2006 YAMAHA YZF-R6 maintenance

PERIODIC MAINTENANCE AND MINOR REPAIR
6-6
6
EAU18712
Removing and installing
cowlings and panels The cowlings and panels shown need
to be removed to perform some of the
maintenance jobs described in this
chapter. Refer to this section each time
a cowling or panel needs to be re-
moved and installed.
EAU38970
Cowlings A and B
To remove one of the cowlingsRemove the bolts and the quick fasten-
er, and then pull the cowling off as
shown.
To install the cowling1. Fit the tabs on the cowling into the
slots and slide it backward.
1. Cowling A
2. Cowling C
1. Cowling B
2. Cowling D
3. Cowling E
1. Panel A
2. Panel B
1. Cowling A
2. Bolt
3. Quick fastener
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-7
6
2. Install the bolts and the quick fas-
tener.
EAU38980
Cowlings C and D
To remove one of the cowlings1. Remove cowling A (if removing
cowling C) or cowling B (if remov-
ing cowling D). (See page 6-6.)
2. Disconnect the turn signal light
lead coupler.
3. Remove the bolts, quick fasteners,
and quick fastener screw, and then
take the cowling off.
1. Cowling A
2. Tab
3. Slot
1. Cowling B
2. Tab
3. Slot
1. Cowling C
2. Bolt
3. Turn signal light lead coupler
4. Quick fastener
1. Quick fastener
1. Quick fastener screw
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-8
6 To install the cowling
1. Place the cowling in the original
position, and then install the bolts,
quick fasteners, and quick fastener
screw.
2. Connect the turn signal light lead
coupler.
3. Install cowling A (to complete the
installation of cowling C) or cowl-
ing B (to complete the installation
of cowling D).
EAU39091
Cowling E
To remove the cowling1. Remove cowling B and panel B.
(See page 6-6.)2. Unfasten the wire harness by
pressing on the tab to open the
plastic fastener.
3. Remove the bolts and the quick
fastener, and then pull the cowling
off as shown.
1. Cowling D
2. Bolt
3. Turn signal light lead coupler
4. Quick fastener
1. Quick fastener
1. Quick fastener screw
1. Plastic fastener
2. Tab
3. Wire harness
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-9
6To install the cowling
1. Fit the slot in cowling E over the
tab on the front cowling.2. Install the bolts and the quick fas-
tener.
3. Place the wire harness in the orig-
inal position, and then close the
plastic fastener.
4. Install the cowling and the panel.
EAU39060
Panels A and B
To remove one of the panelsRemove the bolts, and then pull the
panel off as shown.To install the panel
Place the panel in the original position,
and then install the bolts.
1. Cowling E
2. Bolt
3. Quick fastener
1. Cowling E
2. Slot
3. Front cowling
4. Tab
1. Panel B
2. Bolt
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-10
6
EAU19651
Checking the spark plugs The spark plugs are important engine
components, which should be checked
periodically, preferably by a Yamaha
dealer. Since heat and deposits will
cause any spark plug to slowly erode,
they should be removed and checked
in accordance with the periodic mainte-
nance and lubrication chart. In addition,
the condition of the spark plugs can re-
veal the condition of the engine.
The porcelain insulator around the cen-
ter electrode of each spark plug should
be a medium-to-light tan (the ideal color
when the vehicle is ridden normally),
and all spark plugs installed in the en-
gine should have the same color. If any
spark plug shows a distinctly different
color, the engine could be defective. Do
not attempt to diagnose such problems
yourself. Instead, have a Yamaha deal-
er check the vehicle.
If a spark plug shows signs of electrode
erosion and excessive carbon or other
deposits, it should be replaced.Before installing a spark plug, the spark
plug gap should be measured with a
wire thickness gauge and, if necessary,
adjusted to specification.
Clean the surface of the spark plug
gasket and its mating surface, and then
wipe off any grime from the spark plug
threads.
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.CAUTION:
ECA10840
Do not use any tools to remove or in-
stall the spark plug cap, otherwise
the ignition coil coupler may get
damaged. The spark plug cap may
be difficult to remove because the
rubber seal on the end of the cap fits
tightly. To remove the spark plug
cap, simply twist it back and forth
while pulling it out; to install it, twistit back and forth while pushing it in.
