Yamaha R1 Series 2015, Service Manual

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FRONT FORK (for YZF-R1)
4-83
EAS30208
CHECKING THE FRONT FORK LEGS (for
YZF-R1)
The following procedure applies to both of the
front fork legs.
1. Check:
•
Inner tube “1”
• Outer tube “2”
Bends/damage/scratches
o
Replace.
WARNING
EWA13650
Do not attempt to straighten a bent inner
tube as this may dangerously weaken it.
2. Measure:
•
Spring free length “a”
Out of specification
o
Replace.
3. Check:
• Damper rod “1”
Damage/wear
o
Replace.
Obstruction
o
Blow out all of the oil passag-
es with compressed air.
NOTICE
ECA19110
• The front fork leg has a very sophisticated
internal construction, which are particular-
ly sensitive to foreign material.
• When disassembling and assembling the
front fork leg, do not allow any foreign ma-
terial to enter the front fork.
4. Check:
•
Cap bolt “1”
• Cap bolt collar projection “2”
Cracks/damage
o
Replace.
EAS30209
ASSEMBLING THE FRONT FORK LEGS (for
YZF-R1)
The following procedure applies to both of the
front fork legs.
WARNING
EWA17090
• Note that the amount of the fork oil is differ-
ent in the left and right front fork legs. Make
sure to fill each of the left and right front
fork legs with the specified amount of the
fork oil.
• If both front fork legs are not filled with the
specified amount of the fork oil, it may
cause poor handling and a loss of stability.
TIP
• When assembling the front fork leg, be sure to
Fork spring free length
YZF-R1 217.5 mm (8.56 in)
1
1
2