service YAMAHA YBR125 2007 User Guide

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

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.
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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
10-2
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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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PRE-DELIVERY INSPECTION REPORT10-4
C. ELECTRICAL
a. Ignition Switch Operation
b. Left Hand Switch Operation & Pass Beam
• Horn
• Indicator• Head Light
c. All Bulbs - Functioningd. Battery
• Electrolyte Level
• Specific Gravity• Routing of Breather Pipe• Fuse• Routing of Positive Wire (Red) Below Breather Pipe
D. ROAD TEST
a. Starting
b. Gear Shifting Operationc. Clutch Operationd. Application of Brakes (Front and Rear)e. Speedo/ Odo Meter Operationf. Fuel gauge OperationEXPLAINED BYSIGNATURE: _____________ NAME:
CUSTOMER’S SIGN
MAIN SELLING DLR’S STAMP, SIGNATURE
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10-5
1. Operation of all the locks (Ignition, Steering, Fuel Tank Cap, Side Cover L.H.).
2. Fuel Cock Lever Operation and its reserve position; Fuel Tank Capacity including reserve & Fuel
Gauge.
3. Operation and function of Starter Lever.
4. Operation of Kick Lever.
5. Operation of Throttle.
6. Operation of Handle Bar Switches, their Functions and Pass Beam.
7. Disadvantages of riding on half Clutch (Never ride with clutch pressed).
8. Gear shifting pattern.
9. Tyre inflation pressure :Front - 25 Psi Rear - 33 Psi (Solo), 36 Psi (Double)
10. Never give sudden acceleration; always accelerate gradually
11. Simultaneous use of Front and Rear Brakes.
12. Never ride with your foot on Rear brake Pedal.
13. Whenever parking the Motorcycle on the Side Stand, ensure that the Fuel Cock Lever is in closed
position.
14. Always adjust both the right and left Shock Absorbers to the same position.INSTALLATIONProcedures to be explained to the customer on delivery of the Motorcycle by the Dealer's
Representative.
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15. Location of Storage and Tool Kit compartments and their use.
16. Procedure of opening and closing of L. H. Side Panel.
17. Battery Maintenance : Checking of electrolyte level (To add only distilled water if required &
to maintain its Specified Level)
18. Correct Drive Chain Slackness (20 ~30 mm).
19. Correct type of Spark Plug and Spark Plug gap.
20. Engine Oil (in Gear Box), level checking and explaining the importance of replacing the Engine
Oil after every 2000 KMS Always use YAMALUBE 4T OIL SG Grade.
21. TFF oil to be replaced after every 10000 Kms.
22. Running- In Period/ Preventive Maintenance Schedule Instructions
23. Information of emission and safety norms (AIS + CATCON).
24. Importance and schedule of Free Services
25. Warranty Terms and Conditions.
INSTALLATION
IMPORTANT CAUTION
10-6
EXPLAINED BYSIGNATURE: _____________ NAME:
CUSTOMER’S SIGN
MAIN SELLING DLR’S STAMP, SIGNATURE
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1. DO’S ()

1Always use genuine ‘spare parts’ purchased from YAMAHA Authorised Dealers.

2Always use only genuine oils
• 4T - 20W/40 SG grade - YAMALUBE 4T

3 Always keep your engine well turned. Save environment and also improve Fuel Efficiency

4 • ALWAYS GET YOUR MOTORCYCLE REPAIRED AND MAINTAINED ONLY AT YAMAHA AUTHORISED
DEALER.
• YAMAHA serves you through a wide network of Authorised Dealers.

5.Check the Following at every scheduled service:-
a) Spark Plug : Check/Reset Gap/Replace as per the recommendations
in this Owner’s Manual (page no 6-7)
b) Carburetor :Cleaning/Adjustment Every 4500 kmsc) Air Filter : Clean every 2000 kms as per the environment conditions.
d) Piston/Rings/Cylinder : Check / Clean / Replace if necessary
e) Exhaust System : Check / Replace if necessary
f) Valve Timing : Check / Adjust every 4500 kms
g) Compression pressure :Check / Diagnose.
6 Always drive with Starter Lever in OFF position.
7 Use Starter Lever for minimum possible period (1 to 2 minutes) only to start and warm up Engine
(may be required only in winter)
DO’S AND DON’TS FOR THE MOTORCYCLE
2
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