EAU00009
TABLE OF CONTENTS
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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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INSTRUMENT AND CONTROL FUNCTIONS
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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.
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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
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See starting instructions prior to
starting the engine.
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INSTRUMENT AND CONTROL FUNCTIONS
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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.
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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
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PRI
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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
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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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OPERATION AND IMPORTANT RIDING POINTS
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91. Turn the fuel cock to “ON”.
2. Turn the main switch to “ON”
and the engine stop switch to
“#”.
3. Shift the transmission into
neutral.
NOTE:
When the transmission is in neu-
tral, the neutral indicator light
should be on. If the light does not
come on, ask a Yamaha dealer to
inspect it.
4. Turn on the starter (choke) and
completely close the throttle
grip.
5. Start the engine by pushing
the start switch.
NOTE:
If the engine fails to start, release
the start switch, wait a few sec-
onds, then try again. Each attempt
should be as short as possible to
preserve the battery. Do not crank
the engine more than 10 seconds
on any one attempt.
6. After starting the engine, move
the starter (choke) to the
halfway position.
NOTE:
For maximum engine life, never
accelerate hard with a cold engine!
7. After warming up the engine,
turn off the starter (choke)
completely.
NOTE:
The engine is warm when it
responds normally to the throttle
with the starter (choke) turned off.
EAU01258Starting a warm engine
The starter (choke) is not required
when the engine is warm.
EC000046
cC
See the “Engine break-in” section
prior to operating the motorcycle
for the first time.
1. Arrow mark pointing to “ON”
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PERIODIC MAINTENANCE AND MINOR REPAIR
EAU00862Supporting the motorcycle
Since the Yamaha XV125S has no
centerstand, follow these precau-
tions when removing the front and
rear wheel or performing other
maintenance requiring the motor-
cycle to stand upright.
Front wheel service
To stabilize the rear of the motor-
cycle, either use a motorcycle
stand or place a motorcycle jack
under the frame in front of the rear
wheel to prevent it from moving
from side to side. Then use a
motorcycle stand to elevate the
front wheel off of the ground.Rear wheel service
Use a motorcycle stand or motor-
cycle jack to elevate the motorcycle
so the rear wheel is off the ground.
Alternatively, two jacks can be
placed under the frame or
swingarm.
Check that the motorcycle is in a
stable and level position before
starting any maintenance. A strong
wooden box can be placed under
the engine for added stability.
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EAU00894Front wheel removalEW000122
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8It is advisable to have a
Yamaha dealer service the
wheel.
8Securely support the motorcy-
cle so there is no danger of it
falling over.
1. Remove the speedometer
cable from the front wheel
side.
1. Speedometer cable
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