Page 29 of 100

INSTRUMENT AND CONTROL FUNCTIONS
3-14
3
To decrease the spring preload and
thereby soften the suspension, hold the
upper ring in place while turning the
lower ring (adjusting ring) on each
shock absorber assembly as shown in
illustration
,.
EAU00316
WARNING
_ These shock absorbers contain
highly pressurized nitrogen gas. For
proper handling read and under-
stand the following information be-
fore handling the shock absorbers.
The manufacturer cannot be held re-
sponsible for property damage or
personal injury that may result from
improper handling.l
Do not tamper with or attempt to
open the gas cylinders.
l
Do not subject the shock ab-
sorbers to an open flame or oth-
er high heat sources, otherwise
they may explode due to exces-
sive gas pressure.
l
Do not deform or damage the
gas cylinders in any way, as this
will result in poor damping per-
formance.
l
Always have a Yamaha dealer
service the shock absorbers.
_
1. Upper ring (spring preload adjusting ring)
2. Lower ring (spring preload adjusting ring)
Setting
Minimum (soft)/standard Maximum (hard)
E_5ea.book Page 14 Wednesday, October 4, 2000 4:14 PM
Page 44 of 100

6-1
6
EAU00462
6-PERIODIC MAINTENANCE AND MINOR REPAIR
EAU00464
Safety is an obligation of the owner.
Periodic inspection, adjustment and lu-
brication will keep your vehicle in the
safest and most efficient condition pos-
sible. The most important points of in-
spection, adjustment, and lubrication
are explained on the following pages.
The intervals given in the periodic
maintenance and lubrication chart
should be simply considered as a gen-
eral guide under normal riding condi-
tions. However, DEPENDING ON THE
WEATHER, TERRAIN, GEOGRAPHI-
CAL LOCATION, AND INDIVIDUAL
USE, THE MAINTENANCE INTER-
VALS MAY NEED TO BE SHORT-
ENED.
EW000060
WARNING
_ If you are not familiar with motor-
cycle maintenance work, have a
Yamaha dealer do it for you. _
EAU03758
Owner’s tool kit The owner’s tool kit is located under
the seat. (See page 3-11 for seat re-
moval and installation procedures.)
The service information included in this
manual and the tools provided in the
owner’s tool kit are intended to assist
you in the performance of preventive
maintenance and minor repairs. How-
ever, additional tools such as a torque
wrench may be necessary to perform
certain maintenance work correctly.
NOTE:_ If you do not have the tools or experi-
ence required for a particular job, have
a Yamaha dealer perform it for you. _
EW000063
WARNING
_ Modifications not approved by
Yamaha may cause loss of perfor-
mance and render the vehicle un-
safe for use. Consult a Yamaha
dealer before attempting any chang-
es. _
1. Owner’s tool kit
E_5ea.book Page 1 Wednesday, October 4, 2000 4:14 PM
Page 47 of 100

PERIODIC MAINTENANCE AND MINOR REPAIR
6-4
6
EAU03058
NOTE:_ l
The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
l
Hydraulic brake and clutch systems
• After disassembling the master cylinder, caliper cylinder or clutch release cylinder, always replace the brake fluid.
Check the brake fluid level of the master cylinder and clutch release cylinder regularly and fill as required.
• Replace the oil seals on the inner parts of the master cylinder, caliper cylinder and clutch release cylinder every two
years.
• Replace the brake and clutch hoses every four years or if cracked or damaged.
_23 Engine oil filter element• Replace.ÖÖÖ
24
*Front and rear brake
switches• Check operation.ÖÖÖÖÖ Ö
25 Moving parts and cables• Lubricate.ÖÖÖÖ Ö
26*Lights, signals and
switches• Check operation.
• Adjust headlight beam.ÖÖÖÖÖ Ö NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (´1,000 km)
ANNUAL
CHECK
1 10203040
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-12
6
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.
_7. While lifting the leads as shown,
install the air filter case cover by
installing the screws.
8. Install the panel.
EAU00630
Adjusting the carburetors The carburetors are important parts of
the engine and require very sophisti-
cated adjustment. Therefore, most car-
buretor adjustments should be left to a
Yamaha dealer, who has the neces-
sary professional knowledge and expe-
rience. The adjustment described in
the following section, however, may be
serviced by the owner as part of routine
maintenance.
EC000095
CAUTION:_ The carburetors have been set and
extensively tested at the Yamaha
factory. Changing these settings
without sufficient technical knowl-
edge may result in poor perfor-
mance of or damage to the engine. _
E_5ea.book Page 12 Wednesday, October 4, 2000 4:14 PM
Page 65 of 100

