2001 YAMAHA YZF600 warning

PERIODIC MAINTENANCE AND MINOR REPAIR
6-34
6
EAU00794
Checking the steering Worn or loose steering bearings may
cause danger. Therefore, the operation
of the steering must be checked as fol-
lows at the intervals specified in the pe-
riodic maintenance and lubrication
chart.
1. Place a stand under the engine to
raise the front wheel off the
ground.
EW000115
WARNING
_ Securely support the motorcycle so
that there is no danger of it falling
over. _
2. Hold the lower ends of the front
fork legs and try to move them for-
ward and backward. If any free
play can be felt, have a Yamaha
dealer check or repair the steer-
ing.
EAU01144
Checking the wheel bearings The front and rear wheel bearings must
be checked at the intervals specified in
the periodic maintenance and lubrica-
tion chart. If there is play in the wheel
hub or if the wheel does not turn
smoothly, have a Yamaha dealer
check the wheel bearings.
E_4tv.book Page 34 Wednesday, October 4, 2000 2:15 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-35
6
EAU00800
Battery This motorcycle is equipped with a
sealed-type (MF) battery, which does
not require any maintenance. There is
no need to check the electrolyte or to
add distilled water.
EC000101
CAUTION:_ Never attempt to remove the battery
cell seals, as this would permanent-
ly damage the battery. _
EW000116
WARNING
_ l
Electrolyte is poisonous and
dangerous since it contains sul-
furic acid, which causes severe
burns. Avoid any contact with
skin, eyes or clothing and al-
ways shield your eyes when
working near batteries. In case
of contact, administer the fol-
lowing FIRST AID.
• EXTERNAL: Flush with plenty
of water.• INTERNAL: Drink large quan-
tities of water or milk and im-
mediately call a physician.
• EYES: Flush with water for
15 minutes and seek prompt
medical attention.
l
Batteries produce explosive hy-
drogen gas. Therefore, keep
sparks, flames, cigarettes, etc.,
away from the battery and pro-
vide sufficient ventilation when
charging it in an enclosed
space.
l
KEEP THIS AND ALL BATTER-
IES OUT OF THE REACH OF
CHILDREN.
_To charge the battery
Have a Yamaha dealer charge the bat-
tery as soon as possible if it seems to
have discharged. Keep in mind that the
battery tends to discharge more quickly
if the motorcycle is equipped with op-
tional electrical accessories.To store the battery
1. If the motorcycle will not be used
for more than one month, remove
the battery, fully charge it, and
then place it in a cool, dry place.
2. If the battery will be stored for
more than two months, check it at
least once a month and fully
charge it if necessary.
3. Fully charge the battery before in-
stallation.
4. After installation, make sure that
the battery leads are properly con-
nected to the battery terminals.
E_4tv.book Page 35 Wednesday, October 4, 2000 2:15 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-38
6
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. _3. Place a new bulb into position, and
then secure it with the bulb holder.
EC000104
CAUTION:_ Take care not to damage the follow-
ing parts:l
Headlight bulb
Do not touch the glass part of
the headlight bulb to keep it free
from oil, otherwise the transpar-
ency of the glass, the luminosi-
ty of the bulb, and the bulb life
will be adversely affected. Thor-
oughly clean off any dirt and fin-
gerprints on the headlight bulb
using a cloth moistened with al-
cohol or thinner.
l
Headlight lens
• Do not affix any type of tinted
film or stickers to the head-
light lens.
• Do not use a headlight bulb of
a wattage higher than speci-
fied.
_4. Install the bulb cover, and then
connect the coupler.
5. Have a Yamaha dealer adjust the
headlight beam if necessary.
EAU01623
Replacing the tail/brake light
bulb 1. Remove the tail/brake light 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. _
1. Do not touch this area.
1. Screw (´ 2)
E_4tv.book Page 38 Wednesday, October 4, 2000 2:15 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-40
6
EAU03582
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. Disconnect the speedometer ca-
ble from the front wheel.2. Remove the front fender by re-
moving the bolts.
3. Loosen the front wheel axle pinch
bolt, then the wheel axle and the
brake caliper bolts.
4. Lift the front wheel off the ground
according to the procedure on
page 6-39.
5. Remove the brake hose holders
on each side by removing the
bolts.6. Remove the brake calipers on
each side by removing the bolts.
7. Pull the wheel axle out, remove
the speedometer gear unit, and
then remove the wheel.
ECA00046
CAUTION:_ Do not apply the brake after the
brake calipers have been removed,
otherwise the brake pads will be
forced shut. _
1. Speedometer cable
2. Bolt (´ 2)
3. Front fender
4. Bolt (´ 2)
5. Brake caliper
6. Brake hose holderLeft side
1. Front fender
2. Bolt (´ 2)
3 Front wheel axle pinch bolt
4. Wheel axle
5. Bolt (´ 2)
6. Brake caliper
7. Brake hose holderRight side
E_4tv.book Page 40 Wednesday, October 4, 2000 2:15 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-41
6
EAU03583
To install the front wheel
1. Install the speedometer gear unit
into the wheel hub so that the pro-
jections mesh with the slots.
