
a. Block off the end of the exhaust
pipe to prevent water entry; a
plastic bag and strong rubber
band may be used.
b. Make sure the spark plug and all
filler caps are properly installed.
2. If the engine case is excessively
greasy, apply degreaser with a
paint brush. Do not apply
degreaser to the chain, sprockets,
or wheel axles.
3. Rinse the dirt and degreaser off
with a garden hose. Use only
enough pressure to do the job.Direct excessive Hose Pressure
may cause water Entry Into Wheel
Bearing, Front Fork Brakes,
Transmission Seals & Electrical
Parts, there-by leading to its
Detorioration.
7-1
Improper cleaning can damage
the cowlings, panels and other
plastic parts. Use only a soft,
clean cloth or sponge with mild
detergent and water to clean
plastic.
Do not use any harsh chemical
products on plastic parts.
Alaways use clean cloth or
sponge for cleaning the
Motorcycle.
CAUTION :4. After riding on dirty roads, wash
the Motorcycle with cold water
immediately. Do not use warm
water to clean the tyre.
5. Once the majority of the dirt has
been hosed off, wash all surfaces
with warm water and mild,
detergent-type soap. An old
toothbrush or bottle brush is
handy for hard-to-get-at places.
6. Rinse the Motorcycle off
immediately with clean water and
dry all surfaces with a chamois,
clean towel, or soft absorbent
cloth.
7. Dry the chain and lubricate it to
prevent rust.
CAUTION :CLEANING AND STORAGE

8-2
Spark plug :
Clutch type :
Transmission :
Chassis: Type/Manufacturer P-RA7HC--(CHAMPION)
Spark plug gap 0.8 ± 0.1 mm
Primary reduction system Spur gear
Primary reduction ratio 3.722 (67/18)
Secondary reduction system Chain drive
Secondary reduction ratio 3.214 (45/14)
Transmission type Constant mesh 4 speed
Operation
Gear ratio 1st 3
2nd 1.688 (27/16)
3rd 1.200 (24/20)
4th 0.875 (21/24)
Frame type Double Cradle
Caster angle
Trail 91mmWet, multiple-disc
Left foot operation
.000 (33/11)
26.4
o
Tyre with Tube
Size
Front
Rear 3.00
Air pressure (cold tyre ):
Single Rider
Front
Rear 33
With Pillion and rider
Front
Rear2.75 x18” 4PR
X18” 6PR
25 psi (1.75 Kgf/cm )
psi (2.25Kgf/cm )
25 psi (1.75Kgf/cm )
36 psi (2.5 Kgf/cm )
2
2
2
2
SPECIFICATIONS

DO’S AND DON’TS FOR THE MOTORCYCLE
8 If misfiring, get your Motorcycle diagnosed & attended immediately without running even for a KM.
9Get Motorcycle maintained regularly as per details and schedule given in Owner’s Manual.
10 Get emission of your Motorcycle inspected at least once every 3 months.
11 Please follow good driven habits in varying traffic conditions.
12 Switch “OFF” the engine while waiting at signal point.
DON’TS ()
1. Don’t overload/overspeed your Motorcycle.
2. Don’t after or modify you Motorcycle.
3. Never drive with Ignition “OFF” while moving down a slope.
4. Don’t turn off the Engine or interrupt the Ignition when the Transmission is in Gear & the Motor
cycle is in motion.
5. Don’t idle the Engine for a prolonged period.
6. Don’t use Non-Genuine Parts.
7. Don’t buy adulterated Petrol/Oil.
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