2007 YAMAHA YBR125 engine

Ask YAMAHA dealer to inspect.compression check. Engine doesn't start, go to
Dry with
Black SootWet No compression.
There is compression
electrode. plug and check Remove spark Use kick starter.
Wipe clean with dry cloth
and correct spark plugGo to Ignition check. Enough fuel
No fuelGO TO compression check
in the fuel tank Check if there is fuel
Supply fuel.
Open the throttle half-way
and start the engine.
or replace spark plug.
WARNING
Never Check the fuel system while smoking or in the vicinity of an open flame.
PERIODIC MAINTENANCE AND MINOR REPAIR
6-33Ask YAMAHA
dealer to inspect.
Troubleshooting chart - For Starting
1. Fuel
2. Compression
3. Ignition
If Engine does not start
Contact YAMAHA dealer.

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. Clean the seat with a vinyl
upholstery cleaner to keep the
cover pliable and glossy.
9. Automotive-type wax may be
applied to all painted and chrome-
plated surfaces. Avoid
combination cleaner waxes. Many
contain abrasive which may mar
the paint or protective finish. When
finished, start the engine and let it
idle for several minutes.
B. STORAGELong term storage (60 days or more)
of your Motorcycle will require some
preventive procedures to guard
against deterioration. After thor-
oughly cleaning the Motorcycle,
prepare for storage as follows:
1. Drain the fuel tank, fuel lines, and
carburetor float bowl.
2. Remove the empty fuel tank, pour
a cup of SAE 10W30 or 20W40
motor oil in the tank, shake the
tank to coat the inner surfaces
thoroughly and drain off the
excess oil. Reinstall the tank.
3. Remove the spark plug, pour
about one tablespoon of SAE
10W30 or 20W40 motor oil in the
spark plug hole and reinstall the
spark plug. Kick the engine over
several times (with the ignition off)
to coat the cylinder wall with oil.
4. Remove the drive chain.
Thoroughly clean the chain withsolvent and lubricate it. Reinstall
the chain or store it in a plastic bag
(tied to frame for safe-keeping).
5. Lubricate all control cables.
6. Block up the frame to raise both
wheels off the ground.
7. Tie a plastic bag over the
exhaust pipe outlet to prevent
moisture from entering.
8. If storing in a humid or salt-air
atmosphere, coat all exposed
metal surfaces with a light film of
oil. Do not apply oil to any rubber
parts or the seat cover.
9. Remove the battery and charge it.
Store it in a dry place and
recharge it once a month. Do not
store the battery in an excessively
warm or cold place (less than 0ºC
or more than Ambient).
Make any necessary repairs before
storing the Motorcycle.
CLEANING AND STORAGE
7-2
NOTE :

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 :

1. Key identification numberKey identification numberThe key identification number is
stamped on the key.
Record this number in the space
provided and use it for reference
when obtaining a new key.
1. Frame serial numberThe frame serial number is stamped
into the steering head pipe on right
hand side.Frame serial number
1. Engine serial numberThe engine serial number is
stamped into the right hand
crankcase.Engine serial number
CUSTOMER INFORMATION
9-1

10-1
1. Check for any missing item(s), scratches in painted/plated part(s), saddle or other external
visual damages and take corrective action.
Check each of the following items individually and mention the corrective action (as per the
recommended specifications) in the boxes provided.2. Check for missing part(s), if any.A. FRAME
a. Brakes
Front : Free Play at Lever End (10 ~ 15 mm)
Rear :Free Play at Rear Brake (20 ~ 30 mm)
b. Clutch :Free Play at Lever End (10 ~ 15 mm)c. Throttle :Free Play at Throttle Grip (3 ~7 mm)d. Steering :Check for Free Movemente. Suspension
Front Fork : Check for any sticky movement
Rear Shock Abs : For Free Stroking & Setting on both
(To be filled in by the Dealer on receipt of the Motorcycle from YMIS)
Odo-Meter
ReadingDate of
Inspection
Frame
No.Engine
No.Date of
SaleFound OK
Set RightReplaced
Cleaned
Lubricated
RCL
S
PRE-DELIVERY INSPECTION REPORT
No.
service2.pmd11/3/2006, 8:50 PM 1

PRE-DELIVERY INSPECTION REPORT
f. Wheels
Tyre :Tyre pressure Solo Double
(PSI)
Front 25 25
Rear 33 36
R i m : Runout - Radial - 1.5 mm (Max)
- Lateral - 1.5 mm (Max)
Spokes : No loosenes
g. Locks Operation : • Ignition
• Steering• Fuel Tank Cap• Side Cover (L.H.)
h. FastenersSpecified Torque
(Ft-Lb)
1. Front Wheel Axle Nuts 25-40
2. Front Fork (Crown Handle & Inner Tube)13-202. Front Fork under Bracket Stem Nut18-223. Handle Bar Mounting Bolts 13-204. Rear Shock Absorber Mounting Bolts22-355. Rear Swing Arm Pivot Shaft Nut32-526. Rear Wheel Axle/Sprocket. Shaft Nuts60-70
B. ENGINE
a. Engine Oil : • Oil Level (For checking - Refer Pg. 6-9)
• Check for any Leakages
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b. Spark Plug :Recommended No. P-RA7HC(Champion)
Gap 0.8 ±0.1 mm
c. Valve Clearance :(Cold condition)
(If required) Inlet0.08 ~ 0.12 mm
Exhaust0.10 ~ 0.14 mm
(After matching of the mark on sprocket cam chain with mark on Cylinder
Head Casting and ensuring the Piston at TDC of compression stroke.)
d. Kick Operation: For free Movement
e. Carburetor : • Idle RPM
In warmed up condition
(1300~1500 RPM)
• Check for Overflow
f. Drive Chain : • Alignment
• Slackness(20 ~ 30 mm)
g. FastenersSpecified Torque
(Ft-Lb)
1. Cylinder Head Bolts14-17
2. Engine Mounting
a) Engine Mounting Front and Stay Front25-29
b) Stay Engine Front and Frame25-29c) Engine Mounting Rear and Frame25-29d) Engine Mounting Upper &
Stay Engine Upper25-29e) Stay Engine Upper and Frame25-29f) Engine Mounting Front Lower and Frame25-29
3. Front and Rear Silencer Mounting Nut9-124. Crown Handle Centre Bolt8-14
PRE-DELIVERY INSPECTION REPORT
10-3
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