2004 YAMAHA YBR125 Owners Manual

3-11
1. Push 2. Release 3. Turn
LOCK OFF (PUSH)
Steering lock
The steering is locked when the main switch is turned to
ìLOCKî. To lock the steering, turn the handlebars all the
way to the left. With the key at ìOFFî position, push it into
the main switch and release it, turn it counterclockwise to
ìLOCKî, and remove the key. To release the lock, turn the
key to ìOFFî.
Never turn the key to “LOCK” position when the
motorcycle is moving.
WARNING:
3-11
1. Push 2. Release 3. Turn
LOCK OFF (PUSH)
Steering lock
The steering is locked when the main switch is turned to
ìLOCKî. To lock the steering, turn the handlebars all the
way to the left. With the key at ìOFFî position, push it into
the main switch and release it, turn it counterclockwise to
ìLOCKî, and remove the key. To release the lock, turn the
key to ìOFFî.
Never turn the key to “LOCK” position when the
motorcycle is moving.
WARNING:

3-12To remove the seat, remove the side covers (see page 3-
13), then remove the bolts and release the lobe from the
rear portion of the frame.
To reinstall the seat, insert the lobe into the receptacle on
the frame, then tighten the bolts.
Reinstall the side covers. Seat
3-12To remove the seat, remove the side covers (see page 3-
13), then remove the bolts and release the lobe from the
rear portion of the frame.
To reinstall the seat, insert the lobe into the receptacle on
the frame, then tighten the bolts.
Reinstall the side covers. Seat

Insert the key and turn it 1/4 clockwise. Pull the cover
towards yourself 1 to release the fitting pin, and then, pull
it forward 2.
To reinstall, reverse the removal procedures.
3-13Remove the key nad then pull the cover towards yourself
1 to release the fitting pin, and then, pull it forward 2.
To reinstall, reverse the removal procedures.
Side covers
1. Pull 2. Pull forward1. Pull 2. Pull forward
Insert the key and turn it 1/4 clockwise. Pull the cover
towards yourself 1 to release the fitting pin, and then, pull
it forward 2.
To reinstall, reverse the removal procedures.
3-13Remove the key nad then pull the cover towards yourself
1 to release the fitting pin, and then, pull it forward 2.
To reinstall, reverse the removal procedures.
Side covers
1. Pull 2. Pull forward1. Pull 2. Pull forward

3-14 Rear shock absorber adjustment
1. Spring preload adjusting ring 2.Position indicator
Each shock absorber is equipped with a spring preload
adjusting ring. Adjust spring preload as follows.
Turn the adjusting ring in direction a to increase spring
preload and in direction b to decrease spring preload. Make
sure that the appropriate notch in the adjusting ring is aligned
with the position indicator on the rear shock absorber.
Always adjust each shock absorber to the same setting.
Uneven adjustment can cause poor handling and loss of
stability.
1234
56
7 Adjusting
position
SoftStandard
Hard
CAUTION:
3-14 Rear shock absorber adjustment
1. Spring preload adjusting ring 2.Position indicator
Each shock absorber is equipped with a spring preload
adjusting ring. Adjust spring preload as follows.
Turn the adjusting ring in direction a to increase spring
preload and in direction b to decrease spring preload. Make
sure that the appropriate notch in the adjusting ring is aligned
with the position indicator on the rear shock absorber.
Always adjust each shock absorber to the same setting.
Uneven adjustment can cause poor handling and loss of
stability.
1234
56
7 Adjusting
position
SoftStandard
Hard
CAUTION:

PRE-OPERATION CHECKS
Before using this motorcycle, check the following points:
ITEM ROUTINE
PAGE
Check operation, condition and free play.
Adjust if necessary
Clutch
Throttle grip / cableCheck for smooth operation.
Lubricate / Adjust if necessary
Check oil level / add oil as necessary
Engine oil
Drive chainCheck chain slack and condition. Lubricate if necessary
Adjust if necessary.
Air filter
Control and meter cableCheck tire pressure, wear, damage and spoke tightness
Check for smooth operation.
Lubricate if necessary6-16 ~ 6-18
6-14 , 6-22
4-3 , 6-6 , 6-9
6-19 ~ 6-21
6-10 ~ 6-11
4-3 ~ 4-6 , 6-31~ 6-33
6-21 Check operation, condition and free play.
Adjust if necessary
Wheels / Tires
Clean and oil it frequently.6-18 Brakes
4-1
PRE-OPERATION CHECKS
Before using this motorcycle, check the following points:
ITEM ROUTINE
PAGE
Check operation, condition and free play.
Adjust if necessary
Clutch
Throttle grip / cableCheck for smooth operation.
Lubricate / Adjust if necessary
Check oil level / add oil as necessary
Engine oil
Drive chainCheck chain slack and condition. Lubricate if necessary
Adjust if necessary.
Air filter
Control and meter cableCheck tire pressure, wear, damage and spoke tightness
Check for smooth operation.
Lubricate if necessary6-16 ~ 6-18
6-14 , 6-22
4-3 , 6-6 , 6-9
6-19 ~ 6-21
6-10 ~ 6-11
4-3 ~ 4-6 , 6-31~ 6-33
6-21 Check operation, condition and free play.
Adjust if necessary
Wheels / Tires
Clean and oil it frequently.6-18 Brakes
4-1

4-2 NOTE:
Pre-operation checks should be made each time the motorcycle is used. Such 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 which 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 them during inspection or repair.
2. If any item is not working properly, have it inspected and repaired before operating the motorcycle.
ITEMROUTINE
PAGE
Sidestand
Fittings / FastenersCheck all chassi fittings and fasteners.
Tighten / Adjust, if necessary
Check fuel level / top up as required.
Fuel tank
Lights, signals and switches
BatteryCheck electrolyte level.
Replenish with ìdistilled waterî if necessary.6-22
4-6 , 6-5
4-6 , 6-28 ~ 6-30
6-25 ~ 6-276-22
4-7
Check for proper operation
Front brake and clutch
lever pivotsCheck for smooth operation.
Lubricate if necessary
Check for smooth operation.
Lubricate if necessary
6-22 Check for smooth operation.
Lubricate if necessary Rear brake and shift pedal
shafts
WARNING:
4-2 NOTE:
Pre-operation checks should be made each time the motorcycle is used. Such 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 which 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 them during inspection or repair.
2. If any item is not working properly, have it inspected and repaired before operating the motorcycle.
ITEMROUTINE
PAGE
Sidestand
Fittings / FastenersCheck all chassi fittings and fasteners.
Tighten / Adjust, if necessary
Check fuel level / top up as required.
Fuel tank
Lights, signals and switches
BatteryCheck electrolyte level.
Replenish with ìdistilled waterî if necessary.6-22
4-6 , 6-5
4-6 , 6-28 ~ 6-30
6-25 ~ 6-276-22
4-7
Check for proper operation
Front brake and clutch
lever pivotsCheck for smooth operation.
Lubricate if necessary
Check for smooth operation.
Lubricate if necessary
6-22 Check for smooth operation.
Lubricate if necessary Rear brake and shift pedal
shafts
WARNING:

4-3
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: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:
4-3
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: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:

4-4
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*:116 Kg ( 256 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 kpa2.0 kg/cm
2
28 PSI / 200Kpa
1.75 kg/cm2
25 PSI / 175 Kpa2.25 kg/cm
2
32 PSI / 225 Kpa
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.
WARNING:
4-4
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*:116 Kg ( 256 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 kpa2.0 kg/cm
2
28 PSI / 200Kpa
1.75 kg/cm2
25 PSI / 175 Kpa2.25 kg/cm
2
32 PSI / 225 Kpa
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.
WARNING: