check oil YAMAHA YBR125 2003 User Guide

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:

!$ Oil pressure1. Remove the check bolt 
 in the cylinder head.
2. Start the engine and keep it idling until oil flows out
of the bleed hole. If no oil comes out after one
minute, turn off the engine immediately so it will
not seize. In such a case go to the nearest Yamaha
dealer or other qualified mechanic for repairs.
3. After checking, tighten the check bolt to the
specified torque.
Check bolt torque:
7 N.m (0.7 Kgf.m, 5.0 lbf.ft)
1. Check bolt
1
!$ Oil pressure1. Remove the check bolt 
 in the cylinder head.
2. Start the engine and keep it idling until oil flows out
of the bleed hole. If no oil comes out after one
minute, turn off the engine immediately so it will
not seize. In such a case go to the nearest Yamaha
dealer or other qualified mechanic for repairs.
3. After checking, tighten the check bolt to the
specified torque.
Check bolt torque:
7 N.m (0.7 Kgf.m, 5.0 lbf.ft)
1. Check bolt
1

!$
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.

6-24
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:

6-25
1. Visual check
Check for scratches or damage on the inner tube and
excessive oil leakage from the front fork.
2. Operation check
Place the motorcycle on a level place.
a. Hold the motorcycle in an upright position and apply
the front brake.
b. Push down hard several times and check if the fork
rebounds smoothly.
If any damage or unsmooth movement is found with
the front fork, consult a Yamaha dealer. Front fork inspection
Securely support the motorcycle so there is no danger
of it falling over.
CAUTION:
WARNING:
6-25
1. Visual check
Check for scratches or damage on the inner tube and
excessive oil leakage from the front fork.
2. Operation check
Place the motorcycle on a level place.
a. Hold the motorcycle in an upright position and apply
the front brake.
b. Push down hard several times and check if the fork
rebounds smoothly.
If any damage or unsmooth movement is found with
the front fork, consult a Yamaha dealer. Front fork inspection
Securely support the motorcycle so there is no danger
of it falling over.
CAUTION:
WARNING:

6-28
2
1
Battery electrolyte is poisonous and dangerous,
causing severe burns, etc. It contains sulfuric acid.
Avoid contact with skin, eyes or clothing.
Antidote:
EXTERNAL: Flush with water.
INTERNAL: Drink large quantities of water or milk.
Follow with milk of magnesia, beaten egg, or vegetable
oil. Call a physician immediately.
EYES: Flush with water for 15 minutes and get prompt
medical attention.
Batteries produce explosive gases. Keep sparks, flame,
cigarrettes, etc., away. Ventilate when charging or using
it in an enclosed space. Always shield your eyes when
working near batteries.
KEEP OUT OF REACH OF CHILDREN.A poorly maintained battery will corrode and discharge
quickly. The battery fluid should be checked at least once
a month.
The level should be between the minimum and maximum
marks. Use only “distilled water” if refilling is necessary.
Normal tap water contains minerals which are harmful
to a battery; therefore, refill only with “distilled water”. Replenishing the battery fluid
1. Maximum marks
2. Minimum marks
CAUTION:
WARNING:
6-28
2
1
Battery electrolyte is poisonous and dangerous,
causing severe burns, etc. It contains sulfuric acid.
Avoid contact with skin, eyes or clothing.
Antidote:
EXTERNAL: Flush with water.
INTERNAL: Drink large quantities of water or milk.
Follow with milk of magnesia, beaten egg, or vegetable
oil. Call a physician immediately.
EYES: Flush with water for 15 minutes and get prompt
medical attention.
Batteries produce explosive gases. Keep sparks, flame,
cigarrettes, etc., away. Ventilate when charging or using
it in an enclosed space. Always shield your eyes when
working near batteries.
KEEP OUT OF REACH OF CHILDREN.A poorly maintained battery will corrode and discharge
quickly. The battery fluid should be checked at least once
a month.
The level should be between the minimum and maximum
marks. Use only “distilled water” if refilling is necessary.
Normal tap water contains minerals which are harmful
to a battery; therefore, refill only with “distilled water”. Replenishing the battery fluid
1. Maximum marks
2. Minimum marks
CAUTION:
WARNING: