2007 YAMAHA YBR125 torque

WARNINGPERIODIC MAINTENANCE AND MINOR REPAIR
Periodic inspection, adjustment and
lubrication will keep your Motorcycle
in the safest and most efficient
condition possible. Safety is an
obligation of the Motorcycle owner.
The maintenance and lubrication
schedule chart should be considered
strictly as a guide to general
maintenance and lubrication
intervals. YOU MUST TAKE INTO
CONSIDERATION THAT
WEATHER, TERRAIN,
GEOGRAPHICAL LOCATIONS,
AND A VARIETY OF INDIVIDUAL
USES ALL TEND TO DEMAND
THAT EACH OWNER ALTER THIS
TIME SCHEDULE TO SHORTER
INTERVALS TO MATCH THE
ENVIRONMENT. The most impor-
tant points of Motorcycle inspection,
adjustment, and lubrication are
explained in the following pages.If you are not familiar with
Motorcycle service, this work
should be done by a YAMAHA
dealer.
1. Tool kitTool kitThe service information included in
this manual is intended to provide
you, the owner, with the necessary
information for completing some of
your own preventive maintenance
and minor repairs. The tools
provided in the owner's tool kit are to
assist you in the performance of
periodic maintenance. However,
some other tools such as a torque
wrench are also necessary to
perform the maintenance correctly.
6-1
1
1

PERIODIC MAINTENANCE AND MINOR REPAIR
6-3
PREVENTIVE MAINTENANCE SCHEDULE
VA LV E S
SPARK PLUG
CARBURETOR
AIR FILTER
FUEL LINE
FUEL FILTER
ENGINE OIL
ENGINE OIL
FILTER SCREEN
BRAKE-FRONT &
REAR
Check valve clearances, adjust if necessary.
Check condition, gap;
Clean and reset if necessary.
Check idle speed, Choke lever operation.
Clean, inspect & lubricate. (replace if necessary)
Check fuel hose, for cracks or damage.
Replace if necessary.
Check for free flow of petrol, cleanliness of filter bowl,
replace if necessary.
Replace with recommended oil - Yamalube SG Grade
(Warm engine before draining)
Wash with petrol
Check operation./ Adjust if necessary.
Grease the brake cam.
ITEM OPERATION SNO
1
2
3
5 4
6
7
8
9
*
WHEELS 13FRONT & REAR
REAR ARM PIVOT CLUTCH
12 11BRAKE SHOES-
10
Check runout, spoke tightness, damage;
Correct it, if necessary. Check for wear, replace if necessary.
Check alignment marks on Push Lever and
Tighten with specified Torque if necessary Check Rear Arm assembly for looseness. Crankcase L.H. Adjust if necessary.
30 Days OR
500-700 KmAFTER EVERY DAYS OR KMS
REPLACE EVERY 10,000 km90 Days OR
2500-2700 Km180 Days OR
4500-5000 KmAFTER
EVERY
2000 KMS

A. Spark plug gapSpark plug inspectionThe spark plug is an important engine
component and is easy to inspect.
The condition of the spark plug can
indicate the condition of the engine.
The ideal color on the white insulator
around the center electrode is a
medium-to-light tan color for a
Motorcycle that is being riddennormally. Do not attempt to diagnose
any problems yourself. Instead, take
the Motorcycle to a YAMAHA dealer.
You should periodically remove and
inspect the spark plug because heat
and deposits will cause the spark plug
to slowly break down and erode. If
electrode erosion becomes exces-
sive, or if carbon and other deposits
are excessive, you should replace the
spark plug with the specified plug.
Before installing the spark plug,
measure the electrode gap with a wire
thickness gauge; adjust the gap to
specification as necessary.
PERIODIC MAINTENANCE AND MINOR REPAIR
6-7
A.- Spark plug gap: 0.8 ±0.1 mm
When installing the plug, always
clean the gasket surface and use a
new gasket. Wipe off any grime from
the threads and tighten the spark plug
to the specified torque.
Tightening torque:
Spark plug:
12 ft-lb (1.75 m-kg)NOTE :If a torque wrench is not available
when you are installing a spark plug,
a good estimate of the correct
torque is 1/4 to 1/2 turn past finger
using a box spanner.
AALWAYS USE ONLY THE STANDARD RECOMMENDED MAKE AND TYPE OF
SPARK PLUG
Specified spark plug:
P-RA7HC-(CHAMPION)

ALWAYS USE ONLY THE RECOMMENDED GRADE OF ENGINE OIL
1 . Engine oil drain plugc. Remove the drain plug and drain
the oil.
d. Reinstall the drain plug and
tighten it to the specified
torque.Tightening torque:
Drain plug:
14.5 It-lb (2.0 m-kg)
e. Fill engine with oil and install
the dipstick.
Recommended oil:
YAMALUBE 4-stroke motor oil
(20W40 type SG).
Oil quantity:
Total amount:
1.2 L
Periodic oil change:
1.0 L
PERIODIC MAINTENANCE AND MINOR REPAIR
6-9
f. Start the engine and warm up
for a few minutes. While
warming up, check for oil leak-
age. If oil leakage is found, stop
the engine immediately and
check for the cause.

