
PERIODIC MAINTENANCE AND MINOR REPAIR
6-10
6 To check the final gear oil level
1. Place the motorcycle on a level
surface and hold it in an upright
position.
NOTE:_ l
The final gear oil level must be
checked on a cold engine.
l
Make sure that the motorcycle is
positioned straight up when
checking the oil level. A slight tilt to
the side can result in a false
reading.
_2. Remove the oil filler bolt, and then
check the oil level in the final gear
case.
NOTE:_ The oil level should be at the brim of
the filler hole. _3. If the oil is below the brim of the fill-
er hole, add sufficient oil of the rec-
ommended type to raise it to the
correct level.
To change the final gear oil
1. Place an oil pan under the final
gear case to collect the used oil.
2. Remove the oil filler bolt and drain
bolt to drain the oil from the final
gear case.
3. Install the final gear oil drain bolt,
and then tighten it to the specified
torque.
4. Add the recommended final gear
oil to the brim of the filler hole.
NOTE:_ GL4 is a quality rating. Hypoid gear oils
rated GL5 or GL6 may also be used. _5. Install and tighten the filler bolt.
6. Check the final gear case for oil
leakage. If oil is leaking, check for
the cause.
1. Final gear oil filler bolt
2. Correct oil level
3. Final gear oil drain bolt
Tightening torque:
Final gear oil drain bolt:
23 Nm (2.3 m·kg)
Recommended final gear oil:
Hypoid gear oil SAE 80 (API GL4)
or multi-grade hypoid gear oil
SAE 80W-90
Oil quantity:
0.19 L
E_3bt.book Page 10 Thursday, September 7, 2000 10:01 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-12
6 6. Pull the air filter element out.
7. Lightly tap the air filter element to
remove most of the dust and dirt,
and then blow the remaining dirt
out with compressed air as shown.
If the air filter element is damaged,
replace it.
8. Insert the air filter element into the
air filter case.
EC000082
CAUTION:_ l
Make sure that the air filter ele-
ment is properly seated in the
air filter case.
l
The engine should never be op-
erated without the air filter ele-
ment installed, otherwise the
piston(s) and/or cylinder(s) may
become excessively worn.
_9. Place the air filter case cover in the
original position, and then install
the screw.
10. Install the fuel tank by installing the
bolts.
EW000131
WARNING
_ Make sure that the fuel hoses and
vacuum hose are properly connect-
ed and routed, and not pinched. Re-
place any damaged hoses. _
EC000086
CAUTION:_ When installing the fuel tank bolts,
make sure that the washers, rubber
dampers and spacers are posi-
tioned properly. _11. Install the seats.
1. Air filter element
1. Washer
2. Rubber damper
3. Spacer
E_3bt.book Page 12 Thursday, September 7, 2000 10:01 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-21
6
EAU00713
Adjusting the rear brake light
switchThe rear brake light switch, which is ac-
tivated by the brake pedal, is properly
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 earlier,
turn the adjusting nut in direction
a. To
make the brake light come on later,
turn the adjusting nut in direction
b.
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.
EAU01119
Front brake pads
Each front brake pad is provided with
wear indicator grooves, which allow
you to check the brake pad wear with-
out having to disassemble the brake.
To check the brake pad wear, check
the wear indicator grooves. If a brake
pad has worn to the point that the wear
indicators have almost disappeared,
have a Yamaha dealer replace the
brake pads as a set.
1. Rear brake light switch
2. Rear brake light switch adjusting nut
1. Front brake pad wear indicator groove (´ 2)Front
E_3bt.book Page 21 Thursday, September 7, 2000 10:01 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-31
6
EAU00818
Replacing the fuses The fuse box is located under the rider
seat. (See page 3-8 for rider seat re-
moval and installation procedures.)
If a fuse is blown, replace it as follows.
1. Turn the key to “OFF” and turn off
the electrical circuit in question.
2. Remove the blown fuse, and then
install a new fuse of the specified
amperage.
EC000103
CAUTION:@ Do not use a fuse of a higher amper-
age rating than recommended to
avoid causing extensive damage to
the electrical system and possibly a
fire. @3. Turn the key to “ON” and turn on
the electrical circuit in question to
check if the device operates.
4. If the fuse immediately blows
again, have a Yamaha dealer
check the electrical system.
EAU03003
Replacing the headlight bulbThis motorcycle is equipped with a
quartz bulb headlight. If the headlight
bulb burns out, replace it as follows.
1. Remove the headlight unit by re-
moving the screws.
1. Main fuse
2. Headlight fuse
3. Signaling system fuse
4. Ignition fuse
5. Spare fuse (´ 2)
Specified fuses:
Main fuse: 30 A
Headlight fuse: 15 A
Signaling system fuse: 15 A
Ignition fuse: 15 A
1. Screw (´ 2)
E_3bt.book Page 31 Thursday, September 7, 2000 10:01 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-32
6 2. Disconnect the headlight coupler,
and then remove the headlight unit
and bulb cover.3. Remove the headlight bulb holder
by turning it counterclockwise, and
then remove the defective bulb.
EW000119
WARNING
@ Headlight bulbs get very hot. There-
fore, keep flammable products away
from a lit headlight bulb, and do not
touch the bulb until it has cooled
down. @4. Place a new bulb into position, and
then secure it with the bulb holder.
