2015 YAMAHA JOG50R brake

EAUT1221
Checking the front brake
lever free play
1. Front brake lever free play
The brake lever free play should mea-
sure 2.0–5.0 mm (0.08–0.20 in) as
shown. Periodically check the brake
lever free play and, if necessary, have
a Yamaha dealer check the brake sys-
tem.
EWA10641
sWARNING
An incorrect brake lever free play
indicates 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.
EAU22170
Adjusting the rear brake
lever free play
1. Rear brake lever free play
The brake lever free play should mea-
sure 5.0-10.0 mm (0.20-0.40 in) as
shown. Periodically check the brake
lever 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 decrea-
se the brake lever free play, turn the
adjusting nut in direction (b).
1. Adjusting nut
EWA10650
sWARNING
If proper adjustment cannot be
obtained as described, have a
Yamaha dealer make this adjust-
ment.
(a)
(b)
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-13
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EAU22380
Checking the front brake
pads and rear brake shoes
The front brake pads and the rear bra-
ke shoes must be checked for wear at
the intervals specified in the periodic
maintenance and lubrication chart.
EAUS1510
Front brake pads
1. Brake pad checking cover
1. Lining thickness
Check each front brake pad for
damage and measure the lining thick-
ness. If a brake pad is damaged or if
the lining thickness is less than
3.1 mm (0.12 in), have a Yamaha dea-
ler replace the brake pads as a set.
EAU22540
Rear brake shoes
1. Wear indicator 2. Wear limit line
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 rea-
ches the wear limit line, have a Yama-
ha dealer replace the brake shoes as
a set.
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-14
6

EAU32344
Checking the brake fluid
level
1. Minimum level mark
Insufficient brake fluid may allow air
to enter the brake system, possibly
causing it to become ineffective.
Before riding, check that the brake
fluid is above the minimum level mark
and replenish if necessary. A low bra-
ke fluid level may indicate worn brake
pads and/or brake system leakage. If
the brake fluid level is low, be sure to
check the brake pads for wear and
the brake system for leakage.Observe these precautions:
●When checking the fluid level,
make sure that the top of the
master cylinder is level by turning
the handlebars.
●Use only the recommended qua-
lity brake fluid, otherwise the rub-
ber seals may deteriorate, cau-
sing leakage and poor braking
performance.
●Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and
lead to poor braking performan-
ce.
●Be careful that water does not
enter the master cylinder when
refilling. Water will significantly
lower the boiling point of the fluid
and may result in vapor lock.
●Brake fluid may deteriorate pain-
ted surfaces or plastic parts.
Always clean up spilled fluid
immediately.
●As the brake pads wear, it is nor-
mal for the brake fluid level to
gradually go down. However, if
the brake fluid level goes down
suddenly, have a Yamaha dealer
check the cause.
Recommended brake fluid:
DOT 4
M
IN
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-15
6

EAU22721
Changing the brake fluid
Have a Yamaha dealer change the
brake fluid at the intervals specified in
the TIP after the periodic maintenan-
ce and lubrication chart. In addition,
have the oil seals of the brake master
cylinder and caliper as well as the
brake hose replaced at the intervals
listed below or whenever they are
damaged or leaking.
●Oil seals: Replace every two
years.
●Brake hose: Replace every four
years.
EAU23111
Checking and lubricating the
throttle grip and cable
The operation of the throttle grip
should be checked before each ride.
In addition, the cable should be lubri-
cated at the intervals specified in the
periodic maintenance chart.
EAU43641
Lubricating the front and
rear brake levers
Front brake lever
Rear brake lever
The pivoting points of the front and
rear brake levers must be lubricated
PERIODIC MAINTENANCE AND ADJUSTMENT
6-16
6

at the intervals specified in the perio-
dic maintenance and lubrication
chart.EAU23192
Checking and lubricating the
centerstand
1. Centerstand
The operation of the centerstand
should be checked before each ride,
and the pivots and metal-to-metal
contact surfaces should be lubricated
if necessary.
EWA11301
sWARNING
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, resulting in a possible
loss of control.
Recommended lubricant:
Lithium-soap-based grease
Recommended lubricants:
Front brake lever:
Silicone grease
Rear brake lever:
Lithium-soap-based grease
PERIODIC MAINTENANCE AND ADJUSTMENT
6-17
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EAU23272
Checking the front fork
The condition and operation of the
front fork must be checked as follows
at the intervals specified in the perio-
dic maintenance and lubrication
chart.
To check the condition
1. Check the inner tubes for scrat-
ches, 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.
[EWA10751]
2. While applying the front brake,
push down hard on the handle-
bars several times to check if the
front fork compresses and
rebounds smoothly.
ECA10590
NOTICE
If any damage is found or the front
fork does not operate smoothly,
have a Yamaha dealer check or
repair it.
EAU45511
Checking the steering
Worn or loose steering bearings may
cause danger. Therefore, the opera-
tion of the steering must be checked
as follows at the intervals specified in
the periodic maintenance and lubrica-
tion chart.
1. Place the vehicle on the centers-
tand. WARNING! To avoid
injury, securely support the
vehicle so there is no danger of
it falling over.
[EWA10751]
2. Hold the lower ends of the front
fork legs and try to move them
forward and backward. If any free
play can be felt, have a Yamaha
dealer check or repair the stee-
ring.
PERIODIC MAINTENANCE AND ADJUSTMENT
6-18
6

EAUT1923
Replacing the tail/brake light
bulb or a rear turn signal
light bulb
1. Tail/brake light lens
Tail/brake light bulb
1. Remove the tail/brake light lens
by removing the screws.
1. Screw
2. Tail/brake light lens
2. Remove the burnt out bulb by
pushing it in and turning it coun-
terclockwise.
1. Tail/brake light bulb
3. Insert a new bulb into the socket,
push it in, and then turn it clock-
wise until it stops.
4. Install the lens by installing the
screws.
Rear turn signal light bulb
1. Remove the tail/brake light lens
by removing the screws.
1. Screw
2. Turn signal light lens
2. Remove the turn signal light lens
by removing the screw.
1
2
1
1
2
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PERIODIC MAINTENANCE AND ADJUSTMENT
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1. Turn signal light bulb
3. Remove the burnt out bulb by
pushing it in and turning it coun-
terclockwise.
4. Insert a new bulb into the socket,
push it in, and then turn it clock-
wise until it stops.
5. Install the turn signal light lens by
installing the screw.
6. Install the tail/brake light lens by
installing the screws. NOTICE:
Do not overtighten the screws,
otherwise the lens may break.
[ECA10681]
EAUS1151
Replacing the license plate
light bulb (Depends on
models)
1. Remove the lens by removing the
screw.
1. Screw 2. License plate light bulb socket
2. Remove the burnt out bulb by
pulling it out.
3. Insert a new bulb into the socket.
4. Install the lens by installing the
screw. NOTICE: Do not over-
tighten the screw, otherwise
the lens may break. [ECA11191]
EAUS1412
Replacing an auxiliary light
bulb
This model is equipped with two auxi-
liary lights. If an auxiliary light bulb
burns out, replace it as follows.
1. Remove cowling A. (See page
6-5).
2. Remove the auxiliary light socket
(together with the bulb) by pulling
it out.
1. Auxiliary light bulb socket
3. Remove the burnt-out bulb by
pulling it out.
GGYYBB
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PERIODIC MAINTENANCE AND ADJUSTMENT
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