YAMAHA YZF600 2000 Manual Online

PERIODIC MAINTENANCE AND MINOR REPAIR
6-31
6
EAU00794
Steering inspectionPeriodically inspect the condition of the
steering. Worn out or loose steering
bearings may be dangerous. Place a
stand under the engine to raise the
front wheel off the ground. Hold the
lower end of the front forks and try to
move them forward and backward. If
any free play can be felt, ask a Yamaha
dealer to inspect and adjust the steer-
ing. Inspection is easier if the front
wheel is removed.
EW000115
WARNING
@ Securely support the motorcycle so
there is no danger of it falling over. @
EAU01144
Wheel bearingsIf there is play in the front or rear wheel
hub or if the wheel does not turn
smoothly, have a Yamaha dealer in-
spect the wheel bearings.
E_4tv_Periodic.fm Page 31 Wednesday, September 1, 1999 11:12 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-32
6
EAU00800
BatteryThis motorcycle is equipped with a
sealed-type battery. Therefore it is not
necessary to check the electrolyte or fill
the battery with distilled water.l
If the battery seems to have dis-
charged, consult a Yamaha deal-
er.
l
If the motorcycle is equipped with
optional electrical accessories, the
battery tends to discharge more
quickly, so be sure to recharge it
periodically.
EC000101
CAUTION:@ Never try to remove the sealing caps
of the battery cells. The battery will
be damaged. @
EW000116
WA R N I N G
@ Battery electrolyte is poisonous and
dangerous, causing severe burns,
etc. It contains sulfuric acid. Avoid
contact with skin, eyes or clothing.
ANTIDOTE:l
EXTERNAL: Flush with water.
l
INTERNAL: Drink large quanti-
ties of water or milk. Follow with
milk of magnesia, beaten egg,
or vegetable oil. Call a physi-
cian immediately.
l
EYES: Flush with water for
15 minutes and get prompt
medical attention.
Batteries produce explosive gases.
Keep sparks, flame, cigarettes etc.,
away. Ventilate when charging or
using in an enclosed space. Always
shield your eyes when working near
batteries.
KEEP OUT OF REACH OF CHIL-
DREN.
@
Battery storage
When the motorcycle is not used for a
month or longer, remove the battery,
fully charge it and store it in a cool, dry
place.
EC000102
CAUTION:@ l
Completely recharge the bat-
tery before storing. Storing a
discharged battery can cause
permanent battery damage.
l
Use a battery charger designed
for a sealed-type (MF) battery.
Using a conventional battery
charger will cause battery dam-
age. If you do not have a sealed-
type battery charger, contact
your Yamaha dealer.
l
Always make sure the connec-
tions are correct when reinstall-
ing the battery.
@
E_4tv_Periodic.fm Page 32 Wednesday, September 1, 1999 11:12 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-33
6
EAU00819
Fuse replacementThe fuse box is located under the rider
seat and the main fuse case is at-
tached to the starter relay. If any fuse is
blown, turn off the main switch and the
switch of the circuit in question. Install a
new fuse of specified amperage. Turn
on the switches and see if the electrical
device operates. If the fuse immediate-
ly blows again, consult a Yamaha deal-
er. It is recommended that the main
fuse be replaced by a Yamaha dealer.
EC000103
CAUTION:@ Do not use fuses of higher amper-
age rating than those recommend-
ed. Substitution of a fuse of
improper rating can cause extensive
electrical system damage and pos-
sibly a fire. @
EAU00826
Headlight bulb replacementThis motorcycle is equipped with a
quartz bulb headlight. If the headlight
bulb burns out, replace the bulb as fol-
lows:
1. Remove the headlight connector
and the bulb holder cover.
1. Headlight fuse
2. Signaling system fuse
3. Ignition fuse
4. Fan fuse
5. Spare fuse (´ 2)
1. Main fuse
Specified fuses:
Main fuse: 30 A
Headlight fuse: 20 A
Signaling system fuse: 15 A
Fan fuse: 7.5 A
Ignition fuse: 7.5 A
1. Connector
2. Bulb cover
E_4tv_Periodic.fm Page 33 Wednesday, September 1, 1999 11:12 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-34
6 2. Unhook the bulb holder and re-
move the defective bulb.
