warning YAMAHA YBR125 2003 Owners Manual

V
Particularly important information is distinguished in this manual by the following notations:
NOTE:A NOTE provides key information to make procedures easier or clearer.
A CAUTION indicates special precautions that must be taken to avoid damage to
the machine.
Failure to follow WARNING instructions could result in severe injury or death to
the machine operator, a bystander or a person inspecting or repairing the machine.
CAUTION:
WARNING:
NOTE:
This manual should be considered a permanent part of this machine and should remain with it even if
the machine is subsequently sold.
Yamaha continually seeks advancements in product design and quality. Therefore, while this manual
contains the most current product information available at the time of printing. There may be minor
discrepancies between your machine and this manual.
If there is any question concerning this manual, please consult your Yamaha dealer.
V
Particularly important information is distinguished in this manual by the following notations:
NOTE:A NOTE provides key information to make procedures easier or clearer.
A CAUTION indicates special precautions that must be taken to avoid damage to
the machine.
Failure to follow WARNING instructions could result in severe injury or death to
the machine operator, a bystander or a person inspecting or repairing the machine.
CAUTION:
WARNING:
NOTE:
This manual should be considered a permanent part of this machine and should remain with it even if
the machine is subsequently sold.
Yamaha continually seeks advancements in product design and quality. Therefore, while this manual
contains the most current product information available at the time of printing. There may be minor
discrepancies between your machine and this manual.
If there is any question concerning this manual, please consult your Yamaha dealer.

VI
PLEASE READ THIS MANUAL CAREFULLY AND COMPLETELY BEFORE OPERATING THIS MACHINE. DO NOT
ATTEMPT TO OPERATE THIS MOTORCYCLE UNTIL YOU HAVE ATTAINED A SATISFACTORY KNOWLEDGE OF
ITS CONTROLS AND OPERATING FEATURES AND UNTIL YOU HAVE BEEN TRAINED IN SAFE AND PROPER
RIDING TECHNIQUES. REGULAR INSPECTIONS AND CAREFUL MAINTENANCE, ALONG WITH GOOD RIDING
SKILLS WILL ENSURE THAT YOU SAFELY ENJOY THE CAPABILITIES AND THE RELIABILITY OF THIS
MOTORCYCLE.
WARNING:
VI
PLEASE READ THIS MANUAL CAREFULLY AND COMPLETELY BEFORE OPERATING THIS MACHINE. DO NOT
ATTEMPT TO OPERATE THIS MOTORCYCLE UNTIL YOU HAVE ATTAINED A SATISFACTORY KNOWLEDGE OF
ITS CONTROLS AND OPERATING FEATURES AND UNTIL YOU HAVE BEEN TRAINED IN SAFE AND PROPER
RIDING TECHNIQUES. REGULAR INSPECTIONS AND CAREFUL MAINTENANCE, ALONG WITH GOOD RIDING
SKILLS WILL ENSURE THAT YOU SAFELY ENJOY THE CAPABILITIES AND THE RELIABILITY OF THIS
MOTORCYCLE.
WARNING:

