torque YAMAHA YZF600 2002 Owners Manual

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
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-9
63. Check each spark plug for elec-
trode erosion and excessive car-
bon or other deposits, and replace
it if necessary.
To install a spark plug
1. Measure the spark plug gap with a
wire thickness gauge and, if nec-
essary, adjust the gap to specifica-
tion.
2. Clean the surface of the spark
plug gasket and its mating sur-
face, and then wipe off any grime
from the spark plug threads.
3. Install the spark plug with the
spark plug wrench, and then tight-
en it to the specified torque.
NOTE:_ If a torque wrench is not available when
installing a spark plug, a good estimate
of the correct torque is 1/4–1/2 turn
past finger tight. However, the spark
plug should be tightened to the speci-
fied torque as soon as possible. _4. Install the spark plug cap. Specified spark plug:
CR9E (NGK) or
U27ESR-N (DENSO)
a. Spark plug gap
Spark plug gap:
0.7–0.8 mm
Tightening torque:
Spark plug:
12.5 Nm (1.25 m·kgf)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-11
64. Remove the engine oil filler cap
and drain bolt to drain the oil from
the crankcase.
NOTE:_ Skip steps 5–7 if the oil filter cartridge is
not being replaced. _
5. Remove the oil filter cartridge with
an oil filter wrench.NOTE:_ An oil filter wrench is available at a
Yamaha dealer. _
6. Apply a thin coat of engine oil to
the O-ring of the new oil filter car-
tridge.NOTE:_ Make sure that the O-ring is properly
seated. _7. Install the new oil filter cartridge,
and then tighten it to the specified
torque with a torque wrench.
1. Engine oil drain boltLeft side
1. Oil filter cartridge
2. Oil filter wrench
1. O-ring
Tightening torque:
Oil filter cartridge:
17 Nm (1.7 m·kgf)
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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
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-15
68. Remove the right air intake duct by
loosening the clamp screws.9. Remove the radiator cap.
EW000067
WARNING
_ Never attempt to remove the radia-
tor cap when the engine is hot. _10. Place a container under the en-
gine to collect the used coolant.11. Remove the water pump drain bolt
to drain the cooling system.
12. Remove the cylinder drain bolts to
drain the cooling system.
13. After the coolant is completely
drained, thoroughly flush the cool-
ing system with clean tap water.
14. Install the water pump drain bolt
and cylinder drain bolts, and then
tighten them to the specified
torques.
1. Clamp screw (× 2)
2. Right air intake duct
1. Radiator cap
1. Water pump drain bolt
2. Cylinder drain bolt (× 2)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-16
6 15. Install the coolant reservoir by in-
stalling the bolts.
16. Pour the specified amount of rec-
ommended coolant into the radia-
tor and reservoir.
ECA00041
CAUTION:_ Hard water or salt water is harmful
to the engine. You may use soft wa-
ter if you can’t get distilled water. _17. Install the radiator cap and the
coolant reservoir cap, start the en-
gine, let it idle for several minutes,
and then turn it off.
18. Remove the radiator cap to check
the coolant level in the radiator. If
necessary, add sufficient coolant
until it reaches the top of the radia-
tor, and then install the radiator
cap.
19. Check the coolant level in the res-
ervoir. If necessary, remove the
coolant reservoir cap, add coolant
to the maximum level mark, and
then install the cap.
20. Start the engine, and then check
the vehicle for coolant leakage. If
coolant is leaking, have a Yamaha
dealer check the cooling system.
21. Install the right air intake duct, and
then tighten the clamp screws.22. Place the fuel tank in the original
position, and then install the bolts.
23. Install the cowlings.
24. Install the seat. Tightening torques:
Water pump drain bolt:
10 Nm (1.0 m·kgf)
Cylinder drain bolt:
7.0 Nm (0.7 m·kgf)
Antifreeze/water mixture ratio:
1:1
Recommended anti-freeze:
High-quality ethylene glycol
antifreeze containing corrosion
inhibitors for aluminum engines
Coolant quantity:
Total amount:
1.95 L
Coolant reservoir capacity:
0.55 L
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-30
6
NOTE:_ Using the alignment marks on each
side of the swingarm, make sure that
both adjusting nuts are in the same po-
sition 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:
117 Nm (11.7 m·kgf)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-41
6
EAU04196
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 wheel axle, then the
front wheel axle pinch bolt and the
brake caliper bolts to the specified
torques.
7. Install the brake hose holders by
installing the bolts.
8. Connect the speedometer cable.
9. Install the front fender by installing
the bolts.
10. Push down hard on the handlebar
several times to check for proper
fork operation.
EAU04197
Rear wheel To remove the rear wheel
EW000122
WARNING
_

It is advisable to have a Yamaha
dealer service the wheel.


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·kgf)
Front wheel axle pinch bolt:
20 Nm (2.0 m·kgf)
Brake caliper bolt:
40 Nm (4.0 m·kgf)
1. Axle nut
2. Left wheel axle guide
3. Locknut
4. Drive chain slack adjusting nut
5. Wheel axle
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-42
6 1. Loosen the wheel axle nut, the
brake torque rod nut at the brake
caliper bracket, and the brake cal-
iper bolts.
2. Lift the rear wheel off the ground
according to the procedure on
page 6-39.3. Remove the axle nut and the left
wheel axle guide, and then re-
move the brake caliper by remov-
ing the bolts.
4. Disconnect the brake torque rod
from the brake caliper bracket by
removing the cotter pin, the nut,
and the bolt.
5. Loosen the locknut and the drive
chain slack adjusting nut on both
sides 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 wheel. _
7. Pull the wheel axle out along with
the right wheel axle guide, remove
the brake caliper bracket, and then
remove the wheel.
ECA00048
CAUTION:_ Do not apply the brake after the
wheel has been removed together
with the brake disc, otherwise the
brake pads will be forced shut. _
1. Cotter pin
2. Nut
3. Bolt
4. Brake torque rod
1. Bolt (× 2)
2. Right wheel axle guide
1. Brake caliper bracket
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-43
6
EAU04283
To install the rear wheel
1. Install the wheel, right wheel axle
guide, and caliper bracket by in-
serting the wheel axle from the
right-hand side.
2. Install the drive chain onto the rear
sprocket, and then install the left
wheel axle guide and the axle nut.
3. Install the brake caliper by install-
ing the bolts, and then connect the
brake torque rod to the brake cali-
per bracket by installing the bolt
and nut.NOTE:_ Make sure that there is enough space
between the brake pads before installing
the brake caliper onto the brake disc. _
4. Adjust the drive chain slack. (See
page 6-29 for drive chain slack ad-
justment procedures.)
5. Lower the rear wheel so that it is
on the ground.
6. Tighten the axle nut, the brake cal-
iper bolts and the brake torque rod
nut to the specified torques.
7. Install a new cotter pin into the
brake torque rod bolt.
EWA00051
WARNING
_ Always use a new cotter pin for the
brake torque rod bolt. _
EAU03087
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 charts
represent quick and easy procedures
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:
117 Nm (11.7 m·kgf)
Brake caliper bolt:
40 Nm (4.0 m·kgf)
Brake torque rod nut:
30 Nm (3.0 m·kgf)
U4TVE6.book Page 43 Saturday, August 4, 2001 12:14 PM