YAMAHA XJ6F 2010 Workshop Manual

PERIODIC MAINTENANCE AND ADJUSTMENT
6-6
6


Hydraulic brake service
Regularly check and, if necessary, correct the brake fluid level.
Every two years replace the internal components of the brake master cylinders and calipers, and change the brake
fluid.
Replace the brake hoses every four years and if cracked or damaged.
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-7
6
EAU18712
Removing and installing cowl-
ings 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.
EAU46740
Cowling A
To remove the cowlingRemove the bolts, and then take the
cowling off.
To install the cowlingPlace the cowling in the original posi-
tion, and then install the bolts.
EAU47380
Cowlings B and C
To remove one of the cowlings1. Remove cowling A.
1. Cowling A
2. Cowling B
2 1
1. Cowling C
2. Panel A
1. Panel B
2. Panel C
21
12
1. Cowling A
2. Bolt
1
22
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-8
6 2. Remove the quick fastener and
the bolts, and then take the cowl-
ing off.
3. Remove the turn signal light lead
from the guide, and then discon-
nect the turn signal light lead cou-
pler.To install the cowling
1. Connect the turn signal light cou-
pler, and then route the turn signal
light lead through the guide.
2. Place the cowling in the original
position, and then install the bolts
and the quick fastener.3. Install cowling A.
EAU46770
Panel A
To remove the panelRemove the bolt and the quick fasten-
er, and then take the panel off.
1. Cowling B
2. Quick fastener
3. Bolt
33
21
1. Turn signal light lead
2. Guide
3. Turn signal light lead coupler
12
3
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-9
6To install the panel
Place the panel in the original position,
and then install the bolt and the quick
fastener.
EAU47370
Panels B and C
To remove one of the panels1. Remove the quick fastener and
the bolt.2. Slide the panel backward, and
then lift up the rear of the panel
slightly.3. Pull the panel backward to remove
it.
To install the panel
1. Fit the projections on the panel into
the slots and slide it forward.
1. Panel A
2. Bolt
3. Quick fastener
1
2
3
1. Panel B
2. Quick fastener
3. Bolt
1
32
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-10
6 2. Install the bolt and the quick fas-
tener.
EAU19642
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 operating im-
properly. Do not attempt to diagnose
such problems yourself. Instead, have
a Yamaha dealer 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.
Specified spark plug:
NGK/CR9E
1. Spark plug gap
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)
Tightening torque:
Spark plug:
12.5 Nm (1.25 m·kgf, 9.0 ft·lbf)
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-11
6
TIPIf 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.
EAU46721
Engine oil and oil filter car-
tridge 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. A slight tilt to the side can
result in a false 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.TIPThe engine oil should be between the
minimum 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.1. Engine oil dipstick
2. Maximum level mark
3. Minimum level mark
1. Engine oil filler cap
1
2
3
1
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-12
6 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 B. (See page
6-7.)
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,
the engine oil drain bolt and its
gasket to drain the oil from the
crankcase.
TIPSkip steps 5–7 if the oil filter cartridge is
not being replaced.5. Remove the oil filter cartridge with
an oil filter wrench.
TIPAn oil filter wrench is available at a
Yamaha dealer.6. Apply a thin coat of clean engine
oil to the O-ring of the new oil filter
cartridge.TIPMake sure that the O-ring is properly
seated.7. 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
2. Gasket
1. Oil filter cartridge
2. Oil filter wrench
11
21
2
1. O-ring
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-13
68. Install the engine oil drain bolt and
its new gasket, and then tighten
the bolt to the specified torque.
9. Refill with the specified amount of
the recommended engine oil, and
then install and tighten the oil filler
cap.
TIPBe sure to wipe off spilled oil on any
parts after the engine and exhaust sys-
tem have cooled down.NOTICE
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.


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, im-
mediately turn the engine off and
check for the cause.TIPAfter the engine is started, the engine
oil level warning light should go off if the
oil level is sufficient.NOTICE
ECA10401
If the oil level warning light flickers
or remains on even if the oil level is
correct, immediately turn the engine
off and have a Yamaha dealer check
the vehicle.11. Turn the engine off, wait a few min-
utes until the oil settles, and then
check the oil level and correct it if
necessary.
12. Install the cowling.
1. Torque wrenchTightening torque:
Oil filter cartridge:
17 Nm (1.7 m·kgf, 12 ft·lbf)
Tightening torque:
Engine oil drain bolt:
43 Nm (4.3 m·kgf, 31 ft·lbf)
1
Recommended engine oil:
See page 8-1.
Oil quantity:
Without oil filter cartridge replace-
ment:
2.50 L (2.64 US qt, 2.20 Imp.qt)
With oil filter cartridge replacement:
2.80 L (2.96 US qt, 2.46 Imp.qt)
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-14
6
EAU20070
Coolant The coolant level should be checked
before each ride. In addition, the cool-
ant must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.
EAU47330
To check the coolant level
1. Place the vehicle on a level sur-
face and hold it in an upright posi-
tion.
2. Remove cowling A. (See page
6-7.)TIP

The coolant level must be checked
on a cold engine since the level
varies with engine temperature.


Make sure that the vehicle is posi-
tioned straight up when checking
the coolant level. A slight tilt to the
side can result in a false reading.
3. Check the coolant level in the cool-
ant reservoir.TIPThe coolant should be between the
minimum and maximum level marks.
4. If the coolant is at or below the
minimum level mark, remove cowl-
ing C. (See page 6-7.)
5. Remove the coolant reservoir
breather hose from the guide, and
then remove the coolant reservoir
cap.6. Add coolant to the maximum level
mark, and then install the coolant
reservoir cap. WARNING! Re-
move only the coolant reservoir
cap. Never attempt to remove
the radiator cap when the en-
gine is hot.
[EWA15161]
NOTICE: If
coolant is not available, use dis-
tilled water or soft tap water in-
stead. Do not use hard water or
salt water since it is harmful to
the engine. If water has been
used instead of coolant, replace
it with coolant as soon as possi-
ble, otherwise the cooling sys-
tem will not be protected
1. Coolant reservoir
2. Maximum level mark
3. Minimum level mark
1 2
3
1. Coolant reservoir cap
2. Coolant reservoir breather hose
3. Guide
3
1
2
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-15
6against frost and corrosion. If
water has been added to the
coolant, have a Yamaha dealer
check the antifreeze content of
the coolant as soon as possible,
otherwise the effectiveness of
the coolant will be reduced.
[ECA10472]
7. Route the coolant reservoir breath-
er hose through the guide as
shown.
8. Install the cowlings.
EAU47321
To change the coolant
1. Place the vehicle on a level sur-
face and let the engine cool if nec-
essary.
2. Remove cowlings A and C. (See
page 6-7.)
3. Place a container under the engine
to collect the used coolant.
4. Remove the radiator cap.
WARNING! Never attempt to re-
move the radiator cap when the
engine is hot.
[EWA10381]
5. Remove the coolant reservoir
breather hose from the guide, and
then remove the coolant reservoir
cap.6. Remove the coolant reservoir cov-
er and coolant reservoir by remov-
ing the bolts.
Coolant reservoir capacity (up to
the maximum level mark):
0.25 L (0.26 US qt, 0.22 Imp.qt)1. Coolant reservoir breather hose
2. Guide
2 1
1. Radiator cap
1
1. Coolant reservoir cap
2. Coolant reservoir breather hose
3. Guide
1. Bolt
2. Coolant reservoir cover
3. Coolant reservoir
3
1
2
23 1
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