engine YAMAHA XV125S 2000 Owners Manual

EAU00009
TABLE OF CONTENTS
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3
4
5
6
7
8
9 GIVE SAFETY THE RIGHT OF WAY ..................1-1
DESCRIPTION .....................................................2-1
Left view............................................................2-1
Right view .........................................................2-2
Controls/Instruments .......................................2-3
INSTRUMENT AND CONTROL
FUNCTIONS ........................................................3-1
Main switch ......................................................3-1
Indicator lights..................................................3-1
Speedometer ....................................................3-2
Handlebar switches..........................................3-2
Clutch lever .......................................................3-4
Shift pedal.........................................................3-4
Front brake lever ..............................................3-4
Rear brake pedal ..............................................3-5
Fuel tank cap.....................................................3-5
Fuel ....................................................................3-6
Fuel cock ...........................................................3-7
Starter (choke) “1” .........................................3-8
Steering lock .....................................................3-8
Seat ...................................................................3-9
Helmet holder ...................................................3-9
Rear shock absorber adjustment ..................3-10
Sidestand ........................................................3-10Sidestand/clutch switch operation check .....3-11
PRE-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 ...................................5-3
Shifting..............................................................5-4
Recommended shift point
(for Switzerland only) ......................................5-4
Tips for reducing fuel consumption ...............5-5
Engine break-in ................................................5-5
Parking ..............................................................5-6
PERIODIC MAINTENANCE AND MINOR
REPAIR ................................................................6-1
Tool kit ..............................................................6-1
Periodic maintenance and lubrication............6-3
Panel removal and installation .......................6-6
Panel A ..............................................................6-6
Panel B ..............................................................6-7
Spark plugs .......................................................6-8
Engine oil ..........................................................6-9
Air filter ...........................................................6-12
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EAU00027
INSTRUMENT AND CONTROL FUNCTIONS
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3
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9
3-1
EAU00028Main switch
The main switch controls the igni-
tion and lighting systems. Its oper-
ation is described below.
EAU00036ON
Electrical circuits are switched on.
The engine can be started. The key
cannot be removed in this position.
EAU00038OFF
All electrical circuits are switched
off. The key can be removed in this
position.
EAU00054P (Parking)
The taillight and auxiliary light
come on but all other circuits are
off. With the key at “OFF”, push it
into the main switch, turn it coun-
terclockwise to “P”, and remove it.
To cancel the parking, turn the key
clockwise.
EAU00056Indicator lightsEAU00063High beam indicator light “&”
This indicator comes on when the
headlight high beam is used.
EAU00061Neutral indicator light “N”
This indicator comes on when the
transmission is in neutral.
EAU00057Turn indicator light “5”
This indicator flashes when the
turn switch is moved to the left or
right.
1. High beam indicator light “&”
2. Neutral indicator light “N”
3. Turn indicator light “5”
ONOFF
P
3 2 1
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INSTRUMENT AND CONTROL FUNCTIONS
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9
3-3
EAU00127Turn signal switch
To signal a right-hand turn, push
the switch to “6”. To signal a left-
hand turn, push the switch to
“4”. Once the switch is released
it will return to the center position.
To cancel the signal, push the
switch in after it has returned to
the center position.
EAU00129
Horn switch “*”
Press the switch to sound the horn.
1
2
3
EAU00134Lights switch
Turning the light switch to “
'”,
turns on the auxiliary light, meter
lights and taillight. Turning the
light switch to “:” turns the head-
light on also.
1. Engine stop switch
2. Lights switch
3. Start switch “$”
EAU00138Engine stop switch
The engine stop switch is a safety
device for use in an emergency
such as when the motorcycle over-
turns or if trouble occurs in the
throttle system. Turn the switch to
“#” to start the engine.
In case of emergency, turn the
switch to “$” to stop the engine.
EAU00143
Start switch “,“
The starter motor cranks the
engine when pushing the start
switch.
EC000005
cC
See starting instructions prior to
starting the engine.
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3-4
INSTRUMENT AND CONTROL FUNCTIONS
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2
3
4
5
6
7
8
9
EAU00152Clutch lever
The clutch lever is located on the
left handlebar, and the ignition cir-
cuit cut-off system is incorporated
in the clutch lever holder. Pull the
clutch lever to the handlebar to dis-
engage the clutch, and release the
lever to engage the clutch. The
lever should be pulled rapidly and
released slowly for smooth clutch
operation. (Refer to the engine
starting procedures for a descrip-
tion of the ignition circuit cut-off
system.)
EAU00157Shift pedal
This motorcycle is equipped with a
constant-mesh 5-speed transmis-
sion.
The shift pedal is located on the
left side of the engine and is used
in combination with the clutch
when shifting.
N. Neutral
1. Shift pedal
EAU00158Front brake lever
The front brake lever is located on
the right handlebar. Pull it toward
the handlebar to apply the front
brake.
5
4
3
2
1 N
1
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3-6
INSTRUMENT AND CONTROL FUNCTIONS
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3
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9
EAU01183Fuel
Make sure there is sufficient fuel in
the tank. Fill the fuel tank to the
bottom of the filler tube as shown
in the illustration.
EW000130
w
Do not overfill the fuel tank. Avoid
spilling fuel on the hot engine. Do
not fill the fuel tank above the bot-
tom of the filler tube or it may
overflow when the fuel heats up
later and expands.
1. Filler tube
2. Fuel level
EAU00185
cC
Always wipe off spilled fuel imme-
diately with a dry and clean soft
cloth. Fuel may deteriorate painted
surfaces or plastic parts.
EAU00191
NOTE:
If knocking or pinging occurs, use a
different brand of gasoline or high-
er octane grade.
1
2
Recommended fuel:
Regular unleaded gasoline
with a research octane
number of 91 or higher.
Fuel tank capacity:
Total:
9.5 L
Reserve:
2.6 L
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INSTRUMENT AND CONTROL FUNCTIONS
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3-7
NOTE:
The fuel cock operates on vacuum
from the engine when set at “ON”
or “RES”. If the line connecting the
cock to the carburetor intake mani-
fold is not connected or has a leak,
the cock will not function properly.
EAU00208Fuel cock
The negative pressure fuel cock
supplies fuel from the tank to the
carburetor while filtering it also.
The fuel cock has the following
three positions:
ON
With the lever in this position, fuel
flows if the engine is running, but
stops if the engine is not running.
1. Arrow mark pointing to “ON”
RES
This indicates reserve. If you run
out of fuel while riding, move the
lever to “PRI”, start the engine,
then move the lever to “RES”. FILL
THE TANK AT THE FIRST OPPOR-
TUNITY. BE SURE TO MOVE THE
LEVER TO “ON” AFTER REFUEL-
ING.
1. Arrow mark pointing to “RES”
11
ONRES
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3-8
INSTRUMENT AND CONTROL FUNCTIONS
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9PRI
This indicates prime. With the lever
in this position, fuel flows whether
the engine is running or not. If the
fuel tank is completely empty, refill
the tank and move the lever to
“PRI” to prime the carburetor.
Move the lever to “ON” after start-
ing the engine.
1. Arrow mark pointing to “PRI”
EAU02976Starter (choke) “1”
Starting a cold engine requires a
richer air-fuel mixture. A separate
starter circuit supplies this mixture.
Move in direction ato turn on the
starter (choke).
Move in direction bto turn off the
starter (choke).
1. Starter (choke) “1”
EAU02934Steering lock
To lock the steering
Turn the handlebars all the way to
the right and open the steering
lock cover.
Insert the key and turn it 1/8 turn
counterclockwise. Then, push the
key in while turning the handlebars
slightly to the left and turn the key
1/8 turn clockwise.
Check that the steering is locked,
remove the key and close the lock
cover.
To unlock the steering
Insert the key, push it in and turn it
1/8 turn counterclockwise so that it
moves out. Then, release and
remove the key.
1. Steering lock
1
1a
b1
PRI
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INSTRUMENT AND CONTROL FUNCTIONS
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3-11
EW000044
w
This motorcycle must not be oper-
ated with the sidestand in the
down position. If the stand is not
properly retracted, it could contact
the ground and distract the opera-
tor, resulting in a possible loss of
control. Yamaha has designed into
this motorcycle a lockout system
to assist the operator in fulfilling
the responsibility of retracting the
sidestand. Please check carefully
the operating instructions listed
below and if there is any indication
of a malfunction, return the motor-
cycle to a Yamaha dealer immedi-
ately for repair.
EAU00331Sidestand/clutch switch
operation check
Check the operation of the side-
stand switch and clutch switch
against the information below.
EW000045
w
If improper operation is noted,
consult a Yamaha dealer immedi-
ately.
TURN THE MAIN SWITCH TO “ON”
AND THE ENGINE STOP SWITCH TO
“#”.
TRANSMISSION IS IN GEAR AND
SIDESTAND IS UP.
PULL IN CLUTCH LEVER AND
PUSH THE START SWITCH.
ENGINE WILL START.
CLUTCH SWITCH IS OK.
SIDESTAND IS DOWN.
ENGINE WILL STALL.
SIDESTAND SWITCH IS OK.
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EAU01114
PRE-OPERATION CHECKS
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8
9
4-1
Owners are personally responsible for their vehicle’s condition. Your motorcycle’s vital functions can start to
deteriorate quickly and unexpectedly, even if it remains unused (for instance, if it is exposed to the elements).
Any damage, fluid leak or loss of tire pressure could have serious consequences. Therefore, it is very important
that, in addition to a thorough visual inspection, you check the following points before each ride.
EAU00340PRE-OPERATION CHECK LIST
ITEM CHECKS PAGE
Front brake9Check operation, free play, fluid level and vehicle for fluid leakage.
9Fill with DOT 4 (or DOT 3) brake fluid if necessary.
Rear brake9Check operation and free play.3-4 ~ 3-5, 6-20 ~ 6-24
9Adjust if necessary.
Clutch9Check operation and free play.
3-4, 6-19 ~ 6-20
9Adjust if necessary.
Throttle grip and housing9Check for smooth operation.
6-16, 6-27
9Lubricate.
Engine oil9Check oil level.
6-9 ~ 6-12
9Fill with oil if necessary.
Drive chain9Check chain slack and condition.
6-24 ~ 6-27
9Adjust if necessary.
Wheels and tires9Check tire pressure, wear, damage and spoke tightness.
6-17 ~ 6-19
9Tighten spokes if necessary.
Control and meter cable9Check for smooth operation.
6-27
9Lubricate if necessary.
Brake and shift pedal shafts9Check for smooth operation.
6-28
9Lubricate if necessary.
Brake and clutch lever pivots9Check for smooth operation.
6-28
9Lubricate if necessary.
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5-1
EAU00372
OPERATION AND IMPORTANT RIDING POINTS
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EAU00373
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8Before riding this motorcycle,
become thoroughly familiar
with all operating controls and
their functions. Consult a
Yamaha dealer regarding any
control or function that you do
not thoroughly understand.
8Never start your engine or let
it run for any length of time in
a closed area. The exhaust
fumes are poisonous and can
cause loss of consciousness
and death within a short time.
Always operate your motorcy-
cle in an area with adequate
ventilation.
8Before starting out, always be
sure the sidestand is up.
Failure to retract the sidestand
completely can result in a seri-
ous accident when you try to
turn a corner.
EAU03011Starting the engine
NOTE:
This motorcycle is equipped with
an ignition circuit cut-off system.
The engine can be started only
under one of the following condi-
tions:
8The transmission is in neutral.
8The sidestand is up, the trans-
mission is in gear and the
clutch is disengaged.
The motorcycle must not be ridden
when the sidestand is down.
EW000054
w
Before going through the follow-
ing steps, check the function of the
sidestand switch and clutch
switch. (Refer to page 3-11.)
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