2014 YAMAHA SLIDER 50 maintenance

PERIODIC MAINTENANCE AND ADJUSTMENT
6-13
6
EAUT1222
Checking the front brake lever
free playThe brake lever free play should mea-
sure 10.0–20.0 mm (0.39–0.79 in) as
shown. Periodically check the brake le-
ver free play and, if necessary, have a
Yamaha dealer check the brake sys-
tem.
WARNING
EWA10642
An incorrect brake lever free play in-
dicates a hazardous condition in the
brake system. Do not operate the
vehicle until the brake system has
been checked or repaired by a
Yamaha dealer.
EAU22171
Adjusting the rear brake lever
free playThe brake lever free play should mea-
sure 10.0–20.0 mm (0.39–0.79 in) as
shown. Periodically check the brake le-
ver free play and, if necessary, adjust it
as follows.
To increase the brake lever free play,
turn the adjusting nut at the brake shoe
plate in direction (a). To decrease the
brake lever free play, turn the adjusting
nut in direction (b).
WARNING
EWA10651
If proper adjustment cannot be ob-
tained as described, have a Yamaha
dealer make this adjustment.
1. Front brake lever free play
1
ZAUM0107
1. Rear brake lever free play1ZAUM0108
(a)(b)
ZAUM0320
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-14
6
EAU22382
Checking the front brake pads
and rear brake shoes The front brake pads and the rear
brake shoes must be checked for wear
at the intervals specified in the periodic
maintenance and lubrication chart.
EAU22401
Front brake pads
Check each front brake pad for dam-
age and measure the lining thickness.
If a brake pad is damaged or if the lin-
ing thickness is less than 3.1 mm (0.12
in), have a Yamaha dealer replace the
brake pads as a set.
EAU22541
Rear brake shoes
The rear brake is provided with a wear
indicator, which allows you to check
the brake shoe wear without having to
disassemble the brake. To check the
brake shoe wear, check the position of
the wear indicator while applying the
brake. If a brake shoe has worn to the
point that the wear indicator reaches
the wear limit line, have a Yamaha
dealer replace the brake shoes as a
set.
EAU37003
Checking the brake fluid levelBefore riding, check that the brake fluid
is above the minimum level mark.
Check the brake fluid level with the top
of the reservoir level. Replenish the
brake fluid if necessary.
WARNING
EWA15981
Improper maintenance can result in
loss of braking ability. Observe
these precautions:
1. Lining thickness
1
ZAUM0243
1. Brake shoe wear indicator
2. Brake shoe wear limit line
1
2
ZAUM0059
1. Minimum level markSpecified brake fluid:
DOT 3 or DOT 4
1
ZAUM0900
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-15
6 Insufficient brake fluid may al-
low air to enter the brake sys-
tem, reducing braking
performance.
Clean the filler cap before re-
moving. Use only DOT 3 or DOT
4 brake fluid from a sealed con-
tainer.
Use only the specified brake flu-
id; otherwise, the rubber seals
may deteriorate, causing leak-
age.
Refill with the same type of
brake fluid. Adding a brake fluid
other than DOT 3 or DOT 4 may
result in a harmful chemical re-
action.
Be careful that water does not
enter the brake fluid reservoir
when refilling. Water will signifi-
cantly lower the boiling point of
the fluid and may result in vapor
lock.
NOTICE
ECA17641
Brake fluid may damage painted
surfaces or plastic parts. Always
clean up spilled fluid immediately.
As the brake pads wear, it is normal for
the brake fluid level to gradually go
down. A low brake fluid level may indi-
cate worn brake pads and/or brake
system leakage; therefore, be sure to
check the brake pads for wear and the
brake system for leakage. If the brake
fluid level goes down suddenly, have a
Yamaha dealer check the cause before
further riding.
EAUM1361
Changing the brake fluidHave a Yamaha dealer change the
brake fluid at the intervals specified in
the periodic maintenance and lubrica-
tion chart. In addition, have the brake
hose replaced every four years or
whenever it is damaged or leaking.
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-16
6
EAU23098
Checking and lubricating the
cablesThe operation of all control cables and
the condition of the cables should be
checked before each ride, and the ca-
bles and cable ends should be lubri-
cated if necessary. If a cable is
damaged or does not move smoothly,
have a Yamaha dealer check or re-
place it. WARNING! Damage to the
outer housing of cables may result
in internal rusting and cause inter-
ference with cable movement. Re-
place damaged cables as soon as
possible to prevent unsafe condi-
tions.
[EWA10712]EAU49921
Checking and lubricating the
throttle grip and cableThe operation of the throttle grip
should be checked before each ride. In
addition, the cable should be lubricat-
ed by a Yamaha dealer at the intervals
specified in the periodic maintenance
chart.
EAU43643
Lubricating the front and rear
brake leversThe pivoting points of the front and rear
brake levers must be lubricated at the
intervals specified in the periodic main-
tenance and lubrication chart.
Front brake lever
Rear brake lever
Recommended lubricant:
Yamaha cable lubricant or other
suitable cable lubricant
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-17
6
EAU23193
Checking and lubricating the
centerstandThe operation of the centerstand
should be checked before each ride,
and the pivots and metal-to-metal con-
tact surfaces should be lubricated if
necessary.