PERIODIC MAINTENANCE AND MINOR REPAIR
6-22
6
NOTE:_ Using the alignment marks on each
side of the swingarm, make sure that
both chain pullers are in the same posi-
tion for proper wheel alignment. _
EC000096
CAUTION:_ Improper drive chain slack will over-
load the engine as well as other vital
parts of the motorcycle and can lead
to chain slippage or breakage. To
prevent this from occurring, keep
the drive chain slack within the
specified limits. _3. Tighten the locknuts, and then
tighten the axle nut to the specified
torque.
EAU03006
Lubricating the drive chain The drive chain must be cleaned and
lubricated at the intervals specified in
the periodic maintenance and lubrica-
tion chart, otherwise it will quickly wear
out, especially when riding in dusty or
wet areas. Service the drive chain as
follows.
EC000097
CAUTION:_ The drive chain must be lubricated
after washing the motorcycle or
riding in the rain. _1. Clean the drive chain with kero-
sene and a small soft brush.
ECA00053
CAUTION:_ To prevent damaging the O-rings,
do not clean the drive chain with
steam cleaners, high-pressure
washers or inappropriate solvents. _2. Wipe the drive chain dry.
3. Thoroughly lubricate the drive
chain with a special O-ring chain
lubricant.
ECA00052
CAUTION:_ Do not use engine oil or any other
lubricants for the drive chain, as
they may contain substances that
could damage the O-rings. _
Tightening torque:
Axle nut:
150 Nm (15.0 m·kg)
E_5ea.book Page 22 Wednesday, October 4, 2000 4:14 PM
Page 75 of 100
PERIODIC MAINTENANCE AND MINOR REPAIR
6-32
6
EAU03598
Front wheel To remove the front wheel
EW000122
WARNING
_ l
It is advisable to have a Yamaha
dealer service the wheel.
l
Securely support the motor-
cycle so that there is no danger
of it falling over.
_1. Place the motorcycle on the cen-
terstand.
2. Disconnect the speedometer ca-
ble from the front wheel.3. Remove the brake hose holders
by removing the bolts.
4. Remove the brake calipers by re-
moving the bolts.
ECA00047
CAUTION:_ Do not pull the brake lever after the
brake caliper has been removed,
otherwise the brake pads will be
forced shut. _
5. Loosen the front wheel axle pinch
bolt, then the wheel axle.
6. Pull the wheel axle out, and then
remove the wheel.
1. Speedometer cable
1. Bolt (´ 3)
2. Brake hose holder
3. Front brake caliperLeft
Right
1. Front wheel axle pinch bolt
2. Wheel axle
E_5ea.book Page 32 Wednesday, October 4, 2000 4:14 PM
Page 77 of 100
PERIODIC MAINTENANCE AND MINOR REPAIR
6-34
6
EAU03760
Rear wheel To remove the rear wheel
EW000122
WARNING
_ l
It is advisable to have a Yamaha
dealer service the wheel.
l
Securely support the motor-
cycle so that there is no danger
of it falling over.
_1. Loosen the axle nut and the brake
caliper bolts.2. Disconnect the brake torque rod
from the brake caliper by removing
the nut and the bolt.
3. Place the motorcycle on the cen-
terstand.
4. Remove the axle nut and the
brake caliper by removing the
bolts.
5. Loosen the locknut and drive
chain slack adjusting nut on each
side of the swingarm.
6. Push the wheel forward, and then
remove the drive chain from the
rear sprocket.
NOTE:_ The drive chain does not need to be
disassembled in order to remove and
install the rear wheel. _
1. Drive chain slack adjusting bolt
2. Locknut
3. Axle nut
1. Wheel axle
E_5ea.book Page 34 Wednesday, October 4, 2000 4:14 PM
Page 79 of 100
PERIODIC MAINTENANCE AND MINOR REPAIR
6-36
6
EAU01008
Troubleshooting Although 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.
E_5ea.book Page 36 Wednesday, October 4, 2000 4:14 PM