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6
6-3
13 Drive chain¥ Check chain slack.
¥ Adjust if necessary. Make sure that the rear wheel is properly
aligned.
¥ Clean and lubricate.Every 1,000 km and after washing the
motorcycle or riding in the rain
14
*Steering bearings¥ Check bearing play and steering for roughness.
¥ Correct accordingly.
¥ Lubricate with lithium-soap-based grease every 24.000 km or 24
months (whichever comes first)ÖÖ
15
*Chassis fasteners¥ Make sure that all nuts, bolts and screws are properly tightened.
¥ Tighten if necessary.ÖÖ
16 Sidestand¥ Check operation.
¥ Lubricate and repair if necessary.ÖÖ
17
*Sidestand switch¥ Check operation.
¥ Replace if necessary.ÖÖ Ö
18
*Front fork¥ Check operation and for oil leakage.
¥ Correct accordingly.Ö
19
*Rear shock absorber
assemblies¥ Check operation and shock absorbers for oil leakage.
¥ Replace shock absorber assembly if necessary.Ö
20
*Carburetor¥ Check engine idling speed and starter operation.
¥ Adjust if necessary.ÖÖ Ö
21 Engine oil¥ Check oil level and vehicle for oil leakage.
¥ Correct accordingly.
¥ Change. (Warm engine before draining.)ÖÖ Ö
22 Engine oil filter element¥ Replace.ÖÖ
23
*Front and rear brake
switches¥ Check operation.
¥ Correct accordingly.ÖÖ Ö
24
*Moving parts and cables¥ Lubricate if necessary.ÖÖ No. ITEM CHECKS AND MAINTENANCE JOBSInitial
1,000 kmEvery
6,000 kmEvery
12,000 kmAnnual
check
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EAU03206
NOTE:
8The annual checks must be performed every year, except if a 6,000 km or 12,000 km maintenance is performed
instead.
8The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
8Hydraulic brake service
8Regularly check and, if necessary, correct the brake fluid level.
8Every two years replace the internal components of the brake master cylinder and caliper, and change the brake
fluid.
8Replace the brake hoses every four years and if cracked or damaged.
*Since these items require special tools, data and technical skills, have a Yamaha dealer perform the service.
25*Lights, signals and
switches¥ Check operation.
¥ Correct if necessary.
¥ Adjust headlight beam if necessay.ÖÖ Ö No. ITEM CHECKS AND MAINTENANCE JOBSInitial
1,000 kmEvery
6,000 kmEvery
12,000 kmAnnual
check
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EW000079
w
8Have a Yamaha dealer replace
excessively worn tires.
Besides being illegal, operat-
ing the motorcycle with exces-
sively worn tires decreases
riding stability and can lead to
loss of control.
8The replacement of all wheel-
and brake-related parts,
including the tires, should be
left to a Yamaha dealer, who
has the necessary profession-
al knowledge and experience.
Tire information
This motorcycle is equipped with tube
tires.
EW000078
w
8The front and rear tires should
be of the same make and
design, otherwise the handling
characteristics of the motorcy-
cle cannot be guaranteed.
8After extensive tests, only the
tires listed below have been
approved for this model by
Yamaha Motor Co., Ltd.
EAU00681
w
8Have a Yamaha dealer replace
excessively worn tires.
Besides being illegal, operat-
ing the motorcycle with exces-
sively worn tires decreases
riding stability and can lead to
loss of control.
8The replacement of all wheel-
and brake-related parts,
including the tires, should be
left to a Yamaha dealer, who
has the necessary profession-
al knowledge and experience.
8It is not recommended to
patch a punctured tube. If
unavoidable, however, patch
the tube very carefully and
replace it as soon as possible
with a high-quality product.
Manufacturer Size Model
CHENG SHIN 80/100-18 47P C-916
INOUE 80/100-18 47PMARBELLA
NF27
FRONT
Manufacturer Size Model
CHENG SHIN130/90-15 M/C 66PC-915
INOUE
130/90-15 M/C 66PMARBELLA
NR31
REAR
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3. If the specified clutch lever free
play could be obtained as
described above, tighten the
locknut and skip the rest of the
procedure, otherwise proceed as
follows.
4. Fully turn the adjusting bolt at the
clutch lever in direction ato
loosen the clutch cable.
5. Loosen the locknut at the
crankcase.