WARNING
EWA11302
If the centerstand does not move up
and down smoothly, have a Yamaha
dealer check or repair it. Otherwise,
the centerstand could contact the
ground and distract the operator, re-
sulting in a possible loss of control.
Recommended lubricants:
Front brake lever:
Silicone grease
Rear brake lever:
Lithium-soap-based grease
1. Centerstand
1
ZAUM0455
Recommended lubricant:
Lithium-soap-based grease
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-18
6
EAU23273
Checking the front forkThe condition and operation of the
front fork must be checked as follows
at the intervals specified in the periodic
maintenance and lubrication chart.
To check the condition
Check the inner tubes for scratches,
damage and excessive oil leakage.
To check the operation
1. Place the vehicle on a level surfa-
ce and hold it in an upright posi-
tion. WARNING! To avoid injury,
securely support the vehicle so
there is no danger of it falling
over.
[EWA10752]
2. While applying the front brake,
push down hard on the handle-
bars several times to check if the
front fork compresses and re-
bounds smoothly.
NOTICE
ECA10591
If any damage is found or the front
fork does not operate smoothly,
have a Yamaha dealer check or re-
pair it.
EAU45512
Checking the steeringWorn or loose steering bearings may
cause danger. Therefore, the operation
of the steering must be checked as fol-
lows at the intervals specified in the
periodic maintenance and lubrication
chart.
1. Place the vehicle on the center-
stand. WARNING! To avoid inju-
ry, securely support the vehicle
so there is no danger of it falling
over.
[EWA10752]
2. Hold the lower ends of the front
fork legs and try to move them for-
ward and backward. If any free
play can be felt, have a Yamaha
dealer check or repair the steer-
ing.
ZAUM0600
ZAUM0601
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-19
6
EAU23292
Checking the wheel bearingsThe front and rear wheel bearings must
be checked at the intervals specified in
the periodic maintenance and lubrica-
tion chart. If there is play in the wheel
hub or if the wheel does not turn
smoothly, have a Yamaha dealer
check the wheel bearings.
EAUM3190
BatteryA poorly maintained battery will cor-
rode and discharge quickly. The elec-
trolyte level, battery lead connections
and breather hose routing should be
checked before each ride and at the in-
tervals specified in the periodic main-
tenance and lubrication chart.
To check the electrolyte level
1. Place the scooter on a level surfa-
ce and hold it in an upright posi-
tion.
TIPMake sure that the scooter is posi-
tioned straight up when checking the
electrolyte level.2. Remove panel A. (See page 6-6.)
3. Check the electrolyte level in the
battery.TIPThe electrolyte should be between the
minimum and maximum level marks.4. If the electrolyte is at or below the
minimum level mark, add distilled
water to raise it to the maximum
level mark. NOTICE: Use only
1. Panel A
2. Fuse
3. Battery
32 1
ZAUM0162
1. Maximum level mark
2. Minimum level mark1
2
+
UPPER
LOWER
ZAUM0106
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-20
6distilled water, as tap water
contains minerals that are
harmful to the battery.
[ECA10612]
WARNING
EWA10761
Electrolyte is poisonous and
dangerous since it contains sul-
furic acid, which causes severe
burns. Avoid any contact with
skin, eyes or clothing and al-
ways shield your eyes when
working near batteries. In case
of contact, administer the fol-
lowing FIRST AID.
EXTERNAL: Flush with plenty
of water.
INTERNAL: Drink large quan-
tities of water or milk and im-
mediately call a physician.
EYES: Flush with water for 15
minutes and seek prompt
medical attention.
Batteries produce explosive hy-
drogen gas. Therefore, keep
sparks, flames, cigarettes, etc.,
away from the battery and pro-
vide sufficient ventilation when
charging it in an enclosed
space.KEEP THIS AND ALL BATTER-
IES OUT OF THE REACH OF
CHILDREN.
5. Check and, if necessary, tighten
the battery lead connections and
correct the breather hose routing.
To store the battery
1. If the scooter will not be used for
more than one month, remove the
battery, fully charge it, and then
place it in a cool, dry place.
NOTICE: When removing the
battery, be sure the key is
turned to “ ”, then disconnect
the negative lead before discon-
necting the positive lead.
[ECA17711]
2. If the battery will be stored for
more than two months, check the
specific gravity of the electrolyte
at least once a month and fully
charge the battery whenever nec-
essary.
3. Fully charge the battery before
installation. NOTICE: When in-
stalling the battery, be sure the
key is turned to “ ”, then con-nect the positive lead before
connecting the negative lead.
[ECA17721]
4. After installation, make sure that
the battery leads are properly con-
nected to the battery terminals
and that the breather hose is
properly routed, in good condi-
tion, and not obstructed. NOTICE:
If the breather hose is posi-
tioned in such a way that the
frame is exposed to electrolyte
or gas expelled from the bat-
tery, the frame could suffer
structural and external damag-
es.
[ECA10602]
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