CAUTION :
5. After adjusting, be sure to tighten
each chain adjusting locknut.
Then tighten the axle nut to the
specified torque.Maintain chain slackness
within specified limits as per
specifications.
To maintain correct axle
alignment, Ensure the notch
on the adjuster is on the same
Mark on Left and Right Side.
Tightening torque:
Axle nut:
65 ft-lb (9.05 m-kg)
1. Cotter pin6. Insert a new cotter pin into the
axle nut and bend the end of the
cotter pin as shown. If the notch in
the axle nut and the cotter pin
hole do not match, tighten the nut
slightly to align them.
Always use a new cotter pin on
the axle nut.7 Adjust the free play in the
brake pedal.
Check the operation of the brake
light after adjusting the rear
brake.
PERIODIC MAINTENANCE AND MINOR REPAIR
6-20
WARNING
WARNING

1. StopperFront wheel installationWhen installing the front wheel,
reverse the removal procedure.
Pay attention to the following points:
1. Make sure the slot in the brake
shoe plate fits over the stopper on
the front fork outer tube.
2. Make sure the axle nut is properly
torqued and a new cotter pin is
installed.Always use a new cotter pin.
Axle nut torque:
33 ft-lb (4.55 m-kg)
3. Adjust the free play in the brake
lever.PERIODIC MAINTENANCE AND MINOR REPAIR
6-30
WARNING
Rear wheel removalIt is advisable to service the
wheel by a YAMAHA dealer.
Securely support the
Motorcycle so there is no
danger of it falling over.
WARNING

Rear wheel installation1. Install the rear wheel and the
axle.
2. Install the axle nut.
3. Insert the brake rod into the
brake cam lever and install the
brake free play adjusting nut.
4. Install the tension bar onto the
brake shoe plate and tighten the
tension bar nut to the specified
tightening torque.
5. Take the Motorcycle off the
centerstand.
6. Tighten the axle nut to the
specified tightening torque.
Then install a new cotter pin.
Specified torque:
Tension bar nut:
14 ft-lb (1.9 m kg)
Axle nut:
65 ft-lb (9.05 m kg)Always use a new cotter pin.
Check the operation of the brake
light after adjusting the rear brake. 7. Adjust the rear brake pedal free
play. (See page 6-17.)
TroubleshootingAlthough YAMAHA Motorcycles
receive a rigid inspection before
shipment from the factory, trouble
may occur during operation. Any
problem in the fuel, compression, or
ignition systems can cause poor
starting and loss of power. The
troubleshooting chart describes a
quick, easy procedure for making
checks. If your Motorcycle requires
any repair, bring it to a YAMAHA
dealer. The skilled technicians at a
YAMAHA dealership have the tools,
experience, and know-how to
properly service your Motorcycle.
Use only genuine YAMAHA parts
on your Motorcycle. Imitation
parts may look like YAMAHA
parts, but they are often inferior.
Consequently, they have a shorter
service life and can lead to
expensive repair bills.
PERIODIC MAINTENANCE AND MINOR REPAIR
6-32
WARNINGWARNING

SPECIFICATIONS
8-1
SpecificationsModel LIBERO (5TS8)
Dimensions
Kerb weight :(With Engine Oil &
90% Fuel in Tank)- 119Kg.
Engine ::
Overall length 2,000 mm
Overall width 730 mm
Overall height 1,050 mm
Seat height (Upto Rider) 800 mm
(Upto Pillion Rider) 850 mm
Wheelbase 1,290 mm
Ground clearance 173 mm
Minimum turning radius 2,000 mm
Engine type
Cylinder arrangement
Displacement
Bore x Stroke 49X56
Compression ratio 9 : 1
Starting system
Lubrication system
Maximum power 7.6
Maximum torque 0.80Air cooled 4-stroke,SOHC
Forward inclined single
cylinder
106 cm
mm
Kick starter
Wet sump
PS(5.59 KW) @ 7500
Kgm. @ 6000
3
RPM
RPM
EngineOil:
Capacity
Air filter:
Fuel :
Carburettor:Type:
:
Periodic oil change 1.0
Total amount
Type G
Fuel tank capacity
Reserve amount
Type Variable Venturi Type
Manufacturer M/S Keihin Fie PrivateBe sure to use motor oils that do not contain
antifriction modifiers. Passenger car motor oils (often
labelled Energy conserving) contain anti-friction
additives which will cause clutch and/or starter clutch
slippage, resulting in reduced component life and
poor engine performance.
YAMALUBE 4-Stroke motor
oil (20W40 type SG)
L
1.2 L (First fill/Overhaul)
Wet type element
asoline (Petrol)
13.0 Litres
1.7Litres
Limited India.
CAUTION :