VII
TWO-WHEELED MACHINES ARE SINGLE TRACK VEHICLES. THEIR SAFE USE AND OPERATION ARE DEPENDENT
UPON THE USE OF PROPER RIDING TECHNIQUES AS WELL AS THE EXPERTISE OF THE OPERATOR.
EVERY OPERATOR SHOULD KNOW THE FOLLOWING REQUIREMENTS BEFORE RIDING. HE OR SHE SHOULD.
1. OBTAIN THOROUGH INSTRUCTIONS FORM A COMPETENT SOURCE ON ALL ASPECTS OF MACHINE
OPERATION.
2. OBSERVE THE WARNINGS AND MAINTENANCE REQUIREMENTS IN THE OWNER’S MANUAL.
3. OBTAIN QUALIFIED TRAINING IN SAFE AND PROPER RIDING TECHNIQUES.
4. OBTAIN PROFESSIONAL TECHNICAL SERVICE AS INDICATED BY THE OWNER’S MANUAL AND/OR WHEN
MADE NECESSARY BY MECHANICAL CONDITIONS.
SAFE RIDING
1. Always make pre-operation checks. Careful checks may help prevent an accident.
2. Many accidents involve inexperienced operators.
a. Know your skills and limits. Staying within your limits may help you to avoid an accident.
b. Only lend your machine to experienced operators.
3. Many machine accidents have been caused by machine operator errors. A typical error made by the operator is veering
wide on a turn due to EXCESSIVE SPEED or undercornering (insufficient lean angle for the speed). Never travel faster
than warranted by conditions.
4. Ride cautiously in unfamiliar areas. You may encounter hidden obstacles which could cause an accident.
5. The operator’s posture is important for proper control. The operator should keep both hands on the handlebars and
both feet on the operator footrests during operation to maintain control of the machine.
6. Never ride under the influence of alcohol or drugs.
SAFETY INFORMATION
VII
TWO-WHEELED MACHINES ARE SINGLE TRACK VEHICLES. THEIR SAFE USE AND OPERATION ARE DEPENDENT
UPON THE USE OF PROPER RIDING TECHNIQUES AS WELL AS THE EXPERTISE OF THE OPERATOR.
EVERY OPERATOR SHOULD KNOW THE FOLLOWING REQUIREMENTS BEFORE RIDING. HE OR SHE SHOULD.
1. OBTAIN THOROUGH INSTRUCTIONS FORM A COMPETENT SOURCE ON ALL ASPECTS OF MACHINE
OPERATION.
2. OBSERVE THE WARNINGS AND MAINTENANCE REQUIREMENTS IN THE OWNER’S MANUAL.
3. OBTAIN QUALIFIED TRAINING IN SAFE AND PROPER RIDING TECHNIQUES.
4. OBTAIN PROFESSIONAL TECHNICAL SERVICE AS INDICATED BY THE OWNER’S MANUAL AND/OR WHEN
MADE NECESSARY BY MECHANICAL CONDITIONS.
SAFE RIDING
1. Always make pre-operation checks. Careful checks may help prevent an accident.
2. Many accidents involve inexperienced operators.
a. Know your skills and limits. Staying within your limits may help you to avoid an accident.
b. Only lend your machine to experienced operators.
3. Many machine accidents have been caused by machine operator errors. A typical error made by the operator is veering
wide on a turn due to EXCESSIVE SPEED or undercornering (insufficient lean angle for the speed). Never travel faster
than warranted by conditions.
4. Ride cautiously in unfamiliar areas. You may encounter hidden obstacles which could cause an accident.
5. The operator’s posture is important for proper control. The operator should keep both hands on the handlebars and
both feet on the operator footrests during operation to maintain control of the machine.
6. Never ride under the influence of alcohol or drugs.
SAFETY INFORMATION

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:

 If improper operation is noted, consult a Yamaha dealer
or other qualified mechanic immediately.
↓
↓ ↓
↓
↓
↓
↓ ↓
↓
↓↓
↓ ↓
↓
↓
Clutch switch operation check
Check the operation of the clutch switch against the
information below.
↓
↓ ↓
↓
↓
TURN MAIN SWITCH TO “ON” AND
ENGINE STOP SWITCH TO “ ”.
TRANSMISSION IS IN GEAR.
PULL IN CLUTCH LEVER AND PUSH STARTER SWITCH.
ENGINE WILL START
CLUTCH SWITCH IS OK
WARNING:

 If improper operation is noted, consult a Yamaha dealer
or other qualified mechanic immediately.
↓
↓ ↓
↓
↓
↓
↓ ↓
↓
↓↓
↓ ↓
↓
↓
Clutch switch operation check
Check the operation of the clutch switch against the
information below.
↓
↓ ↓
↓
↓
TURN MAIN SWITCH TO “ON” AND
ENGINE STOP SWITCH TO “ ”.
TRANSMISSION IS IN GEAR.
PULL IN CLUTCH LEVER AND PUSH STARTER SWITCH.
ENGINE WILL START
CLUTCH SWITCH IS OK
WARNING:


NOTE:
Pre-operation checks should be made each time the motorcycle is used. Su\
ch an inspection can be thoroughly accomplished
in a very short time; and the added safety it assures is more than worth\
the time involved. If any maintenance service or
adjustment is needed, consult the chart above to refer to the pages in w\
hich the service or adjustment is described.
1. The engine, exhaust pipe, and muffler will be very hot after the engine \
has been run.
Be careful not to touch them or to allow any clothing item to contact th\
em during inspection or repair.
2. If any item is not working properly, have it inspected and repaired before operating the motorcycle.
ITEM ROUTINE
PAGE
Sidestand
Fittings / Fasteners Check all chassi fittings and fasteners.
Tighten / Adjust, if necessary
Check fuel level / top up as required.
Fuel tank
Lights, signals and switches
Battery Check electrolyte level.
Replenish with “distilled water” if necessary. 6-24
4-8 , 6-5
4-8 , 6-30 ~ 6-32 6-27 ~ 6-296-24
4-9 ~ 4-10
Check for proper operation
Front brake and clutch lever pivots Check for smooth operation.
Lubricate if necessary
Check for smooth operation.
Lubricate if necessary
6-24
Check for smooth operation.
Lubricate if necessary
Rear brake and shift pedal
shafts
WARNING:

NOTE:
Pre-operation checks should be made each time the motorcycle is used. Su\
ch an inspection can be thoroughly accomplished
in a very short time; and the added safety it assures is more than worth\
the time involved. If any maintenance service or
adjustment is needed, consult the chart above to refer to the pages in w\
hich the service or adjustment is described.
1. The engine, exhaust pipe, and muffler will be very hot after the engine \
has been run.
Be careful not to touch them or to allow any clothing item to contact th\
em during inspection or repair.
2. If any item is not working properly, have it inspected and repaired before operating the motorcycle.
ITEM ROUTINE
PAGE
Sidestand
Fittings / Fasteners Check all chassi fittings and fasteners.
Tighten / Adjust, if necessary
Check fuel level / top up as required.
Fuel tank
Lights, signals and switches
Battery Check electrolyte level.
Replenish with “distilled water” if necessary. 6-24
4-8 , 6-5
4-8 , 6-30 ~ 6-32 6-27 ~ 6-296-24
4-9 ~ 4-10
Check for proper operation
Front brake and clutch lever pivots Check for smooth operation.
Lubricate if necessary
Check for smooth operation.
Lubricate if necessary
6-24
Check for smooth operation.
Lubricate if necessary
Rear brake and shift pedal
shafts
WARNING:



Brakes
(See page 6-16 for details)
1. Brake lever and brake pedal
Check for correct free play in the front brake lever and
rear brake pedal and adjust if necessary. Make sure
the brakes are working properly by checking at low
speed shortly after starting out.
A soft, spongy feeling in the brake lever indicates a
failure in the brake system. Do not operate the
motorcycle until the failure in the brake system is
corrected. Ask a Yamaha dealer or other qualified
mechanic for immediate repairs. A soft, spongy feeling
could indicate a hazardous condition in the brake
system.2. Brake fluid
Check the brake fluid level. Add fluid if necessary.
RECOMMENDED BRAKE FLUID: DOT #4
NOTE:
If DOT #4 is not available, #3 can be used.
3. Check the disc pads.
Refer to page 6-18
4. Check the brake shoes.
Refer to page 6-18
NOTE:
When a brake service is necessary, consult a Yamaha
dealer or other qualified mechanic.
WARNING:


Brakes
(See page 6-16 for details)
1. Brake lever and brake pedal
Check for correct free play in the front brake lever and
rear brake pedal and adjust if necessary. Make sure
the brakes are working properly by checking at low
speed shortly after starting out.
A soft, spongy feeling in the brake lever indicates a
failure in the brake system. Do not operate the
motorcycle until the failure in the brake system is
corrected. Ask a Yamaha dealer or other qualified
mechanic for immediate repairs. A soft, spongy feeling
could indicate a hazardous condition in the brake
system.2. Brake fluid
Check the brake fluid level. Add fluid if necessary.
RECOMMENDED BRAKE FLUID: DOT #4
NOTE:
If DOT #4 is not available, #3 can be used.
3. Check the disc pads.
Refer to page 6-18
4. Check the brake shoes.
Refer to page 6-18
NOTE:
When a brake service is necessary, consult a Yamaha
dealer or other qualified mechanic.
WARNING:

