light YAMAHA XTZ125 2003 User Guide

6-4
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*
Sidestand
Control cables: throttle /
clutch / front brakeRear shock absorber*
Drive chain
Fittings / fastenersCheck 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 AspectCheck operation.
Check tighten.
General Check
EVERY
3,000KM
OR EVERY
6 MONTHS3,000KM
Check operation / oil leakage.
Every 500 Km
* : 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*
Sidestand
Control cables: throttle /
clutch / front brakeRear shock absorber*
Drive chain
Fittings / fastenersCheck 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 AspectCheck operation.
Check tighten.
General Check
EVERY
3,000KM
OR EVERY
6 MONTHS3,000KM
Check operation / oil leakage.
Every 500 Km

6-6
6-6






 
1. Oil level measurement
a. Place the motorcycle on a level place and hold it in an
upright position. Warm up the engine for several
minutes.
NOTE:
Be sure the motorcycle is positioned straight up when
checking the oil level. A slight tilt toward the side can result
in false readings.
b. With the engine stopped, with the engine stopped,
unscrew the oil filler cap/ dispstick and rest it on the
threads of the ok.
NOTE:
Wait a few minutes until the oil level settles before checking.
c. remove the oil filler cap/ dispstick, clean it with a dry
cloth and check the oil level.
NOTE:
To check the oil level the oil filler cap/ dispstick can not be
screwed, just lightly seated in place.
d. The oil level should be between the maximum and
minimum marks. If the level is low, add oil to raise it to
the indicated level, check for oil leakage. Engine oil






 
1. Oil level measurement
a. Place the motorcycle on a level place and hold it in an
upright position. Warm up the engine for several
minutes.
NOTE:
Be sure the motorcycle is positioned straight up when
checking the oil level. A slight tilt toward the side can result
in false readings.
b. With the engine stopped, with the engine stopped,
unscrew the oil filler cap/ dispstick and rest it on the
threads of the ok.
NOTE:
Wait a few minutes until the oil level settles before checking.
c. remove the oil filler cap/ dispstick, clean it with a dry
cloth and check the oil level.
NOTE:
To check the oil level the oil filler cap/ dispstick can not be
screwed, just lightly seated in place.
d. The oil level should be between the maximum and
minimum marks. If the level is low, add oil to raise it to
the indicated level, check for oil leakage. Engine oil

6-7
6-7
a. Warm up the engine for a few minutes.
b. Stop the engine. Place an oil pan under the engine and
remove the dipstick.
c. Remove the drain plug and drain the oil.
d. Reinstall the drain plug, check if the gasket is damaged
and lighten it to the specified torque.

 




2. Engine oil and filter replacement
Tightening torque:
Drain plug:
20 N.m (2.0 kgf.m, 14.5 lbf.t)
a. Warm up the engine for a few minutes.
b. Stop the engine. Place an oil pan under the engine and
remove the dipstick.
c. Remove the drain plug and drain the oil.
d. Reinstall the drain plug, check if the gasket is damaged
and lighten it to the specified torque.

 




2. Engine oil and filter replacement
Tightening torque:
Drain plug:
20 N.m (2.0 kgf.m, 14.5 lbf.t)

6-15
6-15Before installing the spark plug, measure the electrode gap
with a wire thickness gauge and adjust the gap to
specification as necessary.
Standard spark plug:
CR7HSA (NGK) and U22FSR-U (DENSO)


Spark plug gap:
0.7 mm ( 0.028 in) Spark plug inspection
The spark plug is an important engine component and is
easy to inspect. The condition of the spark plug can indicate
the condition of the engine.
The ideal color on the white porcelain insulator around the
center electrode is a medium to light tan color for a
motorcycle that is being ridden normally. Do not attempt to
diagnose any problems yourself. Instead, take the
motorcycle to a Yamaha dealer. You should periodically
remove and inspect the spark plug because heat and
deposits will cause the spark plug to slowly break down
and erode.
If electrode erosion becomes excessive, or if carbon and
other deposits are excessive, you should replace the spark
plug with the specified plug.NOTE:
If a torque wrench is not available when you are installing a
spark plug, a good estimate of the correct torque is 1/4 to
1/2 turn past finger tight. Have the spark plug torqued to
the correct value as soon as possible with a torque wrench.
When installing the plug, always clean the gasket surface
and use a new gasket. Wipe off any grime from the threads,
and torque the spark plug properly.
Spark plug torque:
12.5 N.m (1.25 Kgf.m, 9 lbf.ft)
Before installing the spark plug, measure the electrode gap
with a wire thickness gauge and adjust the gap to
specification as necessary.
Standard spark plug:
CR7HSA (NGK) and U22FSR-U (DENSO)


