INSTRUMENT AND CONTROL FUNCTIONS
3-19
33. Tighten the lock screw to thespecified torque.
Re boun d d ampin g force
To increase the rebound damping
force and thereby harden the rebound
damping, turn the adjusting knob in di-
rection (a). To decrease the rebound
damping force and thereby soften the
rebound damping, turn the adjusting
knob in direction (b). Compression
dampin g force
To increase the compression damping
force and thereby harden the com-
pression damping, turn the adjusting
knob in direction (a). To decrease the
compression damping force and there-
by soften the compression damping,
turn the adjusting knob in direction (b).
1. Special wrench
2. Spring preload adjusting ring
1. Distance A
Sprin g preloa d setting :
Minimum (soft):
Distance A = 0 mm (0 in)
Standard:
Distance A = 17 mm (0.67 in)
Maximum (hard): Distance A = 28 mm (1.10 in)
Ti ghtenin g torque:
Lock screw:
0.1 Nm (0.01 m·kgf, 0.07 ft·lbf)
1. Rebound damping force adjusting knobRe boun d d ampin g setting :
Minimum (soft): 36 click(s) in direction (b)*
Standard: 10 click(s) in direction (b)*
Maximum (hard):
1 click(s) in direction (b)*
* With the adjusting knob fully turned in direction (a)
U2PNE0E0.book Page 19 Tuesda y, September 16, 2014 4:15 PM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-2
6
EAU17382
Owner’s tool kitThe owner’s tool kit is located under
the seat. (See page 3-15.)
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
1
U2PNE0E0.book Page 2 Tuesday, September 16, 2014 4:15 PM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-9
6
EAU19643
Checking the spark plu gsThe 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.
Specifie
d spark plu g:
NGK/DPR8EA-91. Spark plug gapSpark plu g g ap:
0.8–0.9 mm (0.031–0.035 in)
Ti ghtenin g torque:
Spark plug: 18 Nm (1.8 m·kgf, 13 ft·lbf)
U2PNE0E0.book Page 9 Tuesday, September 16, 2014 4:15 PM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-12
6
13. Install the engine oil filter element
cover (together with the spring,
washer and oil filter element) by
aligning the projection on the cov-
er with the slot in the crankcase,
and then tightening the bolt to the
specified torque.
14. Install the oil filter element drain screw and its new gasket, and
then tighten the screw to the
specified torque. 15. Install the drive sprocket cover by
placing it in the original position
and installing the bolts.
16. Install the engine oil drain bolt and its new gasket, and then tighten
the bolt to the specified torque.
17. 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
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 dd ition, do not use oils la bele d
“ENERGY CONSERVING II” or
hi gher.
Make sure that no forei gn mate-
rial enters the crankcase.18. 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.
1. Projection
2. SlotTightenin g torque:
Oil filter element cover bolt: 15 Nm (1.5 m·kgf, 11 ft·lbf)
Tightenin g torque:
Oil filter element drain screw:
7 Nm (0.7 m·kgf, 5.1 ft·lbf)
Ti ghtenin g torque:
Engine oil drain bolt: 43 Nm (4.3 m·kgf, 31 ft·lbf)
Recommen ded en gine 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)
U2PNE0E0.book Page 12 Tuesda y, September 16, 2014 4:15 PM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-23
63. 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.
EAU23026
Cleanin g an d lu bricatin g the
d rive chainThe 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.NOTICE
ECA10584
The drive chain must b e lubricated
after washin g the motorcycle, ri din g
in the rain or ri din g in wet areas.1. Clean the drive chain with kero-
sene and a small soft brush.
NOTICE: To prevent d amaging
the O-rin gs, do not clean the
d rive chain with steam cleaners,
hi gh-pressure washers or inap-
propriate solvents.
[ECA11122]
2. Wipe the drive chain dry.
3. Thoroughly lubricate the drive chain with a special O-ring chain
lubricant. NOTICE: Do not use
en gine oil or any other lu bri-
cants for the drive chain, as they may contain su
bstances that
coul d damag e the O-rin gs.
[ECA11112]
Ti ghtenin g torques:
Axle nut: 150 Nm (15 m·kgf, 108 ft·lbf)
Locknut:
16 Nm (1.6 m·kgf, 12 ft·lbf)
U2PNE0E0.book Page 23 Tuesda y, September 16, 2014 4:15 PM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-36
6
EAU24361
Front wheel
EAU65460
To remove the front wheel
WARNING
EWA10822
To avoid injury, securely support the
vehicle so there is no dan ger of it
fallin g over.1. Loosen the front wheel axle pinch
bolt, then the wheel axle and the
brake caliper bolts. 2. Lift the front wheel off the ground
according to the procedure in the
previous section “Supporting the
motorcycle”.
3. Remove the brake hose holder on each side by removing the bolt.
4. Remove the brake caliper on each side by removing the bolts.
NOTICE: Do not apply the b rake
after the b rake calipers have
b een removed , otherwise the
b rake pad s will be forced shut.
[ECA11052]
5. Pull the wheel axle out, and then
remove the wheel. To install the front wheel
1. Lift the wheel up between the fork legs.
2. Insert the wheel axle.
3. Lower the front wheel so that it is on the ground, and then put the
sidestand down.
4. Install the brake calipers by install- ing the bolts.
TIPMake sure that there is enough space
between the brake pads before install-
ing the brake calipers onto the brake
discs.5. Install the brake hose holders byinstalling the bolts.
6. Tighten the wheel axle, the front wheel axle pinch bolt, the brake
caliper bolts and the brake hose
holder bolts to the specified
torques.
1. Brake caliper bolt
2. Front wheel axle pinch bolt
3. Wheel axle
3
2
1
1. Bolt
2. Brake hose holder
3. Brake caliper
4. Brake caliper bolt
1
4
23
1
4
23
U2PNE0E0.book Page 36 Tuesda
y, September 16, 2014 4:15 PM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-37
67. Push down hard on the handlebar
several times to check for proper
fork operation.
EAU25081
Rear wheel
EAU65470
To remove the rear wheel
WARNING
EWA10822
To avoi d injury, securely support the
vehicle so there is no dan ger of it
fallin g over.1. Loosen the axle nut and the brake
caliper bolts.
2. Disconnect the brake torque rod from the brake caliper bracket by
removing the nut and the bolt. 3. Lift the rear wheel off the ground
according to the procedure on
page 6-35.
4. Remove the axle nut and the brake caliper by removing the
bolts. NOTICE: Do not apply the
b rake after the brake caliper
has been removed , otherwise
the brake pa ds will be forced
shut.
[ECA11302]
5. Loosen the locknuts, and then turn the drive chain slack adjust-
ing bolt on each side of the swing-
arm fully in direction (a).
Tightenin g torques:
Wheel axle:
72 Nm (7.2 m·kgf, 52 ft·lbf)
Front wheel axle pinch bolt:
20 Nm (2.0 m·kgf, 14 ft·lbf)
Brake caliper bolt: 40 Nm (4.0 m·kgf, 29 ft·lbf)
Brake hose holder bolt: 7 Nm (0.7 m·kgf, 5.1 ft·lbf)
1. Axle nut
2. Brake caliper bolt
1 2
1. Brake caliper
2. Brake caliper bracket
3. Brake torque rod
4. Bolt
5. Nut
3
5
4
12
U2PNE0E0.book Page 37 Tuesda
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-38
6
6. Push the wheel forward, and then
remove the drive chain from the
rear sprocket.
TIPIf the drive chain is difficult to re-
move, remove the wheel axle first,
and then lift the wheel upward
enough to remove the drive chain
from the rear sprocket.
The drive chain does not need to
be disassembled in order to re-
move and install the rear wheel.7. While supporting the wheel and
the brake caliper bracket, pull the
wheel axle out. 8. Remove the brake caliper bracket
and the wheel.
To install the rear wheel 1. Place the wheel and the brake cal- iper bracket in the original posi-
tion.
2. Insert the wheel axle through the brake caliper bracket and wheel
from the right-hand side, and then
install the axle nut.
3. Install the drive chain onto the rear sprocket.
4. Connect the brake torque rod to the brake caliper bracket by in-
stalling the bolt and the nut.
5. Install the brake caliper by install- ing the bolts.
TIPMake sure that there is enough space
between the brake pads before install-
ing the brake caliper onto the brake
disc.6. Lower the rear wheel so that it ison the ground, and then put the
sidestand down.
7. Adjust the drive chain slack. (See page 6-22.) 8. Tighten the axle nut, brake caliper
bolts and brake torque rod nut to
the specified torques.
1. Wheel axle
2. Drive chain slack adjusting bolt
3. Locknut
1 23
(a)
Ti ghtenin g torques:
Axle nut: 150 Nm (15 m·kgf, 108 ft·lbf)
Brake caliper bolt:
40 Nm (4.0 m·kgf, 29 ft·lbf)
Brake torque rod nut: 23 Nm (2.3 m·kgf, 17 ft·lbf)
U2PNE0E0.book Page 38 Tuesda y, September 16, 2014 4:15 PM