2005 YAMAHA XTZ125 Owners Manual

6-42
6-42 Troubleshooting chart
ADVERTENC
Never check the fuel system while smoking or in the
vicinity of an open flame.
WARNING:
Check if there is
fuel in the fuel tank
Use electric
starter
Remove spark plug
and check
electrode
Use electric starter 1. Fuel
2. Compression
3. Ignition
4. Battery *Enough fuel
No fuel
There is compression
No compression
Wet
Dry
Engine turns
over quickly
Engine turns
over slowlySupply fuel
Go to ignition check
Ask Yamaha dealer to inspect
Wipe clean with dry cloth and correct
spark plug gap or replace spark plugs
Ask Yamaha dealer to inspect
Battery good
Check fluid, recharge
and check
connections
Go to compression
check
Engine doesn’t start, go to
compression check
Open the throttle hal-way
and start the engine
Engine doesn’t start, ask
Yamaha dealer to inspect.Engine doesn’t start,
go to battery check
* Obs.: XTZ 125E
Troubleshooting chart
ADVERTENC
Never check the fuel system while smoking or in the
vicinity of an open flame.
WARNING:
Check if there is
fuel in the fuel tank
Use electric
starter
Remove spark plug
and check
electrode
Use electric starter 1. Fuel
2. Compression
3. Ignition
4. Battery *Enough fuel
No fuel
There is compression
No compression
Wet
Dry
Engine turns
over quickly
Engine turns
over slowlySupply fuel
Go to ignition check
Ask Yamaha dealer to inspect
Wipe clean with dry cloth and correct
spark plug gap or replace spark plugs
Ask Yamaha dealer to inspect
Battery good
Check fluid, recharge
and check
connections
Go to compression
check
Engine doesn’t start, go to
compression check
Open the throttle hal-way
and start the engine
Engine doesn’t start, ask
Yamaha dealer to inspect.Engine doesn’t start,
go to battery check
* Obs.: XTZ 125E

7-1
7-1 A. Cleaning
Frequent, thorough cleaning of your motorcycle will not only
enhance its appearance but will improve its general
performance and extend the useful life of many components.
1. Before cleaning the motorcycle:
a. Block off the end of the exhaust pipe to prevent water
entry; a plastic bag and strong rubber band may be
used.
b. Make sure the spark plug and all filler caps are properly
installed.
2. If the engine case is excessively greasy, apply
degreaser with a paint brush. Do not apply degreaser
to the chain, sprockets, or wheel axles.
3. Rinse the dirt and degreaser off with a garden hose,
Use only enough pressure to do the job.
CAUTION:
Excessive hose pressure may cause water seepage and
deterioration of wheel bearings, front fork, brakes,
transmission seals and electrical parts.
Many expensive repair bills have resulted from
improper high pressure detergent applications such as
those available in coin-operated car washers.
4. Once the majority of the dirt has been hosed off, wash
all surfaces with warm water and mild, detergent-type
soap. An old toothbrush or bottle brush is handy for
hard-to-get-at places.
5. Rinse the motorcycle off immediately with clean water
and dry all surfaces with a chamois, clean towel, or
soft absorbent cloth.
6. Dry the chain and lubricate it to prevent rust.
7. Clean the seat with a vinyl upholstery cleaner to keep
the cover pliable and glossy.
8. Automotive-type wax may be applied to all painted and
chrome-plated surfaces. Avoid combination cleaner-
waxes. Many contain abrasives which may mar the paint
or protective finish. When finished, start the engine and
let it idle for several minutes.
CLEANING AND STORAGE
A. Cleaning
Frequent, thorough cleaning of your motorcycle will not only
enhance its appearance but will improve its general
performance and extend the useful life of many components.
1. Before cleaning the motorcycle:
a. Block off the end of the exhaust pipe to prevent water
entry; a plastic bag and strong rubber band may be
used.
b. Make sure the spark plug and all filler caps are properly
installed.
2. If the engine case is excessively greasy, apply
degreaser with a paint brush. Do not apply degreaser
to the chain, sprockets, or wheel axles.
3. Rinse the dirt and degreaser off with a garden hose,
Use only enough pressure to do the job.CAUTION:
Excessive hose pressure may cause water seepage and
deterioration of wheel bearings, front fork, brakes,
transmission seals and electrical parts.
Many expensive repair bills have resulted from
improper high pressure detergent applications such as
those available in coin-operated car washers.
4. Once the majority of the dirt has been hosed off, wash
all surfaces with warm water and mild, detergent-type
soap. An old toothbrush or bottle brush is handy for
hard-to-get-at places.
5. Rinse the motorcycle off immediately with clean water
and dry all surfaces with a chamois, clean towel, or
soft absorbent cloth.
6. Dry the chain and lubricate it to prevent rust.
7. Clean the seat with a vinyl upholstery cleaner to keep
the cover pliable and glossy.
8. Automotive-type wax may be applied to all painted and
chrome-plated surfaces. Avoid combination cleaner-
waxes. Many contain abrasives which may mar the paint
or protective finish. When finished, start the engine and
let it idle for several minutes.
CLEANING AND STORAGE

7-2
7-2 B. Storage
Long term storage (30 days or more) of your machine will
require some preventive procedures to guard against
deterioration. After thoroughly cleaning the machine,
prepare for storage as follows:
1. Drain the fuel tank, fuel lines, and carburetor float
bowl(s).
2. Remove the spark plug(s), pour about one tablespoon
of SAE 20W50 motor oil in the spark plug hole(s) and
reinstall the spark plug(s).
Crank the engine over several times (with the
ignition off) to coat the cylinder walls with oil.
3. Remove the drive chain. Clean it thoroughly with
solvent and lubricate it.
Reinstall the chain or store it in a plastic bag
(tied to frame for safe-keeping).
4. Lubricate all control cables.
5. Block up the frame to raise both wheels off the
ground.
6. Tie a plastic bag over the exhaust pipe outlet to
prevent moisture from entering.7. If storing in a humid or salt-air atmosphere, coat
all exposed metal surfaces with a light film of
oil. Do not apply oil to any rubber parts or the
seat cover.
8. Remove the battery and charge it. Store it in a dry place
and recharge it once a month. Do not store the battery
in an excessively warm or cold place (less than 0ºC
(30ºF) or more than 30ºC (90ºF).
NOTE:
Make any necessary repairs before storing the machine.
B. Storage
Long term storage (30 days or more) of your machine will
require some preventive procedures to guard against
deterioration. After thoroughly cleaning the machine,
prepare for storage as follows:
1. Drain the fuel tank, fuel lines, and carburetor float
bowl(s).
2. Remove the spark plug(s), pour about one tablespoon
of SAE 20W50 motor oil in the spark plug hole(s) and
reinstall the spark plug(s).
Crank the engine over several times (with the
ignition off) to coat the cylinder walls with oil.
3. Remove the drive chain. Clean it thoroughly with
solvent and lubricate it.
Reinstall the chain or store it in a plastic bag
(tied to frame for safe-keeping).
4. Lubricate all control cables.
5. Block up the frame to raise both wheels off the
ground.
6. Tie a plastic bag over the exhaust pipe outlet to
prevent moisture from entering.7. If storing in a humid or salt-air atmosphere, coat
all exposed metal surfaces with a light film of
oil. Do not apply oil to any rubber parts or the
seat cover.
8. Remove the battery and charge it. Store it in a dry place
and recharge it once a month. Do not store the battery
in an excessively warm or cold place (less than 0ºC
(30ºF) or more than 30ºC (90ºF).
NOTE:
Make any necessary repairs before storing the machine.

