engine YAMAHA SLIDER 50 2004 Owners Manual

EAU00027
INSTRUMENT AND CONTROL FUNCTIONS
Main switch / steering lock .................................................................. 3-1
Indicator and warning lights ................................................................ 3-2
Speedometer unit ................................................................................ 3-3
Fuel gauge .......................................................................................... 3-3
Handlebar switches ............................................................................. 3-4
Front brake lever ................................................................................. 3-4
Rear brake lever ................................................................................. 3-5
Fuel and 2-stroke engine oil tank caps ............................................... 3-5
Fuel ..................................................................................................... 3-6
2-stroke engine oil ............................................................................... 3-7
Catalytic converter .............................................................................. 3-7
Starter (choke) lever ........................................................................... 3-7
Kickstarter ........................................................................................... 3-8
Seat ..................................................................................................... 3-8
Luggage hook ..................................................................................... 3-8
Anti-theft device housing ..................................................................... 3-9
3

3
INSTRUMENT AND CONTROL FUNCTIONS
EAU00029
Main switch/steering lock
The main switch/steering lock controls
the ignition and lighting systems, and
is used to lock the steering. The various
positions are described below.
P
U
S
H
ZAUM0332
EAU00038
OFF “”
All electrical systems are off. The key
can be removed.
EAU04470
*The 2-stroke engine oil level warning
light should come on. See page 3-2 for
an explanation of the engine oil level
warning light.
EAUM0074
LOCK“”
The steering is locked, and all electrical
systems are off. The key can be
removed.
To lock the steering
1. Turn the handlebars all the way
to the left.
2. Push the key in from the “
” po-
sition, release it, and then turn it
to “
”.
3. Remove the key.
To unlock the steering
Insert the key and turn it to “
”.
EW000016
Never turn the key to “” or “”.
while the scooter is moving,
otherwise the electrical systems will
be switched off, which may result in
loss of control or an accident. Make
sure that the scooter is stopped
before turning the key to “
” or
“”.
NOTE :
Remove the key from the main switch
when the scooter will be left
unattended.
3-1
EAU04384
ON “”
All electrical circuits are supplied with
power, the taillight and meter lighting
come on, and the engine can be
started. The key cannot be removed.
NOTE :
The headlight comes on as soon as the
engine is started.

INSTRUMENT AND CONTROL FUNCTIONS
31
23
ZAUM0181
EAU03034
Indicator and warning lights
EAU00057
Turn signal indicator light “”
This indicator light flashes when the
turn signal switch is pushed to the left
or right.
1. Turn signal indicator light “”
2. High beam indicator light “
”
3. Oil level warning light “”
EAU00063
High beam indicator light “”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU02958
Oil level warning light “”
This warning light comes on when the
key is in the “
*
” position or when the
oil level in the 2-stroke engine oil tank
is low during operation. If the warning
light comes on during operation, stop
immediately and fill the oil tank with
Yamalube 2 or equivalent 2-stroke
engine oil of either JASO grade "FC"
or ISO grades "EG-C" or "EG-D". The
warning light should go off after the 2-
stroke engine oil tank has been refilled.
NOTE :
If the warning light does not come on
when the key is in the “
*
” position or
does not go off after the 2-stroke engine
oil tank has been refilled, have a
Yamaha dealer check the electrical cir-
cuit.
3-2
EC000000
Do not operate the scooter until you
know that the engine oil level is
sufficient.

INSTRUMENT AND CONTROL FUNCTIONS
312
3ZAUM01421ZAUM0473
1
ZAUM0084
1. Horn switch “ ”
2. Turn signal switch “
”
3. Dimmer switch “,”1. Start switch “
” 1. Front brake lever
EAU00118
Handlebar switches
EAU00125
Turn signal switch “”
To signal a right-hand turn, push this
switch to the right. To signal a left-hand
turn, push this switch to the left. When
released, the switch returns to the
center position. To cancel the turn si-
gnal lights, push the switch in after it
has returned to the center position.
EAU00129
Horn switch “”
Press this switch to sound the horn.
EAU03888
Dimmer switch “,”
Set this switch to “
” for the high beam
and to “
” for the low beam.
EAUM0063
Start switch “”
Push this switch while applying the front
or rear brake to crank the engine with
the starter.
EC000005
See page 5-1 for starting instruc-
tions prior to starting the engine.
EAU03882
Front brake lever
The front brake lever is located on the
right handlebar grip. To apply the front
brake, pull this lever toward the
handlebar grip.
3-4

3
INSTRUMENT AND CONTROL FUNCTIONS
1
ZAUM0085
2 1
ZAUM0144
EAU00163
Rear brake lever
The rear brake lever is located on the
left handlebar grip. To apply the rear
brake, pull this lever toward the
handlebar grip.
1. Rear brake lever
EAU03463
Fuel and 2-stroke engine oil
tank caps
The fuel tank cap and the 2-stroke
engine oil tank cap are located under
the seat. (See page 3-8 for seat
opening and closing procedures.)
Fuel tank cap
To remove the fuel tank cap, turn it
counterclockwise, and then pull it off.
To install the fuel tank cap, turn it
clockwise.2-stroke engine oil tank cap
To remove the 2-stroke engine oil tank
cap, pull it off.
To install the 2-stroke engine oil tank
cap, push it into the oil tank opening.
EW000025
Make sure that the fuel and 2-stroke
engine oil tank caps are properly
installed before riding the scooter.1. Fuel tank cap
2. Oil tank cap
3-5

INSTRUMENT AND CONTROL FUNCTIONS
3
1
2
ZAUM0020
1. Filler tube
2. Fuel level
EAU03753
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
•Do not overfill the fuel tank,
otherwise it may overflow when
the fuel warms up and expands.
•Avoid spilling fuel on the hot
engine.
EAU04206*
Recommended fuel:
REGULAR UNLEADED
GASOLINE ONLY
Fuel tank capacity:
Total amount:
6.5 L
Your Yamaha engine has been
designed to use regular unleaded
gasoline with a research octane
number 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 maintenance
costs.
EWA00008
Since gasoline is flammable, the
following precautions must be
observed.
•Stop the engine before
refueling.
•Never attempt to refuel the
scooter while smoking or near
an open flame.
•Take special care not to spill
gasoline over the engine or
muffler when refueling
immediately after operation.
•Before starting the engine,
quickly wipe off any gasoline
spilled on the engine or muffler.
3-6
EAU00185
EC000008
Immediately wipe off spilled fuel
with a clean, dry, soft cloth, since
fuel may deteriorate painted surfa-
ces or plastic parts.

3
INSTRUMENT AND CONTROL FUNCTIONS
1
a
b
ZAUM0309
EAU03098
Catalytic converter
This scooter is equipped with a catalytic
converter in the muffler.
EW000128
The exhaust system is hot after
operation. Make sure that the
exhaust system has cooled down
before doing any maintenance work.
EC000114
The following precautions must be
observed to prevent a fire hazard or
other damages.
•Use only unleaded gasoline.
The use of leaded gasoline will
cause unrepairable damage to
the catalytic converter.
•Never park the scooter near
possible fire hazards such as
grass or other materials that
easily burn.
•Do not allow the engine to idle
too long.
EAU03750
2-stroke engine oil
Make sure that there is sufficient oil in
the 2-stroke engine oil tank. Add the
recommended 2-stroke engine oil if
necessary.
NOTE :
Make sure that the 2-stroke engine oil
tank cap is properly installed.
Recommended oil:
Yamalube 2 or equivalent 2-
stroke engine oil (JASO grade
"FC", or ISO grades "EG-C" or
"EG-D")
Oil quantity:
1.3 L1. Starter (choke) lever “”
EAU03839
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).
3-7

INSTRUMENT AND CONTROL FUNCTIONS
3
1
ZAUM0146
1. Seat
1
ZAUM0147
1. Kick starter
EAUS0015
Kickstarter
To start the engine, push the kickstarter
down lightly with your foot until the
gears engage, and then push it down
smoothly but forcefully.
EAU02978
Seat
To open the seat
1. Insert the key in the lock, and then
turn it as shown.
2. Fold the seat up.
To close the seat
1. Fold the seat down, and then
push it down to lock it in place.
2. Remove the key.
NOTE :
Make sure that the seat is properly
secured before riding.
3-8
1
ZAUM0149
1. Luggage hook
EAUT0020
Luggage hookEWAT0002
•Do not exceed the load limit of
3.0 kg for the luggage hook.
•Do not exceed the maximum
load of 184 kg for the vehicle.

PRE-OPERATION CHECKS
4The condition of a vehicle is the owner’s responsibility. Vital components can start to deteriorate quickly and unexpectedly,
even if the vehicle remains unused (for example, as a result of exposure to the elements). Any damage, fluid leakage or
loss of tire air pressure could have serious consequences. Therefore, it is very important, in addition to a thorough visual
inspection, to check the following points before each ride.
ITEM CHECKS PAGE
• Check fuel level in fuel tank.
Fuel• Refuel if necessary.3-6
• Check fuel line for leakage.
• Check oil level in oil tank.
Two-stroke engine oil• If necessary, add recommended oil to specified level. 3-7
• Check vehicle for oil leakage.
Final transmission oil• Check oil level and vehicle for oil leakage. 6-6
• Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
Front brake• Check fluid level in reservoir. 3-4, 6-11
• If necessary, add recommended brake fluid to specified level.
• Check hydraulic system for leakage.
• Check operation.
Rear brake• Check lever free play. 3-5, 6-11
• Adjust if necessary.
• Make sure that operation is smooth.
Throttle grip• Check cable free play.
6-8
• If necessary, have Yamaha dealer adjust cable free play
and lubricate cable and grip housing.
EAU03439
Pre-operation check list
4-1

EAU00372
OPERATION AND IMPORTANT RIDING POINTS
Starting the engine .............................................................................. 5-1
Starting a warm engine ....................................................................... 5-2
Starting off ........................................................................................... 5-2
Acceleration and deceleration ............................................................. 5-3
Braking ................................................................................................ 5-3
Tips for reducing fuel consumption ..................................................... 5-3
Engine break-in ................................................................................... 5-4
Parking ................................................................................................ 5-5
5