warning YAMAHA YZF600 2002 User Guide

INSTRUMENT AND CONTROL FUNCTIONS
3-13
3
EAU01862
Adjusting the front fork This front fork is equipped with spring
preload adjusting bolts, rebound damp-
ing force adjusting screws and com-
pression damping force adjusting
screws.
EW000035
WARNING
_ Always adjust both fork legs equal-
ly, otherwise poor handling and loss
of stability may result. _
Spring preload
To increase the spring preload and
thereby harden the suspension, turn
the adjusting bolt on each fork leg in di-
rection
a. To decrease the spring pre-
load and thereby soften the
suspension, turn the adjusting bolt on
each fork leg in direction
b.
NOTE:_ Align the appropriate groove on the ad-
justing mechanism with the top of the
front fork cap bolt. _CI-10E
1. Spring preload adjusting bolt
1. Current setting
2. Front fork cap bolt
Setting
Minimum (soft) 8
Standard 5
Maximum (hard) 1
U4TVE6.book Page 13 Saturday, August 4, 2001 12:14 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-16
3
NOTE:_ Although the total number of clicks of
the rebound damping force adjusting
mechanism may not exactly match the
above specifications due to small dif-
ferences in production, the actual num-
ber of clicks always represents the
entire adjusting range. To obtain a pre-
cise adjustment, it would be advisable
to check the number of clicks of the re-
bound damping force adjusting mecha-
nism and to modify the specifications
as necessary. _
Compression damping force
To harden the compression damping,
decrease the setting by turning the ad-
justing screw. To soften the compres-
sion damping, increase the setting by
turning the adjusting screw. Make sure
that the position indicator is aligned
with the appropriate setting.CI-10EEAU00315
WARNING
_ This shock absorber contains high-
ly pressurized nitrogen gas. For
proper handling, read and under-
stand the following information be-
fore handling the shock absorber.
The manufacturer cannot be held re-
sponsible for property damage or
personal injury that may result from
improper handling.

Do not tamper with or attempt to
open the gas cylinder.


Do not subject the shock ab-
sorber to an open flame or other
high heat sources, otherwise it
may explode due to excessive
gas pressure.


Do not deform or damage the
gas cylinder in any way, as this
will result in poor damping per-
formance.


Always have a Yamaha dealer
service the shock absorber.
_
1. Compression damping force adjusting screw
2. Position indicator
Setting
Minimum (soft) 6
Standard 4
Maximum (hard) 1
U4TVE6.book Page 16 Saturday, August 4, 2001 12:14 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-18
3
EAU04276
Luggage strap holders There are four luggage strap holders,
two of which can be turned out for eas-
ier access.
EAU00330
Sidestand The sidestand is located on the left side
of the frame. Raise the sidestand or
lower it with your foot while holding the
motorcycle upright.NOTE:_ The built-in sidestand switch is part of
the ignition circuit cut-off system, which
cuts the ignition in certain situations.
(See further down for an explanation of
the ignition circuit cut-off system.) _
EW000044
WARNING
_ The motorcycle must not be ridden
with the sidestand down, or if the
sidestand cannot be properly
moved up (or does not stay up), oth-
erwise the sidestand could contact
the ground and distract the opera-
tor, resulting in a possible loss of
control. Yamaha’s ignition circuit
cut-off system has been designed to
assist the operator in fulfilling the
responsibility of raising the side-
stand before starting off. Therefore,
check this system regularly as de-
scribed below and have a Yamaha
dealer repair it if it does not function
properly. _
1. Luggage strap holder (× 4)Left
Right
U4TVE6.book Page 18 Saturday, August 4, 2001 12:14 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-19
3
EAU03720
Ignition circuit cut-off system The ignition circuit cut-off system (com-
prising the sidestand switch, clutch
switch and neutral switch) has the fol-
lowing functions.

It prevents starting when the trans-
mission is in gear and the side-
stand is up, but the clutch lever is
not pulled.


It prevents starting when the trans-
mission is in gear and the clutch
lever is pulled, but the sidestand is
still down.


It cuts the running engine when
the transmission is in gear and the
sidestand is moved down.
Periodically check the operation of the
ignition circuit cut-off system according
to the following procedure.
EW000045
WARNING
_ If a malfunction is noted, have a
Yamaha dealer check the system
before riding. _U4TVE6.book Page 19 Saturday, August 4, 2001 12:14 PM

PRE-OPERATION CHECKS
4-3
4
NOTE:_ Pre-operation checks should be made each time the motorcycle is used. Such an inspection can be accomplished in a very
short time; and the added safety it assures is more than worth the time involved. _
EWA00033
WARNING
_ If any item in the Pre-operation check list is not working properly, have it inspected and repaired before operating
the motorcycle. _U4TVE6.book Page 3 Saturday, August 4, 2001 12:14 PM

5-1
5
EAU00372
5-OPERATION AND IMPORTANT RIDING POINTS
EAU00373
WARNING
_

Become thoroughly familiar
with all operating controls and
their functions before riding.
Consult a Yamaha dealer re-
garding any control or function
that you do not thoroughly un-
derstand.