EC000105
CAUTION:@ Do not touch the glass part of the
headlight bulb to keep it free from
oil, otherwise the transparency of
the glass, the luminosity of the bulb,
and the bulb life will be adversely af-
fected. Thoroughly clean off any dirt
and fingerprints on the headlight
bulb using a cloth moistened with
alcohol or thinner. @5. Install the bulb cover, and then
connect the coupler.
6. Install the headlight unit by install-
ing the screws.
7. Have a Yamaha dealer adjust the
headlight beam if necessary.
1. Headlight coupler
2. Headlight bulb cover
1. Headlight bulb holder
1. Do not touch this area.
E_3bt.book Page 32 Thursday, September 7, 2000 10:01 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-33
6
EAU00855
Replacing a turn signal light
bulb or the tail/brake light
bulb1. Remove the lens by removing the
screws.2. Remove the defective bulb by
pushing it in and turning it counter-
clockwise.
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.
EC000108
CAUTION:@ Do not overtighten the screws, oth-
erwise the lens may break. @
EAU01579
Supporting the motorcycle Since this model is not equipped with a
centerstand, follow these precautions
when removing the front and rear
wheel or performing other mainte-
nance requiring the motorcycle to
stand upright. Check that the motor-
cycle is in a stable and level position
before starting any maintenance. A
strong wooden box can be placed un-
der the engine for added stability.
To service the front wheel
1. Stabilize the rear of the motorcycle
by using a motorcycle stand or, if
an additional motorcycle stand is
not available, by placing a jack un-
der the frame in front of the rear
wheel.
2. Raise the front wheel off the
ground by using a motorcycle
stand.
1. Screw (´ 2)
1. Tail/brake light bulb (´ 2)
E_3bt.book Page 33 Thursday, September 7, 2000 10:01 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-37
6
EAU01406
To install the rear wheel
1. Apply a light coating of lithium-
soap-based grease to the splines
of the final gear case and wheel
hub.
2. Install the wheel by inserting the
wheel axle.
3. Install the brake rod onto the brake
camshaft lever, and then install
the brake pedal free play adjusting
nut onto the brake rod.
4. Connect the brake torque rod to
the brake shoe plate by installing
the bolt and the nut.
5. Install the rear wheel axle pinch
bolt.6. Lower the rear wheel so that it is
on the ground.
7. Tighten the axle nut, pinch bolt
and brake torque rod nut to the
specified torques.
8. Install the brake torque rod cotter
pin.
EW000124
WARNING
_ Always use a new cotter pin. _9. Adjust the brake pedal free play.
(See page 6-20 for brake pedal
free play adjustment procedures.)
EW000103
WARNING
_ After adjusting the brake pedal free
play, check the operation of the
brake light. _
EAU01008
TroubleshootingAlthough Yamaha motorcycles receive
a thorough inspection before shipment
from the factory, trouble may occur dur-
ing operation. Any problem in the fuel,
compression, or ignition systems, for
example, can cause poor starting and
loss of power.
The following troubleshooting chart
represents a quick and easy procedure
for checking these vital systems your-
self. However, should your motorcycle
require any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the motorcycle
properly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look
like Yamaha parts, but they are often
inferior, have a shorter service life and
can lead to expensive repair bills.
Tightening torques:
Axle nut:
107 Nm (10.7 m·kg)
Rear wheel axle pinch bolt:
16 Nm (1.6 m·kg)
Brake torque rod nut:
20 Nm (2.0 m·kg)
E_3bt.book Page 37 Thursday, September 7, 2000 10:01 AM

MOTORCYCLE CARE AND STORAGE
7-2
7
l
Do not use any harsh chemical
products on plastic parts. Be
sure to avoid using cloths or
sponges which have been in
contact with strong or abrasive
cleaning products, solvent or
thinner, fuel (gasoline), rust re-
movers or inhibitors, brake flu-
id, antifreeze or electrolyte.
l
Do not use high-pressure wash-
ers or steam-jet cleaners since
they cause water seepage and
deterioration in the following ar-
eas: seals (of wheel and swing-
arm bearings, fork and brakes),
electric components (couplers,
connectors, instruments,
switches and lights), breather
hoses and vents.
l
For motorcycles equipped with
a windshield: Do not use strong
cleaners or hard sponges as
they will cause dulling or
scratching. Some cleaning
compounds for plastic may
leave scratches on the wind-
shield. Test the product on a
small hidden part of the wind-
shield to make sure that it does
not leave any marks. If the wind-
shield is scratched, use a quali-
ty plastic polishing compound
after washing.
@After normal useRemove dirt with warm water, a mild
detergent, and a soft, clean sponge,
and then rinse thoroughly with clean
water. Use a toothbrush or bottlebrush
for hard-to-reach areas. Stubborn dirt
and insects will come off more easily if
the area is covered with a wet cloth for
a few minutes before cleaning.After riding in the rain, near the sea or
on salt-sprayed roadsSince sea salt or salt sprayed on roads
during winter are extremely corrosive in
combination with water, carry out the
following steps after each ride in the
rain, near the sea or on salt-sprayed
roads.NOTE:@ Salt sprayed on roads in the winter may
remain well into spring. @1. Clean the motorcycle with cold
water and a mild detergent, after
the engine has cooled down.
ECA00012
CAUTION:@ Do not use warm water since it in-
creases the corrosive action of the
salt. @2. After drying the motorcycle, apply
a corrosion protection spray on all
metal, including chrome- and nick-
el-plated, surfaces to prevent
corrosion.
E_3bt.book Page 2 Thursday, September 7, 2000 10:01 AM