Spark plug gap:
0.7 mm ( 0.028 in) Spark plug inspection
The spark plug is an important engine component and is
easy to inspect. The condition of the spark plug can indicate
the condition of the engine.
The ideal color on the white porcelain insulator around the
center electrode is a medium to light tan color for a
motorcycle that is being ridden normally. Do not attempt to
diagnose any problems yourself. Instead, take the
motorcycle to a Yamaha dealer. You should periodically
remove and inspect the spark plug because heat and
deposits will cause the spark plug to slowly break down
and erode.
If electrode erosion becomes excessive, or if carbon and
other deposits are excessive, you should replace the spark
plug with the specified plug.NOTE:
If a torque wrench is not available when you are installing a
spark plug, a good estimate of the correct torque is 1/4 to
1/2 turn past finger tight. Have the spark plug torqued to
the correct value as soon as possible with a torque wrench.
When installing the plug, always clean the gasket surface
and use a new gasket. Wipe off any grime from the threads,
and torque the spark plug properly.
Spark plug torque:
12.5 N.m (1.25 Kgf.m, 9 lbf.ft)

6-19
6-19ADVERTENCIA
After adjusting the pedal height adjust brake pedal free
play.
2. Freeplay.
The rear brake pedal free play should be adjusted to
20 ~ 30 mm (0.8 ~ 1.2 in) at the brake pedal end. Turn
the adjuster on the brake rod clockwise to reduce play
or counterclockwise to increase play.
ADVERTENCIA
Brake pedal free play should be checked whenever the
chain is adjusted or the rear wheel is removed and then
reinstalled.
If it is impossible to make proper adjustment, consult
a Yamaha dealer.
Check the operation of the brake light after adjusting
the rear brake.

!&

#

$(*-.*)*+-
,
WARNING:
WARNING:
ADVERTENCIA
After adjusting the pedal height adjust brake pedal free
play.
2. Freeplay.
The rear brake pedal free play should be adjusted to
20 ~ 30 mm (0.8 ~ 1.2 in) at the brake pedal end. Turn
the adjuster on the brake rod clockwise to reduce play
or counterclockwise to increase play.
ADVERTENCIA
Brake pedal free play should be checked whenever the
chain is adjusted or the rear wheel is removed and then
reinstalled.
If it is impossible to make proper adjustment, consult
a Yamaha dealer.
Check the operation of the brake light after adjusting
the rear brake.

!&

#

$(*-.*)*+-
,
WARNING:
WARNING:

6-20
6-20
Brake light switch adjustment
The rear brake light switch is activated by the brake pedal
and is properly adjusted when the brake light comes on
just before braking takes effect. To adjust the rear brake
light switch, hold the switchbody so it does not rotate while
turning the adjusting nut.
Turn the adjusting nut in direction
to make the brake
light come on earlier.
Turn the adjusting nut in direction  to make the brake
light come on later.Checking the front brake pads and rear brake shoes
A wear indicator is provided on each brake. This indicator
allows checking of brake pad/shoe wear without
disassembling the brake.

 
 "  !& 


Brake light switch adjustment
The rear brake light switch is activated by the brake pedal
and is properly adjusted when the brake light comes on
just before braking takes effect. To adjust the rear brake
light switch, hold the switchbody so it does not rotate while
turning the adjusting nut.
Turn the adjusting nut in direction
to make the brake
light come on earlier.
Turn the adjusting nut in direction  to make the brake
light come on later.Checking the front brake pads and rear brake shoes
A wear indicator is provided on each brake. This indicator
allows checking of brake pad/shoe wear without
disassembling the brake.

 
 "  !& 

6-25
6-25
CAUTION:
Too little chain slack will overload the engine and other
vital parts. Keep the slack within the specified limits.
Axle nut torque:
80 N.m (8.0 Kgf.m, 58 lbf.ft)
5. Adjust the free play in the brake pedal.
CAUTION:
Check the operation of the brake light after adjusting
the rear brake.1. Loosen the rear brake adjuster.
2. Loosen the axle nut.
3. Turn both left and right chain puller the same
amount.Make sure that they are in the same position
for proper wheel alignment. Drive chain slack adjustment

!&
 
 .!

4. After adjusting, be sure to tighten the axle nut.
CAUTION:
Too little chain slack will overload the engine and other
vital parts. Keep the slack within the specified limits.
Axle nut torque:
80 N.m (8.0 Kgf.m, 58 lbf.ft)
5. Adjust the free play in the brake pedal.
CAUTION:
Check the operation of the brake light after adjusting
the rear brake.1. Loosen the rear brake adjuster.
2. Loosen the axle nut.
3. Turn both left and right chain puller the same
amount.Make sure that they are in the same position
for proper wheel alignment. Drive chain slack adjustment

!&
 
 .!

4. After adjusting, be sure to tighten the axle nut.

6-35
6-35
Headlight bulb replacementThis motocycle this equipped with halogen bulb on its
headlight.
If the headlight bulb burns out, replace the bulb as follows:
1. Remove the cowling by loosing its bolts.
2. Loosen the bulb connectors.
ADVERTENCIA
Keep flammable products and your hands away from
the bulb while it is on, as it is hot. Do not touch the
bulb until it cools down


"

 
 
WARNING:
Headlight bulb replacementThis motocycle this equipped with halogen bulb on its
headlight.
If the headlight bulb burns out, replace the bulb as follows:
1. Remove the cowling by loosing its bolts.
2. Loosen the bulb connectors.
ADVERTENCIA
Keep flammable products and your hands away from
the bulb while it is on, as it is hot. Do not touch the
bulb until it cools down


"

 
 
WARNING:

6-36
6-36

1




3. Remove the rubber cover.
4. Remove the clip by pushing its tab dow.
CAUTION:
Avoid touching the glass part of the headlight bulb to keep
it free from oil, otherwise the transparency of the glass, the
life of the bulb and the luminous flux will be adversely
affected. If the headlight bulb gets soiled, thoroughly clean
it with a cloth moistened with alcohol or lacquer thinner.
5. Put a new bulb, install the socket and the bulb rubber
cover.
6. Reconnect the connectors.
7. Reinstall the headlight assy. If it is necessary to adjust
the headlight beam, please consult a Yamaha dealer.

1




3. Remove the rubber cover.
4. Remove the clip by pushing its tab dow.
CAUTION:
Avoid touching the glass part of the headlight bulb to keep
it free from oil, otherwise the transparency of the glass, the
life of the bulb and the luminous flux will be adversely
affected. If the headlight bulb gets soiled, thoroughly clean
it with a cloth moistened with alcohol or lacquer thinner.
5. Put a new bulb, install the socket and the bulb rubber
cover.
6. Reconnect the connectors.
7. Reinstall the headlight assy. If it is necessary to adjust
the headlight beam, please consult a Yamaha dealer.

6-40
6-40
Rear wheel installationWhen installing the rear wheel, reverse the removal
procedures. Pay attention to the following points:
1. Be sure the slot in the brake shoe plate is fit over the
stopper on the rear arm.
2. Make sure the rear wheel axl is inserted from the right-
hand side and that the chain pullers are installed with
the punched side outward.
3. Adjust the drive chain.
4. Make sure the axle nut is properly torqued.
Axle nut torque:
80 N.m ( 8.0 Kgf.m, 58 lbf.ft)
5. Adjust the rear brake.(See page 6-18)
Check the operation of the brake light after adjusting
the rear brake
WARNING:
Rear wheel installationWhen installing the rear wheel, reverse the removal
procedures. Pay attention to the following points:
1. Be sure the slot in the brake shoe plate is fit over the
stopper on the rear arm.
2. Make sure the rear wheel axl is inserted from the right-
hand side and that the chain pullers are installed with
the punched side outward.
3. Adjust the drive chain.
4. Make sure the axle nut is properly torqued.
Axle nut torque:
80 N.m ( 8.0 Kgf.m, 58 lbf.ft)
5. Adjust the rear brake.(See page 6-18)
Check the operation of the brake light after adjusting
the rear brake
WARNING: