2002 YAMAHA XVS125 engine

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TABLE OF CONTENTS
GIVE SAFETY THE RIGHT OF WAY ................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 ......................................................3-5
Shift pedal ........................................................3-5
Brake lever .......................................................3-5
Brake pedal ......................................................3-6
Fuel tank cap ...................................................3-6
Fuel ..................................................................3-7
Fuel cock .........................................................3-8
Starter (choke) lever ........................................3-9
Helmet holder ..................................................3-9
Adjusting the shock absorber assemblies .......3-9
Sidestand .......................................................3-10
Ignition circuit cut-off system ........................3-11PRE-OPERATION CHECKS .............................4-1
Pre-operation check list ...................................4-1
OPERATION AND IMPORTANT RIDING
POINTS ..............................................................5-1
Starting the engine ...........................................5-1
Starting a warm engine ....................................5-2
Shifting .............................................................5-3
Recommended shift points
(for Switzerland only) .....................................5-3
Tips for reducing fuel consumption .................5-4
Engine break-in ................................................5-4
Parking .............................................................5-5
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 ................................6-7
Engine oil and oil filter element .......................6-9
Cleaning the air filter element .......................6-12
Adjusting the carburetor .................................6-14
Adjusting the engine idling speed ..................6-14
Adjusting the throttle cable free play ..............6-15
Adjusting the valve clearance .......................6-15
123
456
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2-2
DESCRIPTION
2
7. Owner’s tool kit (page 6-1)
8. Battery (page 6-31)
9. Air filter element (page 6-12)
10. Main switch/steering lock (page 3-1)11. Brake pedal (page 3-6, 6-20)
12. Engine oil filter element (page 6-9)
78 9
10
11
12
Right view
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3-1
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INSTRUMENT AND CONTROL FUNCTIONS
3
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Main switch/steering lock
Main switch/steering lock
The main switch/steering lock con-
trols the ignition and lighting systems,
and is used to lock the steering. The
various positions are described
below.
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ON
All electrical systems are supplied
with power, and the engine can be
started. The key cannot be removed.
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OFF
All electrical systems are off. The key
can be removed.
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LOCK
The steering is locked, and all electri-
cal systems are off. The key can be
removed.
To lock the steering1. Turn the handlebars all the way
to the left.
2. Push the key in from the “OFF”
position, and then turn it to
“LOCK” while still pushing it.
3. Remove the key.
To unlock the steeringPush the key in, and then turn it to
“OFF” while still pushing it.
EW000016
wNever turn the key to “OFF” or
“LOCK” while the motorcycle is
moving, otherwise the electrical
systems will be switched off,
which may result in loss of control
or an accident. Make sure that the
motorcycle is stopped before turn-
ing the key to “OFF” or “LOCK”.
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.
.
(Parking)
The steering is locked, and the tail-
light and auxiliary light are on, but all
other electrical systems are off. The
key can be removed.
The steering must be locked before
the key can be turned to "
.
".
ECA00043
cCDo not use the parking position for
an extended length of time, other-
wise the battery may discharge.
OFFON
LOCKPPUSH
IGNITION
ON
OFF
LOCK
(Parking)
.
ab
a. Push.
b. Turn.
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3-2
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Indicator and warning lights
Indicator lights
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High beam indicator light “&”
High beam indicator light
This indicator light comes on when
the high beam of the headlight is
switched on.
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Turn signal indicator light “5”
Turn signal indicator light
This indicator light flashes when the
turn signal switch is pushed to the left
or right.
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Neutral indicator light “N”
Neutral indicator light
This indicator light comes on when
the transmission is in the neutral
position.
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Engine trouble warning light “”
Engine trouble warning light
This warning light comes on or flash-
es when an electrical circuit monitor-
ing 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
malfunction.
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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 enable you
to plan future fuel stops.
INSTRUMENT AND CONTROL FUNCTIONS
3
2040
600
km/h80
100
120140160
12 34
2040600
km/h80
100
120140160
1
23
4
1. High beam indicator light “&”
2. Turn signal indicator light “5”
3. Neutral indicator light “N”
4. Engine trouble warning light “”
1. Speedometer
2. Odometer
3. Tripmeter
4. Reset knob
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3-4
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Turn signal switch “4/6”
Turn signal switch
To signal a right-hand turn, push this
switch to “6”. To signal a left-hand
turn, push this switch to “4”. When
released, the switch returns to the
center position. To cancel the turn
signal lights, push the switch in after
it has returned to the center position.
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Horn switch “*”
Horn switch
Press this switch to sound the horn.
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Engine stop switch “#/$”
Engine stop switch
Set this switch to “#” before starting
the engine. Set this switch to “$” to
stop the engine in case of an emer-
gency, such as when the motorcycle
overturns or when the throttle cable is
stuck.
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Light switch “9/
'
/:”
Light switch
Set this switch to “
'
” to turn on
the auxiliary light, meter lighting and
taillight. Set the switch to “:” to turn
on the headlight also. Set the switch
to “9” to turn off all the lights.
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Start switch “,”
Start switch
Push this switch to crank the engine
with the starter.
EC000005
cCSee page 5-1 for starting instruc-
tions prior to starting the engine.
INSTRUMENT AND CONTROL FUNCTIONS
3
1
2
3
4
1
2
3
1. Pass switch“&”
2. Dimmer switch“&/%”
3. Turn signal switch“4/6”
4. Horn switch “*”1. Engine stop switch“#/$”
2. Light switch“9/
'
/:”
3. Start switch “,”
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3-5
INSTRUMENT AND CONTROL FUNCTIONS
3
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Clutch lever
Clutch lever
The clutch lever is located at the left
handlebar grip. To disengage the
clutch, pull the lever toward the han-
dlebar grip. To engage the clutch,
release the lever. The lever should
be pulled rapidly and released slowly
for smooth clutch operation.
The clutch lever is equipped with a
clutch switch, which is part of the igni-
tion circuit cut-off system. (See page
3-11 for an explanation of the ignition
circuit cut-off system.)
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Shift pedal
Shift pedal
The shift pedal is located on the left
side of the engine and is used in
combination with the clutch lever
when shifting the gears of the
5-speed constant-mesh transmission
equipped on this motorcycle.
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Brake lever
Brake lever
The brake lever is located at the right
handlebar grip. To apply the front
brake, pull the lever toward the han-
dlebar grip.
1
1
1
1. Clutch lever 1. Shift pedal 1. Brake lever
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3-7
INSTRUMENT AND CONTROL FUNCTIONS
3
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Fuel
Fuel
Make sure that there is sufficient fuel
in the tank. Fill the fuel tank to the
bottom of the filler tube as shown.
EW000130
w8Do not overfill the fuel tank,
otherwise it may overflow
when the fuel warms up and
expands.
8Avoid spilling fuel on the hot
engine.
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cCImmediately wipe off spilled fuel
with a clean, dry, soft cloth, since
fuel may deteriorate painted sur-
faces or plastic parts.
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ECA00104
cCUse only unleaded gasoline. The
use of leaded gasoline will cause
severe damage to internal engine
parts, such as the valves and pis-
ton rings, as well as to the exhaust
system.
Your Yamaha engine has been
designed to use regular unleaded
gasoline with a research octane num-
ber of 91 or higher. If knocking (or
pinging) occurs, use a gasoline of a
different brand or premium unleaded
fuel. Use of unleaded fuel will extend
spark plug life and reduce mainte-
nance costs.
1
2
1. Filler tube
2. Fuel level
Recommended fuel:
REGULAR UNLEADED
GASOLINE ONLY
Fuel tank capacity:
Total amount:
11 L
Reserve amount:
3.4 L
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3-8
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Fuel cock
Fuel cock
This motorcycle is equipped with a
negative pressure fuel cock. The fuel
cock supplies fuel from the tank to
the carburetors while also filtering it.
The fuel cock lever positions are
explained as follows and shown in
the illustrations.
ON
With the fuel cock lever in this posi-
tion, fuel flows to the carburetor when
the engine is running. Turn the fuel
cock lever to this position when start-
ing the engine and riding.RES
This indicates reserve. With the fuel
cock lever in this position, the fuel
reserve is made available. Quickly
turn the fuel cock lever to this posi-
tion 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 allowed to run out of fuel.
This sends fuel directly to the carbu-
retor, 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).INSTRUMENT AND CONTROL FUNCTIONS
3
1
1
1. Arrow mark positioned over “RES”1. Arrow mark positioned over “PRI”
1
1. Arrow mark positioned over “ON”ON: normal
position
RES: reserve position
PRI: priming position
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