torque YAMAHA YFZ450 2005 User Guide

8-59 a. Spark plug gap
a.Écartement des électrodes
a. Huelgo de la bujía
Installation
1. Measure the electrode gap with a wire thick-
ness gauge and, if necessary, adjust the gap
to specification.
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 and tighten it to the
specified torque. Specified spark plug:
CR8E (NGK)
Spark plug gap:
0.7–0.8 mm
Tightening torque:
Spark plug:
12.5 Nm (1.25 m·kgf)
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8-61
NOTE:_ If a torque wrench is not available when you are in-
stalling a spark plug, a good estimate of the correct
torque is 1/4 to 1/2 turn past finger tight. Have the
spark plug tightened to the specified torque as
soon as possible. _4. Install the spark plug cap.CAUTION:_ Do not use any tools to remove or install the
spark plug cap, otherwise the ignition coil cou-
pler may be 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, twist it back
and forth while pushing it in. _5. Place the fuel tank in the original position,
and then install the bolt.
6. Remove the fuel tank cap by turning it coun-
terclockwise.
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8-95
5. Screw in the adjusting bolt at the rear brake
caliper by hand until it feels tight, then screw it
out 1/8 turn. Tighten the locknut to the speci-
fied torque.CAUTION:_ When tightening the locknut, hold the adjust-
ing bolt with a wrench so that the adjusting
bolt does not turn together with the locknut. _
WARNING
_ Operating with improperly adjusted brakes
could cause the brakes to malfunction, result-
ing in reduced braking performance. This
could increase the chance of a collision or ac-
cident. After adjusting the parking brake, block
the rear of the machine off the ground and spin
the rear wheels. Check to make sure there is
no brake drag. If brake drag is noticed, perform
the adjustment again. _
Tightening torque:
Locknut:
16 Nm (1.6 m·kgf)
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8-105
NOTE:_ There are alignment marks on each side of the
swingarm and on the hub. Use them to check for
proper wheel axle alignment. _3. After adjusting, tighten the locknuts and the
wheel hub nuts to the specified torques.
Tightening torques:
Locknut:
16 Nm (1.6 m·kgf)
Upper wheel hub nut:
85 Nm (8.5 m·kgf)
Lower wheel hub nut:
85 Nm (8.5 m·kgf)
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8-123 1. Arrow mark
1. Flèche
1. Flecha
Front
Avant
Delantero
EBU14031
Wheel installation
When installing the wheel, reverse the removal
procedure.NOTE:_ The arrow mark on each front tire must point
toward the rotating direction of the wheel. _Tighten the wheel nuts to the specified torque.
Wheel nut torque:
Front: 45 Nm (4.5 m·kgf)
Rear: 45 Nm (4.5 m·kgf)
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11-1
EBU10700
Conversion tableACS-02EAll specification data in this manual are listed in SI
and METRIC UNITS.
Use this table to convert METRIC unit values to
IMPERIAL unit values.
Example:
METRIC
VALUECONVERSION
FACTORIMPERIAL
VALUE
2 mm× 0.03937 = 0.08 in
Conversion table
METRIC SYSTEM TO IMPERIAL SYSTEM
Metric unitConversion
factorImperial unit
Torquem·kgf
m·kgf
cm·kgf
cm·kgf
× 7.233× 86.794× 0.0723× 0.8679ft·lbf
in·lbf
ft·lbf
in·lbf
Weightkg
g× 2.205× 0.03527lb
oz
Speed km/h× 0.6214 mi/h
Distancekm
m
m
cm
mm× 0.6214× 3.281× 1.094× 0.3937× 0.03937mi
ft
yd
in
in
Volume,
Capacitycc (cm
3)
cc (cm3)
L (liter)
L (liter)
× 0.03527× 0.06102× 0.8799× 0.2199oz (IMP liq.)
cu·in
qt (IMP liq.)
gal (IMP liq.)
Miscellaneouskg/mm
kgf/cm
2
°
C
× 55.997× 14.2234× 1.8 + 32 lb/in
psi (lbf/in
2)
°
F
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