8-1
8-1
SPECIFICATIONS
MODEL
Dimension:
Overall length
Overall width
Overall height
Seat height
Wheet base
Minimum ground clearance
Basic weight:
With oil and without fuel:
Minimum turning radius:
Engine:
Type
Cylinder arrangement
Displacement
Bore x Stroke
Compression rate
Starting system
Lubrification system
103 Kg (227 lb)
113 Kg (249 lb) 2.090 mm (82.3 in)
810 mm (31.9 in)
1.125 mm (44.3 in)
840 mm (33.1 in)
1.340 mm (52.7 in)
265 mm (10.4 in)
2.100 mm (82.7 in)
XTZ 125K
Air cooled, 4-stroke
gasoline, SOHC
Single cylinder
123.7 cm
3
54 x 54 mm (2.13 x 2.13 in)
10.0 : 1
Kick starter
Wet sump
104 Kg (229 lb)
114 Kg (251 lb) 2.090 mm (82.3 in)
810 mm (31.9 in)
1.125 mm (44.3 in)
840 mm (33.1 in)
1.340 mm (52.7 in)
265 mm (10.4 in)
2.100 mm (82.7 in)
XTZ 125E
Air cooled, 4-stroke
gasoline, SOHC
Single cylinder
123.7 cm
3
54 x 54 mm (2.13 x 2.13 in)
10.0 : 1
Electric starter
Wet sump
SPECIFICATIONS
MODEL
Dimension:
Overall length
Overall width
Overall height
Seat height
Wheet base
Minimum ground clearance
Basic weight:
With oil and without fuel:
Minimum turning radius:
Engine:
Type
Cylinder arrangement
Displacement
Bore x Stroke
Compression rate
Starting system
Lubrification system
103 Kg (227 lb)
113 Kg (249 lb) 2.090 mm (82.3 in)
810 mm (31.9 in)
1.125 mm (44.3 in)
840 mm (33.1 in)
1.340 mm (52.7 in)
265 mm (10.4 in)
2.100 mm (82.7 in)
XTZ 125K
Air cooled, 4-stroke
gasoline, SOHC
Single cylinder
123.7 cm
3
54 x 54 mm (2.13 x 2.13 in)
10.0 : 1
Kick starter
Wet sump
104 Kg (229 lb)
114 Kg (251 lb) 2.090 mm (82.3 in)
810 mm (31.9 in)
1.125 mm (44.3 in)
840 mm (33.1 in)
1.340 mm (52.7 in)
265 mm (10.4 in)
2.100 mm (82.7 in)
XTZ 125E
Air cooled, 4-stroke
gasoline, SOHC
Single cylinder
123.7 cm
3
54 x 54 mm (2.13 x 2.13 in)
10.0 : 1
Electric starter
Wet sump

8-2
8-2
MODEL XTZ 125E and XTZ 125K
Engine oil:
Air filter:
Fuel:
Type
Tank capacity
Reserve amount
Carburetor:
Type / manufacturer
Spark plug:
Type / manufacturer
Gap
Clutch type: Capacity:
Periódic oil change
Total amount
TypeYAMALUBE 4 or SAE 20W50 type SH
Wet type element
CR7HSA / NGK or U22FSR-U / DENSO
0.7 mm (0.028 in)
Wet, multi-disc Regular unleaded gasoline
10,6
l ( 2.33 Imp gal, 2.80 US gal)
1,0
l ( 0.220 Imp gal, 0.264 US gal) 1,0
l ( 0,220 Imp gal, 0.264 US gal)
1,2 l ( 0,264 Imp gal, 0.317 US gal)
VM 20SS / Mikuni
MODELXTZ 125E and XTZ 125K
Engine oil:
Air filter:
Fuel:
Type
Tank capacity
Reserve amount
Carburetor:
Type / manufacturer
Spark plug:
Type / manufacturer
Gap
Clutch type: Capacity:
Periódic oil change
Total amount
TypeYAMALUBE 4 or SAE 20W50 type SH
Wet type element
CR7HSA / NGK or U22FSR-U / DENSO
0.7 mm (0.028 in)
Wet, multi-disc Regular unleaded gasoline
10,6
l ( 2.33 Imp gal, 2.80 US gal)
1,0 l ( 0.220 Imp gal, 0.264 US gal) 1,0
l ( 0,220 Imp gal, 0.264 US gal)
1,2 l ( 0,264 Imp gal, 0.317 US gal)
VM 20SS / Mikuni

