2003 YAMAHA YBR125 recommended oil

6-4
*
**
***
: It is recommended that these items be serviced by a Yamaha dealer.
: Molybdenum disulfide grease.
: Lithium soap based grease.
NOTE:
Brake fluid replacement:
1. When disassembling the master cylinder or caliper cylinder, replace the brake fluid. Normally check the brake fluid level and add fluid as required.
2. On the inner parts of the master cylinder and caliper cylinder, replace the oil seals every two years.
3. Replace the brake hoses every four years, or if cracked or damaged.
ITEM
Front forks*
Centerstand and
sidestand
Control cables: throttle /
clutch / front brake Rear shock absorber*
Drive chain
Fittings / fasteners
Check operation / oil leakage.
Check operation, looseness.
Adujst / Check operation
Lubricate every 12,000 Km.
Check chain slack / lubricate, adjust if necessary.
Check looseness. REMARKS1,000KM
Lights and flashers
Nuts and bolts
Motorcycle Aspect
Check operation.
Check tighten.
General Check
EVERY
3,000KM
OR EVERY3,000KM
Check operation / oil leakage.
Every 500 Km
6-4
*
**
***
: It is recommended that these items be serviced by a Yamaha dealer.
: Molybdenum disulfide grease.
: Lithium soap based grease.
NOTE:
Brake fluid replacement:
1. When disassembling the master cylinder or caliper cylinder, replace the brake fluid. Normally check the brake fluid level and add fluid as required.
2. On the inner parts of the master cylinder and caliper cylinder, replace the oil seals every two years.
3. Replace the brake hoses every four years, or if cracked or damaged.
ITEM
Front forks*
Centerstand and
sidestand
Control cables: throttle /
clutch / front brake Rear shock absorber*
Drive chain
Fittings / fasteners
Check operation / oil leakage.
Check operation, looseness.
Adujst / Check operation
Lubricate every 12,000 Km.
Check chain slack / lubricate, adjust if necessary.
Check looseness. REMARKS1,000KM
Lights and flashers
Nuts and bolts
Motorcycle Aspect
Check operation.
Check tighten.
General Check
EVERY
3,000KM
OR EVERY3,000KM
Check operation / oil leakage.
Every 500 Km

Torque specifications
Use a torque wrench to tighten these items. It is
recommended that these items be checked occasionally,
specially before a long trip. Always check the tightness of
these items whenever they are loosened for any reason.
!
Torque
Nm
kgf.m Item
Spark plug
Engine oil drain plug
Oil check bolt
Front wheel axle nut
Rear wheel axle nut
12,5
20
7
59
911,25
2,0
0,7
5,9
9,1
A
(Nut)
10 mm
12 mm
14 mm
17 mm
19 mm
22 mmB
(Bolt)
6 mm
8 mm
10 mm
12 mm
14 mm
16 mmGeneral torque especifications
Nm
6
15
30
55
85
130kgf.m
0,6
1,5
3,0
5,5
8,5
13,0lbf. ft
4,3
11
22
40
61
94
lbf.ft
9.0
14.5
5.0
43
66
Torque specifications
Use a torque wrench to tighten these items. It is
recommended that these items be checked occasionally,
specially before a long trip. Always check the tightness of
these items whenever they are loosened for any reason.
!
Torque
Nm
kgf.m Item
Spark plug
Engine oil drain plug
Oil check bolt
Front wheel axle nut
Rear wheel axle nut
12,5
20
7
59
911,25
2,0
0,7
5,9
9,1
A
(Nut)
10 mm
12 mm
14 mm
17 mm
19 mm
22 mmB
(Bolt)
6 mm
8 mm
10 mm
12 mm
14 mm
16 mmGeneral torque especifications
Nm
6
15
30
55
85
130kgf.m
0,6
1,5
3,0
5,5
8,5
13,0lbf. ft
4,3
11
22
40
61
94
lbf.ft
9.0
14.5
5.0
43
66

6-8
e. Fill engine with oil. Install the oil filter cap and tighten.
NOTE:
Recommended engine oil classification; API Service “SH”
type or equivalent
Do not put in any chemical additives. Engine oil also
lubricates the clutch and additives could cause clutch
slippage.
Be sure no foreign material enters the crankcase. f. Start the engine and warm up for a few minutes.While warming up, check for oil leakage. If oil
leakage is found, stop the engine immediately, and
check for the cause.
g. Stop the engine and check the oil level.
After replacing the engine oil, be sure to check the oil
pressure.
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)
Recommended oil:
Yamalube 4
CAUTION:
CAUTION:
CAUTION:
6-8
e. Fill engine with oil. Install the oil filter cap and tighten.
NOTE:
Recommended engine oil classification; API Service “SH”
type or equivalent
Do not put in any chemical additives. Engine oil also
lubricates the clutch and additives could cause clutch
slippage.
Be sure no foreign material enters the crankcase. f. Start the engine and warm up for a few minutes.While warming up, check for oil leakage. If oil
leakage is found, stop the engine immediately, and
check for the cause.
g. Stop the engine and check the oil level.
After replacing the engine oil, be sure to check the oil
pressure.
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)
Recommended oil:
Yamalube 4
CAUTION:
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:
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:

!$
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.

