Tires .................................................................6-16
Spoke wheels ..................................................6-19
Adjusting the clutch lever free play ..................6-19
Adjusting the brake lever free play...................6-20
Adjusting the brake pedal position and
free play .........................................................6-21
Adjusting the rear brake light switch ................6-22
Checking the front brake pads and
rear brake shoes ............................................6-23
Checking the brake fluid level ..........................6-24
Changing the brake fluid ..................................6-25
Drive chain slack ..............................................6-25
Lubricating the drive chain ...............................6-27
Checking and lubricating the cables ................6-28
Checking and lubricating the brake and
shift pedals.....................................................6-28
Checking and lubricating the brake and
clutch levers ...................................................6-29
Checking and lubricating the sidestand ...........6-29
Checking the front fork .....................................6-29
Checking the steering ......................................6-30
Checking the wheel bearings ...........................6-31
Battery..............................................................6-31
Replacing the fuses .........................................6-33
Replacing the headlight bulb ...........................6-34
Replacing a turn signal light bulb .....................6-36Replacing the tail/brake light bulb ....................6-36
Supporting the motorcycle ...............................6-37
Front wheel ......................................................6-38
Rear wheel .......................................................6-39
Troubleshooting ...............................................6-41
Troubleshooting chart ......................................6-42
MOTORCYCLE CARE AND STORAGE .............7-1
Care ...................................................................7-1
Storage ..............................................................7-4
SPECIFICATIONS ...............................................8-1
Specifications .....................................................8-1
Conversion table ................................................8-5
CONSUMER INFORMATION ..............................9-1
Identification numbers ........................................9-1
Key identification number...................................9-1
Vehicle identification number .............................9-1
Model label.........................................................9-2
TABLE OF CONTENTS
7
8
9
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EAU01114
PRE-OPERATION CHECKS
1
2
3
4
5
6
7
8
9
4-1
The condition of a vehicle is the ownerís responsibility. Vital components can start to deteriorate quickly and unexpect-
edly, even if the vehicle remains unused (for example, as a result of exposure to the elements). Any damage, fluid leak-
age or loss of tire air pressure could have serious consequences. Therefore, it is very important, in addition to a thor-
ough visual inspection, to check the following points before each ride.
EAU00340*
Pre-operation check list
ITEM CHECKS PAGE
Front brake9Check operation, free play, fluid level and vehicle for fluid leakage.
3-5, 6-20–6-21, 6-23–6-25
9Add DOT 4 brake fluid if necessary.
Rear brake9Check operation and free play.
3-6, 6-21–6-23
9Adjust if necessary.
Clutch9Check operation and free play.
3-5, 6-19–6-20
9Adjust if necessary.
Throttle grip and housing9Check smooth operation.
6-15
9Lubricate.
Engine oil9Check oil level.
6-9–6-10
9Add oil if necessary.
Drive chain9Check chain slack and condition.
6-25–6-27
9Adjust if necessary.
Wheels and tires9Check tire pressure, wear, damage and spoke tightness.
6-16–6-19
9Tighten spokes if necessary.
Control and meter cable9Check smooth operation.
6-28
9Lubricate if necessary.
Brake and shift pedal shafts9Check smooth operation.
6-28
9Lubricate if necessary.
Brake and clutch lever pivots9Check smooth operation.
6-29
9Lubricate if necessary.
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6-2
PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU00473
Periodic maintenance and lubrication chart
No. ITEM CHECKS AND MAINTENANCE JOBSInitial
1,000 kmEvery
6,000 kmEvery
12,000 kmAnnual
check
1
*Fuel line¥ Check fuel hoses and vacuum hose for cracks or damage.
¥ Replace if necessary.ÖÖ
2 Spark plugs¥ Check condition.
¥ Clean, regap or replace if necessary.Ö
3
*Valves¥ Check valve clearance.
¥ Adjust if necessary.Ö
4 Air filter element¥ Clean or replace if necessary.Ö
5 Clutch¥ Check operation.
¥ Adjust or replace cable.ÖÖ
6
*Front brake¥ Check operation, fluid level and vehicle for fluid leakage.
(See NOTE on page 6-4.)
¥ Correct accordingly.
¥ Replace brake pads if necessary.ÖÖ Ö
7
*Rear brake¥ Check operation.
¥ Adjust brake pedal freeplay and replace brake shoes if necessary.ÖÖ Ö
8
*Brake hose¥ Check for cracks or damage.
¥ Replace if necessary.ÖÖ
9
*Wheels¥ Check balance, runout, spoke tightness and for damage.
¥ Tighten spokes and rebalance, replace if necessary.Ö
10
*Tires¥ Check tread depth and for damage.
¥ Replace if necessary.
¥ Check air pressure.
¥ Correct accordingly.Ö
11
*Wheel bearings¥ Check bearings for looseness or damage.
¥ Replace if necessary.Ö
12
*Swingarm¥ Check swingarm pivoting point for play.
¥ Correct if necessary.
¥ Lubricate with molybdenum disulfide grease every 24,000 km or 24
months (whichever comes first).Ö
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PERIODIC MAINTENANCE AND MINOR REPAIR
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
5JX-9-E0 4/9/0 4:11 AM Page 31
6-18
1
2
3
4
5
6
7
8
9
PERIODIC MAINTENANCE AND MINOR REPAIR
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
5JX-9-E0 4/9/0 4:11 AM Page 46
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6-19
PERIODIC MAINTENANCE AND MINOR REPAIR
8Ride at moderate speeds after
changing a tire since the tire sur-
face must first be “broken in” for
it to develop its optimal charac-
teristics.EAU00685
Spoke wheels
To maximize the performance, dura-
bility, and safe operation of your
motorcycle, note the following points
regarding the specified wheels.
8The wheel rims should be
checked for cracks, bends or
warpage, and the spokes for
looseness or damage 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.
8The 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.
EAU00694
Adjusting the clutch lever
free play
The clutch lever free play should
measure 5–10 mm as shown.
Periodically check the clutch lever
free play and, if necessary, adjust it
as follows.
1. Loosen the locknut at the clutch
lever.
2. To increase the clutch lever free
play, turn the adjusting bolt in
direction a. To decrease the
clutch lever free play, turn the
adjusting bolt in direction b.
1. Locknut
2. Adjusting bolt
c. Clutch lever free play
12
b
a
c
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6-22
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2
3
4
5
6
7
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PERIODIC MAINTENANCE AND MINOR REPAIR
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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6-25
PERIODIC MAINTENANCE AND MINOR REPAIR
EAU03238
Changing the brake fluid
Have a Yamaha dealer change the
brake fluid at the intervals specified in
the periodic maintenance and lubrica-
tion 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 it is damaged or leaking.
8Oil seals: Replace every two
years.
8Brake hose: Replace every four
years.2. Shift the transmission into the
neutral position.
3. Move the rear wheel by pushing
the motorcycle to locate the tight-
est portion of the drive chain,
and then measure the drive
chain slack as shown.
4. If the drive chain slack is incor-
rect, adjust it as follows.
EAU00744
Drive chain slack
The drive chain slack should be
checked before each ride and adjust-
ed if necessary.
To check the drive chain slack
1. Place the motorcycle on a level
surface and hold it in an upright
position.
NOTE:
When checking and adjusting the
drive chain slack, the motorcycle
should be positioned straight up and
there should be no weight on it.
a. Drive chain slack
a
Drive chain slack:
30–40 mm
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