Specified spark plug:
NGK/CR10EK
1. Spark plug gap
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)
Tightening torque:
Spark plug:
12.5 Nm (1.25 m·kgf, 9.0 ft·lbf)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-11
6
EAU38992
Engine oil and oil filter
cartridge The engine oil level should be checked
before each ride. In addition, the oil
must be changed and the oil filter car-
tridge replaced at the intervals speci-
fied in the periodic maintenance and
lubrication chart.
To check the engine oil level
1. Place the vehicle on a level sur-
face and hold it in an upright posi-
tion.NOTE:
Make sure that the vehicle is positioned
straight up when checking the oil level.
A slight tilt to the side can result in afalse reading.
2. Start the engine, warm it up for
several minutes, and then turn it
off.
3. Wait a few minutes until the oil set-
tles.4. Remove the engine oil dipstick and
wipe it clean, insert it back into the
hole (without screwing it in), and
then remove it again to check the
oil level.
NOTE:The engine oil should be between theminimum and maximum level marks.
5. If the engine oil is at or below the
minimum level mark, remove the
oil filler cap, and then add sufficient
oil of the recommended type to
raise it to the correct level.6. Insert and tighten the engine oil
dipstick, and then install and tight-
en the oil filler cap.
To change the engine oil (with or
without oil filter cartridge replace-
ment)
1. Remove cowling C. (See page
6-6.)
2. Start the engine, warm it up for
several minutes, and then turn it
off.
3. Place an oil pan under the engine
to collect the used oil.
4. Remove the engine oil filler cap
and drain bolt to drain the oil from
the crankcase.1. Dipstick
2. Maximum level mark
3. Minimum level mark
1. Engine oil filler cap
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-12
6
NOTE:
Skip steps 5–11 if the oil filter cartridgeis not being replaced.
5. Remove the shift arm by removing
the bolt.
6. Pull the fuel tank breather/overflow
hoses upward to remove them
from the guide.7. Remove the oil filter cartridge with
an oil filter wrench.
NOTE:An oil filter wrench is available at aYamaha dealer.
8. 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 properlyseated.
9. Install the new oil filter cartridge
with an oil filter wrench, and then
tighten it to the specified torque
with a torque wrench.
1. Engine oil drain bolt
1. Bolt
2. Shift arm
3. Engine oil filter cartridge
4. Guide
5. Fuel tank breather/overflow hose
1. Oil filter wrench
1. O-ring
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-13
610. Insert the fuel tank breather/over-
flow hoses into the guide and
place them in their original posi-
tion.
11. Install the shift arm by aligning the
match mark on the shift arm with
the match mark on the shift shaft
and installing the bolt, then tighten-
ing it to the specified torque.
CAUTION:
ECA15340
Be sure to align the match marks to
ensure proper shifting.If the match marks are not aligned,
the shift arm will not move correctly
and you may not be able to shift up
or down the gears.
12. Install the engine oil drain bolt, and
then tighten it to the specified
torque.NOTE:Check the washer for damage and re-place it if necessary.13. Add the specified amount of the
recommended engine oil, and then
install and tighten the oil filler cap.
CAUTION:
ECA11620


In order to prevent clutch slip-
page (since the engine oil also
lubricates the clutch), do not
mix any chemical additives. Do
not use oils with a diesel speci-
fication of “CD” or oils of a high-
er quality than specified. In
addition, do not use oils labeled
“ENERGY CONSERVING II” or
higher.
1. Torque wrenchTightening torque:
Oil filter cartridge:
17 Nm (1.7 m·kgf, 12 ft·lbf)
1. Bolt
2. Shift shaft
3. Match marks
4. Shift armTightening torque:
Shift arm bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Tightening torque:
Engine oil drain bolt:
43 Nm (4.3 m·kgf, 31 ft·lbf)
Recommended engine oil:
See page 8-1.
Oil quantity:
Without oil filter cartridge replace-
ment:
2.40 L (2.54 US qt) (2.11 Imp.qt)
With oil filter cartridge replacement:
2.60 L (2.75 US qt) (2.29 Imp.qt)
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