6-23 Drive chain lubrication
The chain consists of many parts which work with each
other. If the chain is not maintained properly, it will wear out
quickly. Therefore, the chain must be serviced regularly.
This service is especially necessary when riding in dusty
areas.
1. Use Yamaha Chain and Cable Lube or any
brands of spray-type chain lubricant. First,
remove all dirt and mud from the chain with a
brush or cloth, then spray lubricant between both
rows of side plates and on all center rollers. The
chain should be lubricated every 500 km (300 mi).
2. To clean the chain, remove it from the machine,
dip it in solvent, and clean out as much dirt as
possible. Take the chain out of the solvent and
dry it. Immediately lubricate the chain to prevent
it from rusting.Cable inspection and lubrication
Damage to the outer housing of cables may allow
internal rusting and cause interfere with cable
movement. Replace damaged cables as soon as
possible to prevent unsafe conditions.
Lubricate the inner cable and the cable end. If it does not
operate smoothly, ask a Yamaha dealer to replace them.
RECOMMENDED LUBRICANT:
Engine oil SAE 20W50
WARNING:
6-23 Drive chain lubrication
The chain consists of many parts which work with each
other. If the chain is not maintained properly, it will wear out
quickly. Therefore, the chain must be serviced regularly.
This service is especially necessary when riding in dusty
areas.
1. Use Yamaha Chain and Cable Lube or any
brands of spray-type chain lubricant. First,
remove all dirt and mud from the chain with a
brush or cloth, then spray lubricant between both
rows of side plates and on all center rollers. The
chain should be lubricated every 500 km (300 mi).
2. To clean the chain, remove it from the machine,
dip it in solvent, and clean out as much dirt as
possible. Take the chain out of the solvent and
dry it. Immediately lubricate the chain to prevent
it from rusting.Cable inspection and lubrication
Damage to the outer housing of cables may allow
internal rusting and cause interfere with cable
movement. Replace damaged cables as soon as
possible to prevent unsafe conditions.
Lubricate the inner cable and the cable end. If it does not
operate smoothly, ask a Yamaha dealer to replace them.
RECOMMENDED LUBRICANT:
Engine oil SAE 20W50
WARNING:

6-24
Throttle cable and grip lubrication
The throttle twist grip assembly should be greased at the
time the cable is lubricated, since the grip must be removed
to get at the end of the throttle cable.
After removing the screws, hold the end of the cable up in
the air and put in several drops of lubricant. With the throttle
grip disassembled, coat the metal surface of the grip
assembly with a suitable all-purpose grease.Brake and shift pedals
Lubricate the pivoting parts.
RECOMMENDED LUBRICANT: Engine oil SAE 20W50
Brake and clutch levers
Lubricate the pivoting parts. RECOMMENDED LUBRICANT: Engine oil SAE 20W50
Sidestand
Lubricate the pivoting parts. Check to see that the sidestand
moves up and down smoothly. RECOMMENDED LUBRICANT: Engine oil SAE 20W50
WARNING:
If the sidestand does not move smoothly, consult a
Yamaha dealer.
CAUTION:
6-24
Throttle cable and grip lubrication
The throttle twist grip assembly should be greased at the
time the cable is lubricated, since the grip must be removed
to get at the end of the throttle cable.
After removing the screws, hold the end of the cable up in
the air and put in several drops of lubricant. With the throttle
grip disassembled, coat the metal surface of the grip
assembly with a suitable all-purpose grease. Brake and shift pedals
Lubricate the pivoting parts.
RECOMMENDED LUBRICANT: Engine oil SAE 20W50
Brake and clutch levers
Lubricate the pivoting parts. RECOMMENDED LUBRICANT: Engine oil SAE 20W50
Sidestand
Lubricate the pivoting parts. Check to see that the sidestand
moves up and down smoothly. RECOMMENDED LUBRICANT: Engine oil SAE 20W50
WARNING:
If the sidestand does not move smoothly, consult a
Yamaha dealer.
CAUTION: