YAMAHA SLIDER 50 2003 Owner's Manual
Page 21 of 80
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 
Page 22 of 80
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 
Page 23 of 80
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. 
Page 24 of 80
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 
Page 25 of 80
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. 
Page 26 of 80
3
INSTRUMENT AND CONTROL FUNCTIONS
3-9
1
ZAUM0148
1. Anti-theft device housing
EAUM0114
Anti-theft device housing
The anti-theft device housing, located
under the seat, is designed to store a
joint type anti-theft device with a maxi-
mum length of 1 meter. (See page 3-8
for  seat  opening  and  closing
procedures.)
NOTE :
Some anti-theft devices cannot fit into
the housing due to their size or shape. 
Page 27 of 80
EAU01114
PRE-OPERATION CHECKS
Pre-operation check list ...................................................................... 4-1
4 
Page 28 of 80
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 
Page 29 of 80
4
PRE-OPERATION CHECKS
ITEM CHECKS PAGE
NOTE :
Pre-operation checks should be made each time the scooter is used. Such an inspection can be accomplished in a very
short time; and the added safety it assures is more than worth the time involved.
EWA00033
If any item in the Pre-operation check list is not working properly, have it inspected and repaired before operating
the scooter.
4-2 • Check for damage.
Wheels and Tires• Check tire condition and tread depth.
6-9 — 6-11
• Check air pressure.
• Correct if necessary.
Brake levers• Make sure that operation is smooth.
3-4 — 3-5
• Lubricate lever pivoting points if necessary.
Centerstand• Make sure that operation is smooth.
6-15
• Lubricate pivot if necessary.
Chassis-fasteners• Make sure that all nuts, bolts and screws are properly tightened.
—
• Tighten if necessary.
Instruments, lights• Check operation.
3-1 — 3-4, 6-20 — 6-21
signals and switches• Correct if necessary.
Battery• Check fluid level.
6-17
• Fill with distilled water if necessary.