EW000119
WARNING
@ Keep flammable products and your
hands away from a bulb while it is
on, as it is hot. Do not touch a bulb
until it cools down. @
3. Put a new bulb into position and
secure it in place with the bulb
holder.
EC000104
CAUTION:@ To prevent damage to the following:l
Headlight bulb
Avoid touching the glass part of
the bulb. Keep it free from oil;
otherwise, the transparency of
the glass, life of the bulb, and il-
luminous flux will be adversely
affected. If oil gets on the bulb,
thoroughly clean it with a cloth
moistened with alcohol or lac-
quer thinner.
l
Headlight lens
• Do not affix any type of tinted
film or stickers to the head-
light lens.
• Do not use headlight bulbs of
wattage higher than speci-
fied.
@4. Install the bulb holder cover and
reconnect the headlight connec-
tor. If the headlight beam adjust-
ment is necessary, ask a Yamaha
dealer to make that adjustment.
1. Bulb holder
1. Don’t touch
E_4tv_Periodic.fm Page 34 Wednesday, September 1, 1999 11:12 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-35
6
EAU01623*
Tail/brake light bulb
replacement1. Remove the screws and the lens.
2. Remove the defective bulb by
pushing it inward and turning it
counterclockwise.
3. Install a new bulb by pushing it in-
ward and turning it clockwise.
4. Install the lens and tighten the
screws.
EC000108
CAUTION:@ Do not over-tighten the screws as
the lens may break. @
EAU01095
Turn signal light bulb
replacement1. Remove the screw and the lens.
2. Remove the defective bulb by
pushing it inward and turning it
counterclockwise.
3. Install a new bulb by pushing it in-
ward and turning it clockwise.
4. Install the lens and tighten the
screw.
EAU01252*
Front wheel removal
EW000122
WA R N I N G
@ l
It is advisable to have a Yamaha
dealer service the wheel.
l
Securely support the motor-
cycle so there is no danger of it
falling over.
@1. Remove the speedometer cable
from the front wheel side.
2. Remove the front fender bolts and
front fender.
1. Screw (´ 2)
1. Screw
1. Speedometer cable
2. Front fender bolt (´ 4)
3. Front fender
4. Caliper bolt (´ 2)
5. Brake hose holder
E_4tv_Periodic.fm Page 35 Wednesday, September 1, 1999 11:12 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-36
6 3. Loosen the pinch bolt, wheel axle
and caliper bolts.
4. Elevate the wheel.
5. Remove the brake hose holders
and calipers.
NOTE:@ Do not depress the brake lever when
the calipers are off the discs as the
brake pads will be forced shut. @6. Remove the wheel axle and
speedometer gear unit. Make sure
the motorcycle is properly support-
ed.
EAU01469*
Front wheel installation1. Install the speedometer gear unit
into the wheel hub. Make sure the
wheel hub and the speedometer
gear unit are installed with the pro-
jections meshed into the slots.
2. Lift up the wheel between the front
fork legs. Make sure the slot in the
speedometer gear unit fits over
the stopper on the front fork outer
tube.
3. Install the wheel axle and let the
motorcycle down.4. Install the calipers, caliper bolts
and brake hose holders. Make
sure there is enough gap between
the brake pads before installing
the calipers onto the brake discs.
5. Tighten the wheel axle, pinch bolt
and caliper bolts to the specified
torques.
6. Push down hard on the handle-
bars several times to check for
proper fork operation.
7. Install the speedometer cable.
8. Install the front fender and bolts.
1. Pinch bolt
2. Wheel axle
3. Caliper bolt (´ 2)
1. Speedometer gear unit
2. Slot
3. Stopper
Tightening torque:
Wheel axle:
65 Nm (6.5 m·kg)
Pinch bolt:
23 Nm (2.3 m·kg)
Caliper bolt:
40 Nm (4.0 m·kg)
E_4tv_Periodic.fm Page 36 Wednesday, September 1, 1999 11:12 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-37
6
EAU01247*
Rear wheel removal
EW000122
WARNING
@ l
It is advisable to have a Yamaha
dealer service the wheel.
l
Securely support the motor-
cycle so there is no danger of it
falling over.