8-3
8-3
MODEL XTZ 125E and XTZ 125K
Transmission:
Primary reducion system
Primary reduction rate
Secondary reduction system
Secondary reduction rate
Transmission type
Operatíon
Gear ratio 1st
2nd
3rd
4th
5th
Chassis:
Frame type
Caster angle
Trail
Tire:
Type
Size:
Front
Rear
Spur gear
68 / 20
Chain drive
48 / 14
Constant mesh 5-speed
Left foot operation
37 / 14
32 / 18
25 / 19
23 / 22
21 / 24
Diamond
26° 20’
106 mm (4,2 in)
With tube
80 / 90-21 48T
110 / 80-18 58T
MODELXTZ 125E and XTZ 125K
Transmission:
Primary reducion system
Primary reduction rate
Secondary reduction system
Secondary reduction rate
Transmission type
Operatíon
Gear ratio 1st
2nd
3rd
4th
5th
Chassis:
Frame type
Caster angle
Trail
Tire:
Type
Size:
Front
Rear
Spur gear
68 / 20
Chain drive
48 / 14
Constant mesh 5-speed
Left foot operation
37 / 14
32 / 18
25 / 19
23 / 22
21 / 24
Diamond
26° 20’
106 mm (4,2 in)
With tube
80 / 90-21 48T
110 / 80-18 58T

8-4
8-4
MODEL
Brakes:
Front brake type
Operation
Rear brake type
Operation
Shock absorber:
Front
Rear
Wheel travel
Front
Rear Suspension:
Front
Rear
Electrical:
Ignition system
Generator system
Battery type / capacity
XTZ 125E and XTZ 125K
Coil spring, Oil damper
Gas, Coil spring. Oil damper
180 mm (7.1 in)
180 mm (7.1 in) Telescopic fork
Swingarm (New monocross suspension)
C.D.I.
AC Magneto generator
YB5L-B/ 12V 5.0 Ah
Single, Disc brake
Right hand operation
Drum brake
Right foot operation
MODEL
Brakes:
Front brake type
Operation
Rear brake type
Operation
Shock absorber:
Front
Rear
Wheel travel
Front
Rear Suspension:
Front
Rear
Electrical:
Ignition system
Generator system
Battery type / capacity
XTZ 125E
Coil spring, Oil damper
Gas, Coil spring. Oil damper
180 mm (7.1 in)
180 mm (7.1 in) Telescopic fork
Swingarm (New monocross suspension)
C.D.I.
AC Magneto generator
YB5L-B/ 12V 5.0 Ah
Single, Disc brake
Right hand operation
Drum brake
Right foot operation

8-5
8-5
MODEL
Bulb wattage x quantity
Headlight
tail / Brake light
Flasher light
Indicator light wattage x quantity:
Panel
Neutral tamp
Headlight
Flasher light
Headlight type:XTZ 125E and XTZ 125K
12V 35W/35W (1 Pc)
12V 5W/21W (1 Pc)
12V 10W (4 Pc)
12V x 3,4W (1 Pc)
12V x 1,7W (1 Pc)
12V x 1,7W (1 Pc)
12V x 1,7W (1 Pc)
Halogen bulb
MODEL
Bulb wattage x quantity
Headlight
tail / Brake light
Flasher light
Indicator light wattage x quantity:
Panel
Neutral tamp
Headlight
Flasher light
Headlight type:XTZ 125E
12V 35W/35W (1 Pc)
12V 5W/21W (1 Pc)
12V 10W (4 Pc)
12V x 3,4W (1 Pc)
12V x 1,7W (1 Pc)
12V x 1,7W (1 Pc)
12V x 1,7W (1 Pc)
Halogen bulb