2004 YAMAHA SLIDER 50 brake

OPERATION AND IMPORTANT RIDING POINTS
5
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•Become thoroughly familiar
with all operating controls and
their functions before riding.
Consult a Yamaha dealer
regarding any control or
function that you do not
thoroughly understand.
•Never start the engine or
operate it in a closed area for
any length of time. Exhaust fu-
mes are poisonous, and
inhaling them can cause loss of
consciousness and death
within a short time. Always
make sure that there is
adequate ventilation.
•For safety, always start the
engine with the centerstand
down.
P
U
S
H
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Starting the engine
1. Turn the key to “
*
”, then when
the oil level warning light comes
on, turn it to “
”.
EC000045
If the oil level warning light does not
come on, have a Yamaha dealer
check the electrical circuit.
2. Turn the starter (choke) on and
completely close the throttle. (See
page 3-7 for starter (choke)
operation.)3. Start the engine by pushing the
start switch or by pushing the
kickstarter lever down, while
applying the front or rear brake.
NOTE :
If the engine fails to start by pushing
the start switch, release the switch, wait
a few seconds, and then try again. Each
starting attempt should be as short as
possible to preserve the battery. Do not
crank the engine more than 5 seconds
on any one attempt. If the engine does
not start with the starter motor, try using
the kickstarter.
4. After starting the engine, move the
starter (choke) knob/lever back
halfway.
5-1

OPERATION AND IMPORTANT RIDING POINTS
5
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Starting off
NOTE :
Before starting off, allow the engine to
warm up.
1. While pulling the rear brake lever
with your left hand and holding the
grab bar with your right hand,
push the scooter off the
centerstand.
2. Sit astride the seat, and then
adjust the rear view mirrors.
3. Switch the turn signal on.
4. Check for oncoming traffic, and
then slowly turn the throttle grip
(on the right) in order to take off.
5. Switch the turn signal off.
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Starting a warm engine
Follow the same procedure as for
starting a cold engine with the excep-
tion that the starter (choke) is not
required when the engine is warm.
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For maximum engine life, never
accelerate hard when the engine is
cold!
5. When the engine is warm, turn the
starter (choke) off.
NOTE :
The engine is warm when it responds
normally to the throttle with the starter
(choke) turned off.
5-2
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See page 5-4 for engine break-in ins-
tructions prior to operating the
vehicle for the first time.

OPERATION AND IMPORTANT RIDING POINTS
5
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Acceleration and
deceleration
The speed can be adjusted by opening
and closing the throttle. To increase the
speed, turn the throttle grip in direction
a . To reduce the speed, turn the
throttle grip in direction b .
a b
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Braking
1. Close the throttle completely.
2. Apply both front and rear brakes
simultaneously while gradually
increasing the pressure.
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•Avoid braking hard or suddenly
(especially when leaning over
to one side), otherwise the
scooter may skid or overturn.
•Railroad crossings, streetcar
rails, iron plates on road cons-
truction sites, and manhole
covers become extremely
slippery when wet. Therefore,
slow down when approaching
such areas and cross them with
caution.
•Keep in mind that braking on a
wet road is much more difficult.
•Ride slowly down a hill, as
braking downhill can be very
difficult.
5-3

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PERIODIC MAINTENANCE AND MINOR REPAIR
Periodic maintenance and lubrication chart ............ 6-2
Checking the spark plug ......................................... 6-5
Final transmission oil .............................................. 6-6
Cleaning the air filter element ................................. 6-7
Adjusting the carburetor .......................................... 6-8
Adjusting the throttle cable free play ....................... 6-8
Tires ........................................................................ 6-9
Cast wheels .......................................................... 6-11
Adjusting the front brake lever free play ............... 6-11
Adjusting the rear brake lever free play ................ 6-11
Checking the front brake pads
and rear brake shoes ............................................ 6-12
Checking the brake fluid level ............................... 6-13
Changing the brake fluid ....................................... 6-14
Checking and lubricating the cables ..................... 6-14
6 Checking and lubricating the throttle grip
and cable .............................................................. 6-15
Lubricating the front and rear brake levers ........... 6-15
Checking and lubricating the centerstand ............. 6-15
Checking the front fork .......................................... 6-16
Checking the steering ........................................... 6-16
Checking the wheel bearings ................................ 6-17
Battery ................................................................... 6-17
Replacing the fuse ................................................ 6-19
Replacing a headlight bulb .................................... 6-20
Replacing a front turn signal light bulb .................. 6-21
Replacing a rear turn signal light bulb or
the tail/brake light bulb .......................................... 6-21
Troubleshooting .................................................... 6-21
Troubleshooting chart ........................................... 6-22

PERIODIC MAINTENANCE AND MINOR REPAIR
6
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Periodic maintenance and lubrication chart
NOTE :
•The annual checks must be performed every year, except if a kilometer-based maintenance is performed instead.
•From 30,000 km, repeat the maintenance intervals starting from 6,000 km.
•Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technical skills.
1 * Fuel line •Check fuel hoses and vacuum hose for cracks or damage.√√√√ √
2 Spark plug •Replace.√√√√ √
3 Air filter element•Clean.√√•Replace.√√
4 * Battery•Check electrolyte level and specific gravity.
√√√√ √
•Make sure that the breather hose is properly routed.
•Check operation, fluid level and vehicle for fluid leakage.
√√√√√ √
5 * Front brake(See NOTE on page 6-4.)
•Replace brake pads.Whenever worn to the limit
6 * Rear brake•Check operation and adjust brake lever freeplay.√√√√√ √•Replace brake shoes.Whenever worn to the limit
7 * Brake hose•Check for cracks or damage.√√√√ √•Replace. (See NOTE on page 6-4.)Every 4 years
8 * Wheels •Check runout and for damage.√√√√
ODOMETER READING (x 1,000 km)
NO. ItemCheck or maintenance job
1
ANNUAL
CHECK
6121824
6-2

PERIODIC MAINTENANCE AND MINOR REPAIR
6
6-4 20 * Front and rear
•Check operation.√√√√√ √
brake switches
21 Moving parts and cables •Lubricate.√√√√ √
22 * Throttle grip housing and•Check operation and free play.
cable•Adjust the throttle cable free play if necessary.√√√√ √
•Lubricate the throttle grip housing and cable.
23 * Lights, signals and •Check operation.
√√√√√ √
switches •Adjust headlight beam.
NO. Item
Check or maintenance job
ODOMETER READING (x 1,000 km)
1ANNUAL
CHECK6121824
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NOTE :
•The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
•Hydraulic brake service
•Regularly check and, if necessary, correct the brake fluid level.
•Every two years change the brake fluid.
•Replace the brake hoses every four years and if cracked or damaged.

PERIODIC MAINTENANCE AND MINOR REPAIR
6 Tire inspection
The tires must be checked before each
ride. If the center tread depth reaches
the specified limit, if the tire has a nail
or glass fragments in it, or if the sidewall
is cracked, have a Yamaha dealer re-
place the tire immediately.
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•Have a Yamaha dealer replace
excessively worn tires. Besides
being illegal, operating the
scooter with excessively worn
tires decreases riding stability
and can lead to loss of control.
•The replacement of all wheel
and brake related parts,
including the tires, should be
left to a Yamaha dealer, who has
the necessary professional
knowledge and experience.
Minimum tire tread depth
(front and rear)1.6 mm
NOTE :
The tire tread depth limits may differ
from country to country. Always comply
with the local regulations.
1
2
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1. Tread depth
2. Side wall
Tire information
This scooter is equipped with tubeless
tires.
6-10
MICHELIN O 120/80-12 55LO BOPPER
Front
Manufacturer Size Type
Rear
CHENG SHIN O120/80-12 55JO MAXXIS
MICHELIN O 130/90-10 61LO BOPPER
CHENG SHIN O130/90-10 61JO MAXXIS
Manufacturer Size Type

PERIODIC MAINTENANCE AND MINOR REPAIR
6
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Cast wheels
To maximize the performance,
durability, and safe operation of your
scooter, note the following points
regarding the specified wheels.
•The wheel rims should be
checked for cracks, bends or
warpage before each ride. If any
damage is found, have a Yamaha
dealer replace the wheel. Do not
attempt even the smallest repair
to the wheel. A deformed or
cracked wheel must be replaced.
•The wheel should be balanced
whenever either the tire or wheel
has been changed or replaced. An
unbalanced wheel can result in
poor performance, adverse
handling characteristics, and a
shortened tire life.
•Ride at moderate speeds after
changing a tire since the tire sur-
face must first be "broken in" for it
to develop its optimal
characteristics.
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Adjusting the front brake
lever free play
The brake lever free play should
measure 10 - 20 mm as shown.
Periodically check the brake lever free
play and, if necessary, have a Yamaha
dealer adjust it.
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An incorrect brake lever free play
indicates a hazardous condition in
the brake system. Do not operate the
scooter until the brake system has
been checked or repaired by a
Yamaha dealer.
a
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a
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a. Front brake lever free playa. Rear brake lever free play
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Adjusting the rear brake
lever free play
The brake lever free play should
measure 10 - 20 mm as shown.
Periodically check the brake lever free
play and, if necessary, adjust it as
follows.
6-11