2008 YAMAHA XJR 1300 engine

PERIODIC MAINTENANCE AND MINOR REPAIR
6-7
6
EAU19193
Panel C
To remove the panelRemove the bolts, and then take the
panel off.
To install the panelPlace the panel in the original position,
and then install the bolts.
EAU19544
Checking the spark plugs The spark plugs are important engine
components, which are easy to check.
Since heat and deposits will cause any
spark plug to slowly erode, the spark
plugs 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.
To remove a spark plug
1. Remove the spark plug cap.
2. Remove the spark plug as shown,
with the spark plug wrench includ-
ed in the owner’s tool kit.To check the spark plugs
1. Check that the porcelain insulator
around the center electrode on
each spark plug is a medium-to-
light tan (the ideal color when the
vehicle is ridden normally).
2. Check that all spark plugs installed
in the engine have the same color.
NOTE:If any spark plug shows a distinctly dif-
ferent color, the engine could be oper-
ating improperly. Do not attempt to
diagnose such problems yourself. In-
stead, have a Yamaha dealer checkthe vehicle.
1. Bolt
1. Spark plug cap
1. Spark plug wrench
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-8
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 surface, 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.
EAU19695
Engine oil and oil filter ele-
ment The engine oil level should be checked
before each ride. In addition, the oil
must be changed and the oil filter ele-
ment replaced at the intervals specified
in the periodic maintenance and lubri-
cation chart.
To check the engine oil level
1. Place the vehicle on the center-
stand.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, and then check the oil level
through the check window located
at the bottom-right side of the
crankcase.
Specified spark plug:
NGK/DPR8EA-91. Spark plug gapSpark plug gap:
0.8–0.9 mm (0.031–0.035 in)
Tightening torque:
Spark plug:
17.5 Nm (1.75 m·kgf, 12.7 ft·lbf)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-9
6
NOTE:The engine oil should be between theminimum and maximum level marks.
4. If the engine oil is below the mini-
mum level mark, add sufficient oil
of the recommended type to raise
it to the correct level.
To change the engine oil (with or
without oil filter element replace-
ment)
1. Place the vehicle on a level sur-
face.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.
NOTE:Skip steps 5–11 if the oil filter elementis not being replaced.
5. Remove panel C. (See page 6-6.)
6. Remove the oil filter element drain
screw to drain the oil from the oil fil-
ter element.
7. Remove the oil filter element cover
by removing the bolt.8. Remove and replace the oil filter
element and O-rings.
1. Engine oil filler cap
2. Engine oil level check window
3. Maximum level mark
4. Minimum level mark
1. Engine oil drain bolt
1. Oil filter element drain screw
2. Bolt
3. Oil filter element cover
1. Oil filter element
2. O-ring
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-10
69. Install the oil filter element cover by
aligning the projection on the cover
with the slot in the crankcase, in-
stalling the bolt, then tightening it
to the specified torque.
NOTE:Make sure that the O-rings are properlyseated.
10. Install the oil filter element drain
screw, and then tighten it to the
specified torque.11. Install the panel.
12. Install the engine oil drain bolt, and
then tighten it to the specified
torque.
13. Refill with the specified amount of
the recommended engine oil, and
then install and tighten the oil filler
cap.
NOTE:Be sure to wipe off spilled oil on any
parts after the engine and exhaust sys-tem have cooled down.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.


Make sure that no foreign mate-rial enters the crankcase.
1. Projection
2. SlotTightening torque:
Oil filter element cover bolt:
15 Nm (1.5 m·kgf, 11 ft·lbf)
Tightening torque:
Oil filter element drain screw:
7 Nm (0.7 m·kgf, 5.1 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 element replace-
ment:
2.80 L (2.96 US qt) (2.46 Imp.qt)
With oil filter element replacement:
3.15 L (3.33 US qt) (2.77 Imp.qt)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-11
6 14. 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.
NOTE:After the engine is started, the engine
oil level warning light should go off if theoil level is sufficient.CAUTION:
ECA10400
If the oil level warning light flickers
or remains on, immediately turn the
engine off and have a Yamaha dealercheck the vehicle.15. Turn the engine off, and then
check the oil level and correct it if
necessary.
EAU43450
Replacing the air filter element
and cleaning the check hose The air filter element should be re-
placed at the intervals specified in the
periodic maintenance and lubrication
chart. Replace the air filter element
more frequently if you are riding in un-
usually wet or dusty areas. In addition,
the air filter check hose must be fre-
quently checked and cleaned if neces-
sary.
To replace the air filter element
1. Remove panel A. (See page 6-6.)
2. Remove the air filter case cover by
removing the screws.
1.“CD” specification
2.“ENERGY CONSERVING II”
1
2
1. Air filter case cover
2. Screw
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-12
63. Pull the air filter element out.
4. Insert a new air filter element into
the air filter case.
CAUTION:
ECA10480


