2004 YAMAHA XVS125 air filter

TABLE OF CONTENTS
SAFETY INFORMATION ............. 1-1
DESCRIPTION ............................. 2-1
Left view ..................................... 2-1
Right view................................... 2-2
Controls and instruments ........... 2-3
INSTRUMENT AND CONTROL
FUNCTIONS ................................ 3-1
Main switch/steering lock .......... 3-1
Indicator and warning lights ...... 3-2
Speedometer unit ...................... 3-2
Anti-theft alarm (optional) .......... 3-3
Handlebar switches ................... 3-3
Clutch lever ............................... 3-4
Shift pedal ................................. 3-5
Brake lever ................................ 3-5
Brake pedal ............................... 3-5
Fuel tank cap ............................. 3-6
Fuel ........................................... 3-6
Fuel cock ................................... 3-7
Starter (choke) lever “
1
” .......... 3-8
Helmet holder ............................ 3-9
Adjusting the shock absorber
assemblies .............................. 3-9
Sidestand ................................ 3-10
Ignition circuit cut-off system ... 3-10PRE-OPERATION CHECKS ........ 4-1
Pre-operation check list ............. 4-2
OPERATION AND IMPORTANT
RIDING POINTS .......................... 5-1
Starting a cold engine ............... 5-1
Starting a warm engine ............. 5-2
Shifting ...................................... 5-2
Tips for reducing fuel
consumption ............................ 5-3
Engine break-in ......................... 5-4
Parking ...................................... 5-4
PERIODIC MAINTENANCE AND
MINOR REPAIR ........................... 6-1
Owner’s tool kit ......................... 6-1
Periodic maintenance and
lubrication chart ....................... 6-2
Removing and installing
panels ..................................... 6-5
Checking the spark plugs .......... 6-6
Engine oil and oil filter
element ................................... 6-8
Cleaning the air filter
element ................................. 6-10
Adjusting the carburetor .......... 6-11
Adjusting the engine idling
speed .................................... 6-12Adjusting the throttle cable free
play ....................................... 6-12
Adjusting the valve
clearance .............................. 6-13
Tires ........................................ 6-13
Spoke wheels .......................... 6-15
Adjusting the clutch lever free
play ....................................... 6-16
Adjusting the brake lever free
play ....................................... 6-17
Adjusting the brake pedal
position and free play ............ 6-17
Adjusting the rear brake light
switch .................................... 6-19
Checking the front brake pads
and rear brake shoes ............ 6-19
Checking the brake fluid
level ....................................... 6-20
Changing the brake fluid ......... 6-21
Drive chain slack ..................... 6-21
Lubricating the drive chain ...... 6-23
Checking and lubricating the
cables .................................... 6-23
Checking and lubricating the
throttle grip and cable ........... 6-24
Checking and lubricating the
brake and shift pedals ........... 6-24

PERIODIC MAINTENANCE AND MINOR REPAIR
6-4
1
2
3
4
5
6
7
8
9

EAU18660
NOTE:


The air filter needs more frequent service if you are riding in unusually wet or dusty areas.

Hydraulic brake service

Regularly check and, if necessary, correct the brake fluid level.

Every two years replace the internal components of the brake master cylinder and caliper, and change the brake fluid.

Replace the brake hoses every four years and if cracked or damaged.
24

Moving parts and cables

Lubricate.
√

√

√

√

√


25

*
Lights, signals and
switches

Check operation.

Adjust headlight beam.
√

√

√

√

√

√

NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (
×
1,000 km)
ANNUAL
CHECK
1 6 12 18 24

PERIODIC MAINTENANCE AND MINOR REPAIR
6-8
1
2
3
4
5
6
7
8
9

EAU19751
Engine oil and oil filter
element
The engine oil level should be checked
before each ride. In addition, the oil
must be changed and the oil filter ele-
ment replaced at the intervals specified
in the periodic maintenance and lubri-
cation chart.
To check the engine oil level
1. Place the vehicle on a level sur-
face and hold it in an upright posi-
tion.
NOTE:

Make sure that the vehicle is positioned
straight up when checking the oil level.
A slight tilt to the side can result in a
false reading.
2. Start the engine, warm it up for
several minutes, and then turn it
off.
3. Wait a few minutes until the oil set-
tles, and then check the oil level
through the check window located
at the bottom-right side of the
crankcase.
NOTE:

The engine oil should be between the
minimum and maximum level marks.
4. If the engine oil is below the mini-
mum level mark, add sufficient oil
of the recommended type to raise
it to the correct level.
To change the engine oil (with or
without oil filter element replace-
ment)
1. Start the engine, warm it up for
several minutes, and then turn it
off.
2. Place an oil pan under the engineto collect the used oil.
3. Remove the engine oil filler cap
and drain bolt to drain the oil from
the crankcase.
NOTE:

Skip steps 4–6 if the oil filter element is
1. Engine oil level check window
2. Maximum level mark
3. Minimum level mark
2
1
3

1. Engine oil filler cap
1. Engine oil drain bolt
11

PERIODIC MAINTENANCE AND MINOR REPAIR
6-9
2
3
4
5
67
8
9

not being replaced.
4. Remove the oil filter element cover
by removing the bolts.
5. Remove and replace the oil filter
element and O-ring.6. Install the oil filter element cover by
installing the bolts, then tightening
them to the specified torque.
NOTE:

Make sure that the O-ring is properly
seated.
7. Install the engine oil drain bolt, and
then tighten it to the specified
torque.
8. Add the specified amount of the
recommended engine oil, and then
install and tighten the oil filler cap.
CAUTION:

ECA11620

In order to prevent clutch slip-
page (since the engine oil also
lubricates the clutch), do not
mix any chemical additives. Do
not use oils with a diesel speci-
fication of “CD” or oils of a high-
er quality than specified. In
addition, do not use oils labeled
“ENERGY CONSERVING II” or
higher.

Make sure that no foreign mate-
rial enters the crankcase.
9. Start the engine, and then let it idle
1. Bolt
1. Oil filter element
2. O-ring
1(×3)
2
1

Tightening torque:
Oil filter element cover bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Tightening torque:
Engine oil drain bolt:
34 Nm (3.4 m·kgf, 24.5 ft·lbf)
Recommended engine oil:
See page 8-1.
Oil quantity:
With oil filter element replace-
ment:
1.60 L (1.69 US qt)
(1.41 Imp.qt)
Without oil filter element re-
placement:
1.40 L (1.48 US qt)
(1.23 Imp.qt)

PERIODIC MAINTENANCE AND MINOR REPAIR
6-10
1
2
3
4
5
6
7
8
9
for several minutes while checking
it for oil leakage. If oil is leaking, im-
mediately turn the engine off and
check for the cause.
10. Turn the engine off, and then
check the oil level and correct it if
necessary.

EAU32401
Cleaning the air filter element
The air filter element should be cleaned
at the intervals specified in the periodic
maintenance and lubrication chart.
Clean the air filter element more fre-
quently if you are riding in unusually
wet or dusty areas.
1. Remove the air filter case by re-
moving the bolts and loosening the
clamp screw.
2. Remove the air filter case cover by
removing the screws.3. Remove the air filter element by
removing the screws.
4. Lightly tap the air filter element to
remove most of the dust and dirt,
and then blow the remaining dirt
1. Bolt
2. Clamp screw
1
2

1. Screw
1. Air filter element
2. Screw
1
1
1
2(×2)

PERIODIC MAINTENANCE AND MINOR REPAIR
6-11
2
3
4
5
67
8
9
out with compressed air as shown.
If the air filter element is damaged,
replace it.
5. Install the air filter element by in-
serting it into the air filter case,
then installing the screws.
CAUTION:

ECA10480

Make sure that the air filter ele-
ment is properly seated in the
air filter case.

The engine should never be op-
erated without the air filter ele-
ment installed, otherwise the
piston(s) and/or cylinder(s) may
become excessively worn.
6. Install the air filter case cover by in-stalling the screws.
7. Install the air filter case by install-
ing the bolts, then tightening the
clamp screw.
EAU21280
Adjusting the carburetor
The carburetor is an important part of
the engine and requires very sophisti-
cated adjustment. Therefore, most car-
buretor adjustments should be left to a
Yamaha dealer, who has the neces-
sary professional knowledge and expe-
rience. The adjustment described in the
following section, however, may be ser-
viced by the owner as part of routine
maintenance.
CAUTION:

ECA10550
The carburetor has been set and ex-
tensively tested at the Yamaha fac-
tory. Changing these settings
without sufficient technical knowl-
edge may result in poor perfor-
mance of or damage to the engine.

8-1
1
2
3
4
5
6
7
8
9

SPECIFICATIONS
EAU26333
Dimensions:
Overall length:
2320 mm (91.3 in)
Overall width:
910 mm (35.8 in)
Overall height:
1075 mm (42.3 in)
Seat height:
670 mm (26.4 in)
Wheelbase:
1530 mm (60.2 in)
Ground clearance:
150 mm (5.91 in)
Minimum turning radius:
2900 mm (114.2 in)
Weight:
With oil and fuel:
156.0 kg (344 lb)
Engine:
Engine type:
Air cooled 4-stroke, SOHC
Cylinder arrangement:
V-type 2-cylinder
Displacement:
124.0 cm
3

(7.57 cu.in)
Bore
×
stroke:
41.0
×
47.0 mm (1.61
×
1.85 in)
Compression ratio:
11.00 :1
Starting system:
Electric starter
Lubrication system:
Wet sump

Engine oil:
Type:
SAE10W30 or SAE10W40 or SAE15W40
or SAE20W40 or SAE20W50
Recommended engine oil grade:
API service SE, SF, SG type or higher
Engine oil quantity:
Without oil filter element replacement:
1.40 L (1.48 US qt) (1.23 Imp.qt)
With oil filter element replacement:
1.60 L (1.69 US qt) (1.41 Imp.qt)
Air filter:
Air filter element:
Dry element
Fuel:
Recommended fuel:
Regular unleaded gasoline only
Fuel tank capacity:
11.0 L (2.91 US gal) (2.42 Imp.gal)
Fuel reserve amount:
3.4 L (0.90 US gal) (0.75 Imp.gal)
Carburetor:
Manufacturer:
MIKUNI
Type x quantity:
BDS26 x 1
Spark plug(s):
Manufacturer/model:
NGK/CR7HSA
Manufacturer/model:
DENSO/U22FSR-U
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)
Clutch:
Clutch type:
Wet, multiple-disc
Transmission:
Primary reduction system:
Spur gear
Primary reduction ratio:
85/25 (3.400)
Secondary reduction system:
Chain drive
Secondary reduction ratio:
59/16 (3.688)
Transmission type:
Constant mesh 5-speed
Operation:
Left foot operation
Gear ratio:
1st:
37/14 (2.643)
2nd:
32/19 (1.684)
-20 -10 0
10 20 30
40
50 ˚C
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40