2004 YAMAHA XVS125 fuel

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

SAFETY INFORMATION
1-4
1
not recommended.

Use caution when adding electri-
cal accessories. If electrical acces-
sories exceed the capacity of the
motorcycle’s electrical system, an
electric failure could result, which
could cause a dangerous loss of
lights or engine power.
Gasoline and exhaust gas

GASOLINE IS HIGHLY FLAMMA-
BLE:

Always turn the engine off when
refueling.

Take care not to spill any gaso-
line on the engine or exhaust
system when refueling.

Never refuel while smoking or in
the vicinity of an open flame.

Never start the engine or let it run
for any length of time in a closed
area. The exhaust fumes are poi-
sonous and may cause loss of
consciousness and death within a
short time. Always operate your
motorcycle in an area that has ad-
equate ventilation.

Always turn the engine off before
leaving the motorcycle unattended
and remove the key from the main
switch. When parking the motorcy-
cle, note the following:

The engine and exhaust system
may be hot, therefore, park the
motorcycle in a place where pe-
destrians or children are not like-
ly to touch these hot areas.

Do not park the motorcycle on a
slope or soft ground, otherwise it
may fall over.

Do not park the motorcycle near
a flammable source (e.g. a kero-
sene heater, or near an open
flame), otherwise it could catch
fire.

When transporting the motorcycle
in another vehicle, make sure that
it is kept upright and that the fuel
cock is turned to “ON” or “RES”
(for vacuum type) / “OFF” (for
manual type). If it should lean over,
gasoline may leak out of the carbu-
retor or fuel tank.

If you should swallow any gaso-
line, inhale a lot of gasoline vapor,
or allow gasoline to get into your
eyes, see your doctor immediate-
ly. If any gasoline spills on your
skin or clothing, immediately wash
the affected area with soap and
water and change your clothes.

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

DESCRIPTION
EAU10410
Left view
1234
5
6

1. Headlight (page 6-29)
2. Fuel cock (page 3-7)
3. Fuses (page 6-28)
4. Helmet holder (page 3-9)
5. Shock absorber assembly spring preload adjusting ring (page 3-9)
6. Shift pedal (page 3-5)

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

EAU10430
Controls and instruments
123
45
6 7
8

1. Clutch lever (page 3-4)
2. Left handlebar switches (page 3-3)
3. Speedometer unit (page 3-2)
4. Right handlebar switches (page 3-3)
5. Brake lever (page 3-5)
6. Throttle grip (page 6-12)
7. Fuel tank cap (page 3-6)
8. Starter (choke) lever (page 3-8)

INSTRUMENT AND CONTROL FUNCTIONS
3-2
1
2
3
4
5
6
7
8
9

EAU11001
Indicator and warning lights
EAU11020
Turn signal indicator light “”
This indicator light flashes when the
turn signal switch is pushed to the left or
right.
EAU11060
Neutral indicator light “”
This indicator light comes on when the
transmission is in the neutral position.
EAU11080
High beam indicator light “”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU11490
Engine trouble warning light “”
This warning light comes on or flashes
when an electrical circuit monitoring the
engine is defective. When this occurs,
have a Yamaha dealer check the
self-diagnosis system.
NOTE:

This warning light comes on for a few
seconds when the key is turned to
“ON”, but this does not indicate a mal-
function.
EAU11640
Speedometer unit
The speedometer unit is equipped with
a speedometer, an odometer and a
tripmeter. The speedometer shows
riding speed. The odometer shows the
total distance traveled. The tripmeter
shows the distance traveled since it
was last set to zero with the reset knob.
The tripmeter can be used to estimate
the distance that can be traveled with a
full tank of fuel. This information will en-
able you to plan future fuel stops.
1. High beam indicator light “”
2. Turn signal indicator light “”
3. Neutral indicator light “”
4. Engine trouble warning light “”
12 34
km/h

1. Speedometer
2. Odometer
3. Tripmeter
4. Reset knob
2040600
km/h80
100
120140160
1
23
4

INSTRUMENT AND CONTROL FUNCTIONS
3-6
1
2
3
4
5
6
7
8
9

EAU13000
Fuel tank cap
To remove the fuel tank cap
Insert the key into the lock and turn it 1/
4 turn clockwise. The lock will be re-
leased and the fuel tank cap can be re-
moved.
To install the fuel tank cap
1. Push the fuel tank cap into position
with the key inserted in the lock.
2. Turn the key counterclockwise to
the original position, and then re-
move it.
NOTE:

The fuel tank cap cannot be installed
unless the key is in the lock. In addition,
the key cannot be removed if the cap is
not properly installed and locked.
WARNING

EWA11140
Make sure that the fuel tank cap is
properly installed before riding.
EAU13210
Fuel
Make sure that there is sufficient fuel in
the tank. Fill the fuel tank to the bottom
of the filler tube as shown.
WARNING

EWA10880

Do not overfill the fuel tank, oth-
erwise it may overflow when the
fuel warms up and expands.

Avoid spilling fuel on the hot en-
gine.
CAUTION:

ECA10070
Immediately wipe off spilled fuel
with a clean, dry, soft cloth, since
1. Unlock.
1

1. Fuel tank filler tube
2. Fuel level
1
2

INSTRUMENT AND CONTROL FUNCTIONS
3-7
2
34
5
6
7
8
9 fuel may deteriorate painted surfac-

es or plastic parts.
EAU13320
CAUTION:

ECA11400
Use only unleaded gasoline. The use
of leaded gasoline will cause severe
damage to internal engine parts,
such as the valves and piston rings,
as well as to the exhaust system.
Your Yamaha engine has been de-
signed to use regular unleaded gaso-
line with a research octane number of
91 or higher. If knocking (or pinging) oc-
curs, use a gasoline of a different brand
or premium unleaded fuel. Use of un-leaded fuel will extend spark plug life
and reduce maintenance costs.
EAU13580
Fuel cock
This model is equipped with a negative
pressure fuel cock. The fuel cock sup-
plies fuel from the tank to the carburetor
while also filtering it.
The fuel cock lever positions are ex-
plained as follows and shown in the il-
lustrations.
ON
With the fuel cock lever in this position,
fuel flows to the carburetor when the
engine is running. Turn the fuel cock le-
ver to this position when starting the en-
gine and riding. 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)
1. Arrow mark positioned over “ON”
1

INSTRUMENT AND CONTROL FUNCTIONS
3-8
1
2
3
4
5
6
7
8
9RES
This indicates reserve. With the fuel
cock lever in this position, the fuel re-
serve is made available. Quickly turn
the fuel cock lever to this position if you
run out of fuel while riding, otherwise
the engine may stall and will have to be
primed (see “PRI”). After turning the
fuel cock lever to “RES”, refuel as soon
as possible and be sure to turn the fuel
cock lever back to “ON”!
PRI
This indicates prime. With the fuel cock
lever in this position, the engine can be
“primed”. Turn the fuel cock lever to this
position when the engine has been al-
lowed to run out of fuel. This sends fuel
directly to the carburetor, which will
make starting easier. After the engine
has started, be sure to turn the lever to
“ON” (or “RES” if you have not refueled
yet).

EAU13590
Starter (choke) lever “”
Starting a cold engine requires a richer
air-fuel mixture, which is supplied by
the starter (choke).
Move the lever in direction (a) to turn on
the starter (choke).
Move the lever in direction (b) to turn off
the starter (choke).
1. Arrow mark positioned over “RES”
1

1. Arrow mark positioned over “PRI”
1

1. Starter (choke) lever “”
1
(a)
(b)