2. Lift the wheel up between the fork
legs.NOTE:_ Make sure that the slot in the speedom-
eter gear unit fits over the retainer on
the fork leg. _3. Insert the wheel axle.
4. Lower the front wheel so that it is
on the ground.5. Install the brake calipers by install-
ing the bolts.
NOTE:_ Make sure that there is enough space
between the brake pads before install-
ing the brake calipers onto the brake
discs. _6. Tighten the front wheel axle pinch
bolt, then the wheel axle, and the
brake caliper bolts to the specified
torques.
7. Connect the speedometer cable.
8. Install the front fender by installing
the bolts.
9. Push down hard on the handlebar
several times to check for proper
fork operation.
EAU03795
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. Speedometer gear unit
2. Slot
3. Speedometer gear unit retainer
Tightening torques:
Wheel axle:
65 Nm (6.5 m·kg)
Front wheel axle pinch bolt:
20 Nm (2.0 m·kg)
Brake caliper bolt:
40 Nm (4.0 m·kg)
1. Axle nut
2. Left wheel axle guide
3. Locknut (´ 2)
4. Drive chain slack adjusting nut (´ 2)
5. Wheel axle
E_4tv.book Page 41 Wednesday, October 4, 2000 2:15 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-44
6
EAU02990
Troubleshooting charts Starting problems or poor engine performance
EW000125
WARNING
_ Keep away open flames and do not smoke while checking or working on the fuel system. _
Check the fuel level in
the fuel tank.1. Fuel
There is enough fuel.
There is no fuel.
Check the compression.
Supply fuel.
The engine does not start.
Check the compression.
Operate the electric starter.2. Compression
There is compression.
There is no compression.
Check the ignition.
Have a Yamaha dealer
check the vehicle.
Remove the spark plugs
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gaps, or replace the spark plugs.
Have a Yamaha dealer check the vehicle.
The engine does not start.
Have a Yamaha dealer
check the vehicle.
Operate the electric starter.4. Battery
The engine turns over
quickly.
The engine turns over
slowly.DryWet
The engine does not start.
Check the battery.Open the throttle halfway and operate
the electric starter.
The battery is good.Check the battery lead connections,
and charge the battery if necessary.
E_4tv.book Page 44 Wednesday, October 4, 2000 2:15 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-45
6Engine overheating
EW000070
WARNING
_ l
Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.
l
After removing the radiator cap retaining bolt, place a thick rag, like a towel, over the radiator cap, and then
slowly rotate the cap counterclockwise to the detent to allow any residual pressure to escape. When the hiss-
ing sound has stopped, press down on the cap while turning it counterclockwise, and then remove the cap.
_NOTE:_ If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended coolant
as soon as possible. _
Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.Add coolant. (See NOTE.)
Start the engine. If the engine overheats again,
have a
Yamaha dealer check
and repair the cooling system.
There is
leakage.
There is
no leakage.
E_4tv.book Page 45 Wednesday, October 4, 2000 2:15 PM

MOTORCYCLE CARE AND STORAGE
7-3
7After cleaning
1. Dry the motorcycle with a chamois
or an absorbing cloth.
2. Immediately dry the drive chain
and lubricate it to prevent it from
rusting.
3. Use a chrome polish to shine
chrome, aluminum and stainless-
steel parts, including the exhaust
system. (Even the thermally in-
duced discoloring of stainless-
steel exhaust systems can be re-
moved through polishing.)
4. To prevent corrosion, it is recom-
mended to apply a corrosion pro-
tection spray on all metal,
including chrome- and nickel-plat-
ed, surfaces.
5. Use spray oil as a universal clean-
er to remove any remaining dirt.
6. Touch up minor paint damage
caused by stones, etc.
7. Wax all painted surfaces.
8. Let the motorcycle dry completely
before storing or covering it.
EWA00001
WARNING
_ l
Make sure that there is no oil or
wax on the brakes or tires. If
necessary, clean the brake
discs and brake linings with a
regular brake disc cleaner or ac-
etone, and wash the tires with
warm water and a mild deter-
gent.
l
Before operating the motor-
cycle test its braking perfor-
mance and cornering behavior.
_
ECA00013
CAUTION:_ l
Apply spray oil and wax spar-
ingly and make sure to wipe off
any excess.
l
Never apply oil or wax to any
rubber and plastic parts, but
treat them with a suitable care
product.
l
Avoid using abrasive polishing
compounds as they will wear
away the paint.
_
NOTE:_ Consult a Yamaha dealer for advice on
what products to use. _
E_4tv.book Page 3 Wednesday, October 4, 2000 2:15 PM