6. To increase the clutch lever free
play, turn the adjusting nut in
direction a. To decrease the
clutch lever free play, turn the
adjusting nut in direction b.
1. Locknut
2. Clutch lever free play adjusting nut
21
a
b
7. Tighten the locknut at the clutch
lever and the crankcase.
EAU00696
Adjusting the brake lever
free play
The brake lever free play should
measure 5–8 mm as shown.
Periodically check the brake lever
free play and, if necessary, adjust it
as follows.
1. Loosen the locknut at the brake
lever.
2. To increase the brake lever free
play, turn the adjusting bolt in
direction a. To decrease the
brake lever free play, turn the
adjusting bolt in direction b.
3. Tighten the locknut.
1. Locknut
2. Adjusting bolt
c. Brake lever free play
b
a
2 1c
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EW000099
w
8After adjusting the brake lever
free play, check the free play
and make sure that the brake
is working properly.
8A soft or spongy feeling in the
brake lever can indicate the
presence of air in the
hydraulic system. If there is air
in the hydraulic system, have
a Yamaha dealer bleed the
system before operating the
motorcycle. Air in the
hydraulic system will diminish
the braking performance,
which may result in loss of
control and an accident.
EAU01199
Adjusting the brake pedal
position and free play
EW000104
w
It is advisable to have a Yamaha
dealer make these adjustments.
Brake pedal position
The top of the brake pedal should be
positioned approximately 76.6 mm
above the top of the footrest as
shown. Periodically check the brake
pedal position and, if necessary,
adjust it as follows.1. Loosen the locknut at the brake
pedal.
2. To raise the brake pedal, turn the
adjusting bolt in direction a. To
lower the brake pedal, turn the
adjusting bolt in direction b.
3. Tighten the locknut.
EW000105
w
After adjusting the brake pedal
height, the brake pedal free play
must be adjusted.
1
a
2
b
1. Brake pedal position adjusting bolt
2. Locknut
1
b
a
1. Footrest
a. Distance between brake pedal and footrest
b. Brake pedal free play
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Brake pedal free play
The brake pedal free play should
measure 20–30 mm at the brake
pedal end. Periodically check the
brake pedal free play and, if neces-
sary, adjust it as follows.
To increase the brake pedal free
play, turn the adjusting nut at the
brake rod in direction a. To
decrease the brake pedal free play,
turn the adjusting nut in direction b.
1. Brake pedal free play adjusting nut
1
b a
EW000106
w
8After adjusting the drive chain
slack or removing and
installing the rear wheel,
always check the brake pedal
free play.
8If proper adjustment cannot be
obtained as described, have a
Yamaha dealer make this
adjustment.
8After adjusting the brake pedal
free play, check the operation
of the brake light.
EAU00713
Adjusting the rear brake light
switch
The rear brake light switch, which is
activated by the brake pedal, is prop-
erly adjusted when the brake light
comes on just before braking takes
effect. If necessary, adjust the brake
light switch as follows.
Turn the adjusting nut while holding
the rear brake light switch in place.
To make the brake light come on ear-
lier, turn the adjusting nut in direction
a. To make the brake light come on
later, turn the adjusting nut in direc-
tion b.
1. Rear brake light switch
2. Adjusting nut
1
2
b
a
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EAU00720
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.
EAU00725
Front brake pads
Each front brake pad is provided with
a wear indicator groove, which allows
you to check the brake pad wear
without having to disassemble the
brake. To check the brake pad wear,
check the wear indicator groove. If a
brake pad has worn to the point that
the wear indicator groove has almost
disappeared, have a Yamaha dealer
replace the brake pads as a set.
1. Wear indicator groove
1
EAU00727
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.
1. Wear limit
2. Wear indicator
1
2
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EAU00731
Checking the brake fluid
level
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
brake fluid level may indicate worn
brake pads and/or brake system
leakage. If the brake level is low, be
sure to check the brake pads for
wear and the brake system for leak-
age.
1. Mimimum level mark
1
Observe these precautions:
8When checking the fluid level,
make sure that the top of the
master cylinder is level by turn-
ing the handlebars.
8Use only the recommended qual-
ity brake fluid, otherwise the rub-
ber seals may deteriorate, caus-
ing leakage and poor braking
performance.
8Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and
lead to poor braking perfor-
mance.8Be 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.
8Brake fluid may deteriorate paint-
ed surfaces or plastic parts.
Always clean up spilled fluid
immediately.
8As 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
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