2003 YAMAHA SLIDER 50 fuel

2
DESCRIPTION
Right view
11. Fuel tank cap (Page 3-5)
12. Oil tank cap (Page 3-5)
13. Anti-theft device housing (Page 3-9)
14. Throttle grip (Page 6-8)
15. Front brake lever (Page 3-4)16. Right handlebar switches (Page 3-4)
17. Front brake fluid reservoir (Page 6-13)
18. Battery (fuse) (Page 6-17 — 6-19)
19. Centerstand (Page 6-15)
11 12 13 14 15 16 17
18
19
2-2

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\fAND\f\bONTROL\fFUN\bTIONS
ZAUM0182
7
9
6
1. Speedometer
2. Odometer
3. Fuel gauge3-3
1. Speedometer
2. Odometer
3. Fuel gauge
1
3
2
ZAUM0183
EAU00098
Speedometer\funit
The speedometer unit is equipped with
a speedometer and an odometer. The
speedometer shows riding speed. The
odometer shows the total distan\fe
traveled.
EAU00113
Fuel\fgauge
The fuel gauge indi\fates the amount
of fuel in the fuel tank. The needle
moves towards "E" (Empty) as the fuel
level de\freases. When the needle
rea\fhes "E", refuel as soon as possi-
ble.
NOTE\f:
Do not allow the fuel tank to empty itself
\fompletely. UK\fonly

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

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