2007 YAMAHA YBR125 maintenance

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

1. Nut
2. Cotter pin
3. Tension bar1. Place the Motorcycle on the
centerstand.
2. Remove the cotter pin and nut.
Then remove the tension bar
from the brake shoe plate.
1. Axle nut
2. Cotter pin
3. Brake rod
4. Brake adjusting nut3. Remove the brake adjusting nut
and brake rod from the brake cam
lever.
4. Remove the axle nut cotter pin
and the axle nut.
1. Rear axle5. Pull out the rear axle.
6. Remove the wheel assembly.
PERIODIC MAINTENANCE AND MINOR REPAIR
6-31
ALWAYS USE YAMAHA GENUINE SPARE PARTS

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

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.

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
service2.pmd11/3/2006, 8:50 PM 6

YAMAHA MOTOR INDIA SALES PRIVATE LIMITED
A-3, SURJPUR INDUSTRIAL AREA, NOIDA DADRI ROAD
SURAJPUR - 201 306 (UP) INDIA
PRINTED IN INDIA2Y14(OM-01)284-11-06-E
Longer Engine Life
Lower Maintenance Cost
Lower Exhaust Smoke
Reduces Wear and Tear
SG4 STROKE MOTOR OIL20W40
4
Parts & AccessoriesAlways use
OWNER'S MANUAL
1B56
1B5-F8199-E0