Never start the engine or oper-
ate it in a closed area for any
length of time. Exhaust fumes
are poisonous, and inhaling
them can cause loss of con-
sciousness and death within a
short time. Always make sure
that there is adequate ventila-
tion.


Before starting out, make sure
that the sidestand is up. If the
sidestand is not raised com-
pletely, it could contact the
ground and distract the opera-
tor, resulting in a possible loss
of control.
_
EAU03818*
Starting the engine In order for the ignition circuit cut-off
system to enable starting, one of the
following conditions must be met:

The transmission is in the neutral
position.


The transmission is in gear with
the clutch lever pulled and the
sidestand up.
EW000054
WARNING
_

Before starting the engine,
check the function of the igni-
tion circuit cut-off system ac-
cording to the procedure
described on page 3-20.


Never ride with the sidestand
down.
_1. Turn the key to “ON” and make
sure that the engine stop switch is
set to “”.
EC000035
CAUTION:_ If the fuel level warning light comes
on, check the fuel level, and, if nec-
essary, refuel as soon as possible. _2. Shift the transmission into the neu-
tral position.NOTE:_ When the transmission is in the neutral
position, the neutral indicator light
should be on, otherwise have a
Yamaha dealer check the electrical cir-
cuit. _3. Turn the starter (choke) on and
completely close the throttle. (See
page 3-11 for starter (choke) oper-
ation.)
4. Start the engine by pushing the
start switch.
U4TVE6.book Page 1 Saturday, August 4, 2001 12:14 PM

OPERATION AND IMPORTANT RIDING POINTS
5-2
5
NOTE:_ If the engine fails to start, release the
start switch, wait a few seconds, and
then try again. Each starting attempt
should be as short as possible to pre-
serve the battery. Do not crank the en-
gine more than 10 seconds on any one
attempt. _
EC000038
CAUTION:_

The oil level warning light and
fuel level warning light should
come on when the start switch
is pushed, and they should go
off when the start switch is re-
leased.


If the oil level warning light flick-
ers or remains on after starting,
immediately stop the engine,
and then check the engine oil
level and the vehicle for oil leak-
age. If necessary, add engine
oil, and then check the warning
light again. If the warning light
does not come on when push-
ing the start switch, or if it doesnot go off after starting with suf-
ficient engine oil, have a
Yamaha dealer check the elec-
trical circuit.


If the fuel level warning light re-
mains on after starting, stop the
engine, and then check the fuel
level. If necessary, refuel as
soon as possible, and then
check the warning light again. If
the warning light does not come
on when pushing the start
switch, or if it does not go off af-
ter starting with sufficient fuel,
have a Yamaha dealer check the
electrical circuit.
_5. After starting the engine, move the
starter (choke) lever back halfway.
ECA00045
CAUTION:_ For maximum engine life, never ac-
celerate hard when the engine is
cold! _
6. When the engine is warm, turn the
starter (choke) off.NOTE:_ The engine is warm when it responds
normally to the throttle with the starter
(choke) turned off. _
U4TVE6.book Page 2 Saturday, August 4, 2001 12:14 PM

OPERATION AND IMPORTANT RIDING POINTS
5-6
5
EAU00460
Parking When parking, stop the engine, and
then remove the key from the main
switch.
EW000058
WARNING
_

Since the engine and exhaust
system can become very hot,
park in a place where pedestri-
ans or children are not likely to
touch them.


Do not park on a slope or on
soft ground, otherwise the
motorcycle may overturn.
_
U4TVE6.book Page 6 Saturday, August 4, 2001 12:14 PM

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. _
EAU01299
Owner’s tool kit The owner’s tool kit is located inside
the storage compartment under the
seat. (See page 3-11 for seat removal
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
U4TVE6.book Page 1 Saturday, August 4, 2001 12:14 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-12
6 8. Install the engine oil drain bolt, and
then tighten it to the specified
torque.
9. Add the specified amount of the
recommended engine oil, and
then install and tighten the oil filler
cap.
ECA00105
CAUTION:_

In order to prevent clutch slip-
page (since the engine oil also
lubricates the clutch), do not
mix any chemical additives with
the oil or use oils of grade “CD”
or higher. In addition, do not
use oils labeled “ENERGY CON-
SERVING II” or higher.


Make sure that no foreign mate-
rial enters the crankcase.
_
10. Start the engine, and then let it idle
for several minutes while checking
it for oil leakage. If oil is leaking,
immediately turn the engine off
and check for the cause.NOTE:_ After the engine is started, the engine
oil level warning light should go off if the
oil level is sufficient. _
EC000067
CAUTION:_ If the oil level warning light flickers
or remains on, immediately turn the
engine off and have a Yamaha deal-
er check the vehicle. _11. Turn the engine off, and then
check the oil level and correct it if
necessary.
12. Install the cowling. Tightening torque:
Engine oil drain bolt:
43 Nm (4.3 m·kgf)
Recommended engine oil:
See page 8-1.
Oil quantity:
Without oil filter cartridge
replacement:
2.6 L
With oil filter cartridge
replacement:
2.9 L
Total amount (dry engine):
3.5 L
U4TVE6.book Page 12 Saturday, August 4, 2001 12:14 PM