4-4
Brake fluid leakage
Apply the brake for several seconds. Check to see if any
brake fluid leaks out from the pipe joints or the master
cylinder.
Brake fluid may deteriorate painted surfaces or plastic parts.
Never spill any fluid. If spilled, clean it up immediately.
If brake fluid leakage is found, ask a Yamaha dealer or
other qualified mechanic for immediate repairs. Such
leakage could indicate a hazardous condition.
OIL QUANTITY:
Total amount:
1.2 L ( 0.264 Imp gal, 0.317 US gal)
Periodic oil change:
1.0 L ( 0.220 Imp gal, 0.264 US gal)
Engine oil
(See page 6-6 for details)
Make sure the engine oil is at the specified level. Add oil as
necessary.
Check the oil level in a daily manner and top it up if
necessary.
CAUTION:
WARNING:
CAUTION:
4-4
Brake fluid leakage
Apply the brake for several seconds. Check to see if any
brake fluid leaks out from the pipe joints or the master
cylinder.
Brake fluid may deteriorate painted surfaces or plastic parts.
Never spill any fluid. If spilled, clean it up immediately.
If brake fluid leakage is found, ask a Yamaha dealer or
other qualified mechanic for immediate repairs. Such
leakage could indicate a hazardous condition.
OIL QUANTITY:
Total amount:
1.2 L ( 0.264 Imp gal, 0.317 US gal)
Periodic oil change:
1.0 L ( 0.220 Imp gal, 0.264 US gal)
Engine oil
(See page 6-6 for details)
Make sure the engine oil is at the specified level. Add oil as
necessary.
Check the oil level in a daily manner and top it up if
necessary.
WARNING:
CAUTION:
CAUTION:

4-5
Tires
To ensure maximum performance, long service, and safe
operation, note the following:
1. Tire air pressure
Always check and adjust the tire pressure before
operating the machine.
Tire inflation pressure should be checked and adjusted
when the temperature of the tire equals the ambient air
temperature.
Tire inflation pressure must be adjusted according to
total weight of cargo, rider, passenger and accessories
(fairing, saddlebags, etc. if approved for this model),
and vehicle speed.
WARNING:
Basic weight:
With oil and without fuel
Maximum load*:
Cold tire pressure:
up to 90 Kg (198 lb)
load*: 90 Kg (198 lb) ~
maximum load*: 119 Kg ( 262 lb)
160 Kg ( 353 lb)
Front Rear
* Load is the total weght of cargo, rider, passenger and accessories.
1.75 kg/cm2
25 PSI / 175 kpa 2.0 kg/cm
2
28 PSI / 200Kpa
1.75 kg/cm2
25 PSI / 175 Kpa 2.25 kg/cm
2
32 PSI / 225 Kpa
4-5
Tires
To ensure maximum performance, long service, and safe
operation, note the following:
1. Tire air pressure
Always check and adjust the tire pressure before
operating the machine.
Tire inflation pressure should be checked and adjusted
when the temperature of the tire equals the ambient air
temperature.
Tire inflation pressure must be adjusted according to
total weight of cargo, rider, passenger and accessories
(fairing, saddlebags, etc. if approved for this model),
and vehicle speed.
WARNING:
Basic weight:
With oil and without fuel
Maximum load*:
Cold tire pressure:
up to 90 Kg (198 lb)
load*: 90 Kg (198 lb) ~
maximum load*: 119 Kg ( 262 lb)
160 Kg ( 353 lb)
Front Rear
* Load is the total weght of cargo, rider, passenger and accessories.
1.75 kg/cm2
25 PSI / 175 kpa 2.0 kg/cm
2
28 PSI / 200Kpa
1.75 kg/cm2
25 PSI / 175 Kpa 2.25 kg/cm
2
32 PSI / 225 Kpa