@
1. Loosen the wheel axle nut, brake
torque rod bolt and caliper bolts.
2. Elevate the wheel.
3. Remove the wheel axle nut, left
wheel axle guide and caliper bolts,
and then remove the caliper.4. Loosen the locknuts and drive
chain adjusting nuts.
5. Push the wheel forward and re-
move the drive chain.
1. Wheel axle nut
2. Left wheel axle guide
3. Locknut (´ 2)
4. Drive chain adjusting nut (´ 2)
5. Wheel axle
1. Brake torque rod bolt
1. Caliper bolt (´ 2)
2. Right wheel axle guide
E_4tv_Periodic.fm Page 37 Wednesday, September 1, 1999 11:12 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-38
6 6. Pull out the wheel axle along with
the right wheel axle guide, remove
the caliper bracket, and then the
wheel assembly by pulling back-
wards.
NOTE:@ l
Do not depress the brake pedal
when the caliper is off the disc as
the brake pads will be forced shut.
l
You do not have to disassemble
the chain in order to remove or in-
stall the wheel.
@
EAU01246*
Rear wheel installation1. Install the wheel assembly, right
wheel axle guide, caliper bracket,
and then insert the wheel axle.
2. Install the caliper and caliper bolts.
Make sure there is enough gap
between the brake pads before in-
stalling the caliper onto the brake
disc.
3. Tighten the brake torque rod bolt
to the specified torque.
4. Install and adjust the drive chain.
(See page 6-27 for details about
adjusting the drive chain slack.)5. Install the left wheel axle guide
and wheel axle nut and let the
motorcycle down.
6. Tighten the wheel axle nut and
caliper bolts to the specified
torques.
1. Caliper bracket
Tightening torque:
Brake torque rod bolt:
30 Nm (3.0 m·kg)
Axle nut:
117 Nm (11.7 m·kg)
Caliper bolt:
40 Nm (4.0 m·kg)
E_4tv_Periodic.fm Page 38 Wednesday, September 1, 1999 11:12 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-39
6
EAU01008
TroubleshootingAlthough Yamaha motorcycles receive
a rigid inspection before shipment from
the factory, trouble may occur during
operation.
Any problem in the fuel, compression,
or ignition systems can cause poor
starting and loss of power. The trouble-
shooting chart describes a quick, easy
procedure for making checks.
If your motorcycle requires any repair,
bring it to a Yamaha dealer. The skilled
technicians at a Yamaha dealership
have the tools, experience, and know-
how to properly service your motor-
cycle. Use only genuine Yamaha parts
on your motorcycle. Imitation parts may
look like Yamaha parts, but they are of-
ten inferior. Consequently, they have a
shorter service life and can lead to ex-
pensive repair bills.E_4tv_Periodic.fm Page 39 Wednesday, September 1, 1999 11:12 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-40
6
EAU02990*
Troubleshooting chart
EW000125
WARNING
@ Never check the fuel system while smoking or in the vicinity of an open flame. @
Check if there is fuel
in the fuel tank.1. Fuel
Enough fuel.
No fuel.
Go to compression check.
Supply fuel.
Engine doesn’t start, go to compression check.
Use the electric starter.2. Compression
There is compression.
No compression.
Go to ignition check.
Ask a Yamaha dealer to
inspect.
Remove spark plugs
and check electrodes.3. Ignition
Wet.
Dry.
Wipe clean with dry cloth and correct
spark gap or replace spark plugs.
Ask a Yamaha dealer to inspect.
Engine doesn’t start, ask a Yamaha
dealer to inspect.Engine doesn’t start, go to battery
check.Open throttle half-way and start
the engine.
Use the electric starter.4. Battery
Engine turns over
quickly.
Engine turns over
slowly.
Battery good.Check connections or
recharge.
E_4tv_Periodic.fm Page 40 Wednesday, September 1, 1999 11:12 AM