Make sure that the air filter ele-
ment is properly seated in the
air filter case.


The engine should never be op-
erated without the air filter ele-
ment installed, otherwise the
piston(s) and/or cylinder(s) maybecome excessively worn.
5. Install the air filter case cover by in-
stalling the screws.
6. Install the panel.To clean the air filter check hose
1. Check the hose on the front of the
air filter case for accumulated dirt
or water.
2. If dirt or water is visible, remove
the hose, clean it, and then install
it.
EAU21382
Checking the throttle cable
free play The throttle cable free play should mea-
sure 3.0–5.0 mm (0.12–0.20 in) at the
throttle grip. Periodically check the
throttle cable free play and, if neces-
sary, have a Yamaha dealer adjust it.
1. Air filter element
1. Air filter check hose
1. Throttle cable free play
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-13
6
EAU21401
Valve clearance The valve clearance changes with use,
resulting in improper air-fuel mixture
and/or engine noise. To prevent this
from occurring, the valve clearance
must be adjusted by a Yamaha dealer
at the intervals specified in the periodic
maintenance and lubrication chart.
EAU21771
Tires To maximize the performance, durabil-
ity, and safe operation of your motor-
cycle, note the following points
regarding the specified tires.
Tire air pressure
The tire air pressure should be checked
and, if necessary, adjusted before each
ride.
WARNING
EWA10500


The tire air pressure must be
checked and adjusted on cold
tires (i.e., when the temperature
of the tires equals the ambient
temperature).


The tire air pressure must be ad-
justed in accordance with the
riding speed and with the total
weight of rider, passenger, car-
go, and accessories approvedfor this model.
WARNING
EWA11020
Because loading has an enormous
impact on the handling, braking,
performance and safety characteris-
tics of your motorcycle, you should
keep the following precautions in
mind.
Tire air pressure (measured on cold
tires):
0–90 kg (0–198 lb):
Fr o nt :
250 kPa (36 psi) (2.50 kgf/cm²)
Rear:
250 kPa (36 psi) (2.50 kgf/cm²)
90–205 kg (198–452 lb):
Fr o nt :
250 kPa (36 psi) (2.50 kgf/cm²)
Rear:
290 kPa (42 psi) (2.90 kgf/cm²)
High-speed riding:
Fr o nt :
250 kPa (36 psi) (2.50 kgf/cm²)
Rear:
290 kPa (42 psi) (2.90 kgf/cm²)
Maximum load*:
205 kg (452 lb)
* Total weight of rider, passenger, car-
go and accessories
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-20
65. If the drive chain slack is incorrect,
adjust it as follows.
EAU34312
To adjust the drive chain slack
1. Loosen the axle nut and the lock-
nut on each side of the swingarm.
2. To tighten the drive chain, turn the
drive chain slack adjusting bolt on
each side of the swingarm in direc-
tion (a). To loosen the drive chain,
turn the adjusting bolt on each side
of the swingarm in direction (b),
and then push the rear wheel for-
ward.NOTE:Using the alignment marks on each
side of the swingarm, make sure that
both chain pullers are in the same posi-tion for proper wheel alignment.
CAUTION:
ECA10570
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 thespecified limits.
3. Tighten the locknuts, then the axle
nut to their specified torques.
Drive chain slack:
20.0–30.0 mm (0.79–1.18 in)
1. Locknut
2. Drive chain slack adjusting bolt
3. Axle nut
4. Alignment marks
Tightening torques:
Locknut:
16 Nm (1.6 m·kgf, 11 ft·lbf)
Axle nut:
150 Nm (15.0 m·kgf, 110 ft·lbf)
U5WME5E0.book Page 20 Wednesday, December 5, 2007 10:30 AM