2015 YAMAHA YZF-R3 torque

INSTRUMENT AND CONTROL FUNCTIONS
3-21
3rection (a). To decrease the spring
preload and thereby soften the
suspension, turn the adjusting ring
in direction (b).
 Align the appropriate notch in
the adjusting ring with the po-
sition indicator on the shock
absorber.
 Use the special wrench and
the extension bar included in
the owner’s tool kit to make
the adjustment. 3. Install the drive chain guard by in-
stalling the collars and bolts, and
then tighten the bolts to the spec-
ified torque.
EAU15152
Lugga ge strap hol dersThere is a luggage strap holder on
each passenger footrest.
1. Extension bar
2. Special wrench
3. Spring preload adjusting ring
4. Position indicator
7 654321
4
(b)
(a)
3
21
Sprin
g preloa d setting :
Minimum (soft):
1
Standard:
3
Maximum (hard): 7
Ti ghtenin g torque:
Drive chain guard bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
1. Luggage strap holder
1
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-2
6
EAUB1402
Owner’s tool kitThe owner’s tool kit is located on the
bottom of the passenger seat (See
page 3-18.) and it held in place with an
O-ring.
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.
TIPIf you do not have the tools or experi-
ence required for a particular job, have
a Yamaha dealer perform it for you.
1. Owner’s tool kit
2. O-ring
12
UB02E0E0.book Page 2 Thursday, January 15, 2015 3:39 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-8
6
EAU19643
Checking the spark plug sThe spark plugs are important engine
components, which should be
checked periodically, preferably by a
Yamaha dealer. Since heat and depos- its will cause any spark plug to slowly
erode, they should be removed and
checked in accordance with the peri-
odic maintenance and lubrication
chart. In addition, the condition of the
spark plugs can reveal the condition of
the engine.
The porcelain insulator around the
center 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 engine should have the same
color. If any spark plug shows a dis-
tinctly different color, the engine could
be operating improperly. Do not at-
tempt to diagnose such problems
yourself. Instead, have a Yamaha deal-
er check the vehicle.
If a spark plug shows signs of elec-
trode 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.
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
specified torque as soon as possible.
Specified
spark plu g:
NGK/CR8E
1. Spark plug gap
Spark plu g g ap:
0.7–0.8 mm (0.028–0.031 in)
Ti ghtenin g torque:
Spark plug: 13 Nm (1.3 m·kgf, 9.4 ft·lbf)
UB02E0E0.book Page 8 Thursday, January 15, 2015 3:39 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-10
6
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 cartridgewith an oil filter wrench, and then
tighten it to the specified torque
with a torque wrench. 8. Install the engine oil drain bolt and
its new gasket, and then tighten
the bolt to the specified torque.
TIPInstall the new gasket as shown.
1. Oil filter wrench
2. Oil filter cartridge
1 2
1. O-ring
1. Torque wrench
Tightenin g torque:
Oil filter cartridge: 17 Nm (1.7 m·kgf, 12 ft·lbf)
1
UB02E0E0.book Page 10 Thursday, January 15, 2015 3:39 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-11
69. Refill with the specified amount ofthe 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
ECA11621
In or der to prevent clutch slip-
pa ge (since the en gine oil also
lu bricates the clutch), do not
mix any chemical additives. Do
not use oils with a diesel speci-
fication of “CD” or oils of a hi gh-
er quality than specifie d. In
a ddition, do not use oils la beled
“ENERGY CONSERVING II” or
hi gher.
 Make sure that no forei gn 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.TIPAfter the engine is started, the engine
oil pressure warning light should go off.
NOTICE
ECA20860
If the oil pressure warnin g lig ht flick-
ers or remains on even if the oil level
is correct, imme diately turn the en-
g ine off an d have a Yamaha d ealer
check the vehicle.11. Turn the engine off, wait a few minutes until the oil settles, and
then check the oil level and cor-
rect it if necessary.
1. Engine oil drain bolt
2. GasketTightenin g torque:
Engine oil drain bolt: 20 Nm (2.0 m·kgf, 14 ft·lbf)
Recommen ded en gine oil:
See page 8-1.
Oil quantity:
Without oil filter cartridge replace-
ment:1.80 L (1.90 US qt, 1.58 Imp.qt)
With oil filter cartridge replacement: 2.10 L (2.22 US qt, 1.85 Imp.qt)
2
1
UB02E0E0.book Page 11 Thursday, January 15, 2015 3:39 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-23
62. To tighten the drive chain, turn the
drive chain slack adjusting bolt on
each side of the swingarm in di-
rection (a). To loosen the drive
chain, turn the adjusting bolt on
each side of the swingarm in di-
rection (b), and then push the rear
wheel forward. NOTICE: Improp-
er drive chain slack will over-
loa d the en gine as well as other
vital parts of the motorcycle an d
can lead to chain slippa ge or
b reakag e. To prevent this from
occurrin g, keep the drive chain
slack within the specifie d limits.
[ECA10572]
TIPUsing the alignment marks on each
side of the swingarm, make sure that
both drive chain pullers are in the same
position for proper wheel alignment.
3. Tighten the axle nut, then the lock-
nuts to their specified torques.
4. Make sure that the drive chain pullers are in the same position,
the drive chain slack is correct,
and the drive chain moves
smoothly.
5. Install the drive chain puller caps.
1. Axle nut
2. Locknut
3. Drive chain puller cap
2
1
3
1. Drive chain slack adjusting nut
1. Alignment marks
2. Drive chain puller
1
(a)(b)
1
2
Ti
ghtenin g torques:
Axle nut: 57 Nm (5.7 m·kgf, 41 ft·lbf)
Locknut:
16 Nm (1.6 m·kgf, 12 ft·lbf)
UB02E0E0.book Page 23 Thursday, January 15, 2015 3:39 PM