2003 YAMAHA YBR125 lock

CONTENTS
DESCRIPTION............................................................. 1-1
MACHINE IDENTIFICATION ....................................... 2-1
Vehicle identification number ................................. 2-1
Engine serial number ............................................ 2-1
CONTROL FUNCTIONS .............................................. 3-1
Main switch ............................................................ 3-1
Indicator lights ........................................................ 3-2
Speedometer .......................................................... 3-3
Fuel gauge ............................................................. 3-3
Handlebar switches over left .................................. 3-4
Handlebar switches over right .............................. 3-5
Clutch lever .......................... .................................. 3-6
Shift pedal ............................................................. 3-6
Front brake lever ................................................... 3-7
Rear brake pedal ................................................... 3-7
Fuel tank cap ......................................................... 3-8
Fuel cock ............................................................... 3-9
Starter lever ......................................................... 3-10
Steering lock ....................... ................................ 3-11
Seat ...................................................................... 3-12
Side covers ......................................................... 3-13
Rear shock absorber adjustment........................ 3-14
Clutch switch operation check ............................ 3-15
XIPRE-OPERATION
CHECKS........................................ 4-1
Brakes ................................................................... 4-3
Brake fluid leakage ................................................ 4-4
Engine oil ................................................................ 4-4
Tires ........................................................................\
4-5
Clutch ..................................................................... 4-8
Throttle grip ............................ ................................ 4-8
Fitting/Fasteners .................................................... 4-8
Switches ................................................................ 4-8
Wheels ......................................................... 4-8
Fuel ........................................................... 4-9
OPERATION AND IMPORT ANT RIDING POINTS....... 5-1
Starting a cold engine .................................................. 5-2
Starting a warm engine ................................................ 5-4
Warming up the engine ................................................ 5-4
Shifting ........................................................................\
.. 5-5
Engine Break-in ............................................................ 5-6
Parking ........................................................................\
.. 5-7
CONTENTS
DESCRIPTION ............................................................. 1-1
MACHINE IDENTIFICATION ....................................... 2-1
Vehicle identification number ................................. 2-1
Engine serial number ............................................ 2-1
CONTROL FUNCTIONS .............................................. 3-1
Main switch ............................................................ 3-1
Indicator lights ........................................................ 3-2
Speedometer .......................................................... 3-3
Fuel gauge ............................................................. 3-3
Handlebar switches over left .................................. 3-4
Handlebar switches over right .............................. 3-5
Clutch lever .......................... .................................. 3-6
Shift pedal ............................................................. 3-6
Front brake lever ................................................... 3-7
Rear brake pedal ................................................... 3-7
Fuel tank cap ......................................................... 3-8
Fuel cock ............................................................... 3-9
Starter lever ......................................................... 3-10
Steering lock ....................... ................................ 3-11
Seat ...................................................................... 3-12
Side covers ......................................................... 3-13
Rear shock absorber adjustment........................ 3-14
Clutch switch operation check ............................ 3-15
XIPRE-OPERATION
CHECKS........................................ 4-1
Brakes ................................................................... 4-3
Brake fluid leakage ................................................ 4-4
Engine oil ................................................................ 4-4
Tires ........................................................................\
4-5
Clutch ..................................................................... 4-8
Throttle grip ............................ ................................ 4-8
Fitting/Fasteners .................................................... 4-8
Switches ................................................................ 4-8
Wheels ......................................................... 4-8
Fuel ........................................................... 4-9
OPERATION AND IMPORT ANT RIDING POINTS....... 5-1
Starting a cold engine .................................................. 5-2
Starting a warm engine ................................................ 5-4
Warming up the engine ................................................ 5-4
Shifting ........................................................................\
.. 5-5
Engine Break-in ............................................................ 5-6
Parking ........................................................................\
.. 5-7


CONTROL FUNCTIONS
Main switch
The main switch controls the ignition and the electrical
system. It’s operation is described below.
ON:
Electrical circuits are switched on. Engine can be started.
The key cannot be removed.
OFF:
All electrical circuits are switched off. The key can be
removed.
LOCK:
The steering is locked and all electrical circuits are switched
off. The key can be removed. Refer to page (3-11) “Steering
lock” for instructions.
NOTE:
Always turn the main switch to “OFF” or “LOCK” and remove
the key when the motorcycle is unattended.
LOCK


CONTROL FUNCTIONS
Main switch
The main switch controls the ignition and the electrical
system. It’s operation is described below.
ON:
Electrical circuits are switched on. Engine can be started.
The key cannot be removed.
OFF:
All electrical circuits are switched off. The key can be
removed.
LOCK :
The steering is locked and all electrical circuits are switched
off. The key can be removed. Refer to page (3-11) “Steering
lock” for instructions.
NOTE:
Always turn the main switch to “OFF” or “LOCK” and remove
the key when the motorcycle is unattended.
LOCK

Fuel tank cap

#TO OPEN:
Insert the key and turn it 1/4 turn clockwise. The lock will
be released and the cap can be opened.
TO CLOSE:
Push the tank cap into position with the key inserted. To
remove the key, turn it counterclockwise to the original
position.
Be sure the cap is properly installed and locked in place
before riding the motorcycle.
WARNING:
Fuel tank cap

#TO OPEN:
Insert the key and turn it 1/4 turn clockwise. The lock will
be released and the cap can be opened.
TO CLOSE:
Push the tank cap into position with the key inserted. To
remove the key, turn it counterclockwise to the original
position.
Be sure the cap is properly installed and locked in place
before riding the motorcycle.
WARNING:


1. Push 2. Release 3. Turn
LOCK
OFF (PUSH)
Steering lock
The steering is locked when the main switch is turned to
“LOCK”. To lock the steering, turn the handlebars all the
way to the left. With the key at “OFF” position, push it into
the main switch and release it, turn it counterclockwise to
“LOCK”, and remove the key. To release the lock, turn the
key to “OFF”.
Never turn the key to “LOCK” position when the
motorcycle is moving.
WARNING:


1. Push 2. Release 3. Turn
LOCK
OFF (PUSH)
Steering lock
The steering is locked when the main switch is turned to
“LOCK”. To lock the steering, turn the handlebars all the
way to the left. With the key at “OFF” position, push it into
the main switch and release it, turn it counterclockwise to
“LOCK”, and remove the key. To release the lock, turn the
key to “OFF”.
Never turn the key to “LOCK” position when the
motorcycle is moving.
WARNING:

Insert the key and turn it 1/4 clockwise. Pull the cover
towards yourself
to release the fitting pin, and then, pull it
forward .
To reinstall, reverse the removal procedures.


Remove the key nad then pull the cover towards yourself


to release the fitting pin, and then, pull it forward .
To reinstall, reverse the removal procedures.
Side covers
1. Pull 2. Pull forward 1. Pull 2. Pull forward
Insert the key and turn it 1/4 clockwise. Pull the cover
towards yourself

to release the fitting pin, and then, pull it
forward .
To reinstall, reverse the removal procedures.


Remove the key nad then pull the cover towards yourself


to release the fitting pin, and then, pull it forward .
To reinstall, reverse the removal procedures.
Side covers
1. Pull 2. Pull forward 1. Pull 2. Pull forward

5. Remove the air filter elements from the guide and clean
them with solvent. After cleaning, remove the remaining
solvent by squeezing the air filter.
6. Apply recommended oil to the entire surface of the filter
and squeeze out the excess oil. The air filter should be
wet but not dripping.
Recommended oil:
Engine oil 20W50
7. Reinstall the air filter and lock it with the clamp.
8. Install the air filter case cover and the right side cover.
Make sure the element is properly seated in the air filter
case.
The engine should never be run without the air filter
element installed; excessive piston and/or cylinder wear
may result.
!
CAUTION:
CAUTION:
5. Remove the air filter elements from the guide and clean
them with solvent. After cleaning, remove the remaining
solvent by squeezing the air filter.
6. Apply recommended oil to the entire surface of the filter
and squeeze out the excess oil. The air filter should be
wet but not dripping.
Recommended oil:
Engine oil 20W50
7. Reinstall the air filter and lock it with the clamp.
8. Install the air filter case cover and the right side cover.
Make sure the element is properly seated in the air filter
case.
The engine should never be run without the air filter
element installed; excessive piston and/or cylinder wear
may result.
!
CAUTION:
CAUTION:

NOTE:
Before checking the throttle cable free play, the engine
idling speed should be adjusted.
The throttle cable should have an specified free play in the
turning direction at the grip flange. If the free play is incorrect,
follow the instructions below.
1. Loosen the locknut.
2. Turning the adjuster to:
Direction A : increase free play
Direction B: reduces free play
3. Tighten the locknut.
!
Free play: 3 ~ 7 mm (0.12 ~ 0.28 in)
Throttle cable adjustment
1. Free play
2. Locknut
3. Adjuster
NOTE:
Before checking the throttle cable free play, the engine
idling speed should be adjusted.
The throttle cable should have an specified free play in the
turning direction at the grip flange. If the free play is incorrect,
follow the instructions below.
1. Loosen the locknut.
2. Turning the adjuster to:
Direction A : increase free play
Direction B: reduces free play
3. Tighten the locknut.
!
Free play: 3 ~ 7 mm (0.12 ~ 0.28 in)
Throttle cable adjustment
1. Free play
2. Locknut
3. Adjuster

!$
Inspecting the brake fluid level
Insufficient brake fluid may let air enter the brake system,
possibly causing the brakes to become ineffective. Before
riding, check that the brake fluid is above the lower level
and replenish when necessary. Observe these precautions:
1. When checking the fluid level, make sure the top of the
master cylinder is level by turning the handlebars.
2. Use only the designated quality brake fluid. Otherwise,
the rubber seals may deteriorate, causing leakage and
poor brake performance.
Recommended brake fluid:
DOT #4
NOTE:
If DOT #4 is not available, #3 can be used.
1. Lower level
3. Refill with the same type of brake fluid. Mixing fluids
may result in a harmful reaction and lead to poor brake
performance.
4. Be careful that water does not enter the master cylinder
when refilling. Water will significantly lower the boiling
point of the fluid and may result in vapor lock.
5. Brake fluid may deteriorate painted surfaces or plastic
parts. Always clean up spilled fluid immediately.
6. Have a Yamaha dealer check the cause if the brake
fluid level goes down.
!$
Inspecting the brake fluid level
Insufficient brake fluid may let air enter the brake system,
possibly causing the brakes to become ineffective. Before
riding, check that the brake fluid is above the lower level
and replenish when necessary. Observe these precautions:
1. When checking the fluid level, make sure the top of the
master cylinder is level by turning the handlebars.
2. Use only the designated quality brake fluid. Otherwise,
the rubber seals may deteriorate, causing leakage and
poor brake performance.
Recommended brake fluid:
DOT #4
NOTE:
If DOT #4 is not available, #3 can be used.
1. Lower level
3. Refill with the same type of brake fluid. Mixing fluids
may result in a harmful reaction and lead to poor brake
performance.
4. Be careful that water does not enter the master cylinder
when refilling. Water will significantly lower the boiling
point of the fluid and may result in vapor lock.
5. Brake fluid may deteriorate painted surfaces or plastic
parts. Always clean up spilled fluid immediately.
6. Have a Yamaha dealer check the cause if the brake
fluid level goes down.