2003 YAMAHA YBR125 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

4-6
Proper loading of your motorcycle is important for the
handling, braking, and other performance and safety
characteristics of your motorcyle. Do not carry loosely
packed items that can shift. Securely pack your
heaviest items close to the center of the motorcycle,
and distribute the weight evenly from side to side.
Properly adjust the suspension for your load, and
check the condition and pressure of your tires. NEVER
OVERLOAD YOUR MOTORCYCLE. Make sure the total
weight of the cargo, rider, passenger, and accessories
(fairing, saddlebags, etc. if approved for this model)
does not exceed the maximum load of the motorcycle.
Operation of an overloaded motorcycle could cause
tire damage, an accident, or even injury.
2. Tire inspection
Always check the tires before operating the motorcycle.
If a tire tread shows crosswise lines (minimum tread
depth), if the tire has a nail or glass fragments in it, or
if the side wall is cracked, contact a Yamaha dealer or
other qualified mechanic and have the tire replaced.
1. Tread depth 2. Side wall 3. wear indicator
WARNING:
4-6
Proper loading of your motorcycle is important for the
handling, braking, and other performance and safety
characteristics of your motorcyle. Do not carry loosely
packed items that can shift. Securely pack your
heaviest items close to the center of the motorcycle,
and distribute the weight evenly from side to side.
Properly adjust the suspension for your load, and
check the condition and pressure of your tires. NEVER
OVERLOAD YOUR MOTORCYCLE. Make sure the total
weight of the cargo, rider, passenger, and accessories
(fairing, saddlebags, etc. if approved for this model)
does not exceed the maximum load of the motorcycle.
Operation of an overloaded motorcycle could cause
tire damage, an accident, or even injury.
2. Tire inspection
Always check the tires before operating the motorcycle.
If a tire tread shows crosswise lines (minimum tread
depth), if the tire has a nail or glass fragments in it, or
if the side wall is cracked, contact a Yamaha dealer or
other qualified mechanic and have the tire replaced.
1. Tread depth 2. Side wall 3. wear indicator
WARNING:

4-7 After extensive tests, the tires listed below have been
approved by Yanaha for this model. The front and rear
tires should always be by the same manufacturer and
of the same design. No guarantee concerning handling
characteristics can be given if a tire combination other
than one approved by Yamaha is used on this
motorcycle.
Front
Rear
Size Manufacturer
Type
Minimum tire tread depth
(from and rear)0,8 mm (0.0315 in) 2.75-18 PIRELLI
42P MT 39
90/90-18 PIRELLI
57P MT 15
1. It is dangerous to ride with a worn-out tire. When
the tire tread begin to show signs of wear, replace
the tire immediately. Brakes, tires and related wheel
parts should be left to a Yamaha dealer.
2. Patching a punctured tube is not recommended. If
it is absolutely necessary to do so, use great care
and replace the tube as soon as possible with a
good quality replacement.
WARNING:WARNING:
4-7 After extensive tests, the tires listed below have been
approved by Yanaha for this model. The front and rear
tires should always be by the same manufacturer and
of the same design. No guarantee concerning handling
characteristics can be given if a tire combination other
than one approved by Yamaha is used on this
motorcycle.
Front
Rear
Size Manufacturer
Type
Minimum tire tread depth
(from and rear)0,8 mm (0.0315 in) 2.75-18 PIRELLI
42P MT 39
90/90-18 PIRELLI
57P MT 15
1. It is dangerous to ride with a worn-out tire. When
the tire tread begin to show signs of wear, replace
the tire immediately. Brakes, tires and related wheel
parts should be left to a Yamaha dealer.
2. Patching a punctured tube is not recommended. If
it is absolutely necessary to do so, use great care
and replace the tube as soon as possible with a
good quality replacement.
WARNING:WARNING:

$Always wipe off spilled fuel immediately with a dry and clean
soft cloth. Fuel may deteriorate painted surfaces or plastic
parts. Fuel
1. Fuel level 2. Filler tube
Make sure there is sufficient fuel in the tank.
Do not overfill the fuel tank. Avoid spilling fuel on the
hot engine. Do not fill the fuel tank above the bottom of
the filler tube as shown in the illustration or it may
overflow when the fuel heats up later and expands.
Recommended fuel:
UNLEADED FUEL
Fuel tank capacity:
Total:
13.0 L ( 2.860 Imp gal, 3.434 US gal)
Reserve:
1.7 L ( 0.374 Imp gal, 0.450 Us gal)
WARNING:
CAUTION:
Your Yamaha engine has been designed to use regular
unleaded gasoline with a pump octane number ([R+m]/2)
of 86 or higher, or research octane number of 91 or higher.
If knocking or pinging occurs, use a different brand of
gasoline or premium unleaded fuel. Unleaded fuel will give
you longer spark plug life and reduced maintenance cost.
If unleaded gasoline is not available, then leaded regular
gasoline can be used.
Gasohol
There are two types of gasohol; gasohol containing ethanol
and that containing methanol. Gasohol containing ethanol
can be used if ethanol content does not exceed 10%.
Gasohol containing methanol is not recommended by
Yamaha because it can cause fuel system damage or
vehicle performance problems.
$Always wipe off spilled fuel immediately with a dry and clean
soft cloth. Fuel may deteriorate painted surfaces or plastic
parts. Fuel
1. Fuel level 2. Filler tube
Make sure there is sufficient fuel in the tank.
Do not overfill the fuel tank. Avoid spilling fuel on the
hot engine. Do not fill the fuel tank above the bottom of
the filler tube as shown in the illustration or it may
overflow when the fuel heats up later and expands.
Recommended fuel:
UNLEADED FUEL
Fuel tank capacity:
Total:
13.0 L ( 2.860 Imp gal, 3.434 US gal)
Reserve:
1.7 L ( 0.374 Imp gal, 0.450 Us gal)
WARNING:
CAUTION:
Your Yamaha engine has been designed to use regular
unleaded gasoline with a pump octane number ([R+m]/2)
of 86 or higher, or research octane number of 91 or higher.
If knocking or pinging occurs, use a different brand of
gasoline or premium unleaded fuel. Unleaded fuel will give
you longer spark plug life and reduced maintenance cost.
If unleaded gasoline is not available, then leaded regular
gasoline can be used.
Gasohol
There are two types of gasohol; gasohol containing ethanol
and that containing methanol. Gasohol containing ethanol
can be used if ethanol content does not exceed 10%.
Gasohol containing methanol is not recommended by
Yamaha because it can cause fuel system damage or
vehicle performance problems.

TURN THE MAIN SWITCH TO “ON” AND ENGINE STOP SWITCH TO “ ”
5-3
Before going through the following steps, check the
function of the clutch switch (See page 3-15)
ADVERTENCIA:
IF TRANSMISSION IS IN GEARPULL IN CLUTCH LEVER
AND PUSH STARTER SWITCH; ENGINE WILL START
MOTORCYCLE CAN BE RIDDEN
IF TRANSMISSION IS IN NEUTRAL
PUSH STARTER SWITCH; ENGINE WILL START
PUT TRANSMISSION IN GEAR
MOTORCYCLE CAN BE RIDDEN
WARNING:
TURN THE MAIN SWITCH TO “ON” AND ENGINE STOP SWITCH TO “ ”
5-3
Before going through the following steps, check the
function of the clutch switch (See page 3-15)
ADVERTENCIA:
IF TRANSMISSION IS IN GEARPULL IN CLUTCH LEVER
AND PUSH STARTER SWITCH; ENGINE WILL START
MOTORCYCLE CAN BE RIDDEN
IF TRANSMISSION IS IN NEUTRAL
PUSH STARTER SWITCH; ENGINE WILL START PUT TRANSMISSION IN GEAR
MOTORCYCLE CAN BE RIDDEN
WARNING:

5-7
2. 150 ~ 500 Km:
Avoid prolonged operation above 1/2 throttle. Allow the
machine to rev freely through the gears, but do not use
full throttle at any time.
3. 500 ~ 1,000 Km: Avoid cruising speeds in excess of 3/4 throttle.
After 1,000Km of operation, be sure to replace the engine
oil.
4. After 1,000 Km: Avoid prolonged full throttle operation. Vary speeds
occasionally.
If any engine trouble should occur during the break-in
period, consult a Yamaha dealer immediately. Parking
When parking the motorcycle, stop the engine and remove
the ignition key. Turn the fuel cock to “OFF” whenever
stopping the engine.
The muffler and exhaust pipe are hot. Park the
motorcycle in a place where pedestrians or children
are not likely to touch the motorcycle. Do not park the
motorcycle on a slope or soft ground; the motorcycle
may fall over.
CAUTION:
CAUTION:
WARNING:
5-7
2. 150 ~ 500 Km:
Avoid prolonged operation above 1/2 throttle. Allow the
machine to rev freely through the gears, but do not use
full throttle at any time.
3. 500 ~ 1,000 Km: Avoid cruising speeds in excess of 3/4 throttle.
After 1,000Km of operation, be sure to replace the engine
oil.
4. After 1,000 Km: Avoid prolonged full throttle operation. Vary speeds
occasionally.
If any engine trouble should occur during the break-in
period, consult a Yamaha dealer immediately. Parking
When parking the motorcycle, stop the engine and remove
the ignition key. Turn the fuel cock to “OFF” whenever
stopping the engine.
The muffler and exhaust pipe are hot. Park the
motorcycle in a place where pedestrians or children
are not likely to touch the motorcycle. Do not park the
motorcycle on a slope or soft ground; the motorcycle
may fall over.
CAUTION:
CAUTION:
WARNING:

NOTE:
If you do not have necessary tools required during a service
operation, take your motorcycle to a Yamaha dealer for
service.
Modifications to this motorcycle not approved by
Yamaha may cause loss of performance, excessive
emissions, and render it unsafe for use. Consult a
Yamaha dealer before attempting any changes.
!
Tool kit
The tools provided in the owner’s tool kit are to assist you
in the performance of periodic maintenance. However, some
other tools such as a torque wrench are also necessary to
perform the maintenance correctly.
1. Tool kit
1
WARNING:
NOTE:
If you do not have necessary tools required during a service
operation, take your motorcycle to a Yamaha dealer for
service.
Modifications to this motorcycle not approved by
Yamaha may cause loss of performance, excessive
emissions, and render it unsafe for use. Consult a
Yamaha dealer before attempting any changes.
!
Tool kit
The tools provided in the owner’s tool kit are to assist you
in the performance of periodic maintenance. However, some
other tools such as a torque wrench are also necessary to
perform the maintenance correctly.
1. Tool kit
1
WARNING: