Yamaha YZF-R6 99 Service Manual page 205

CONNECTING RODS AND PISTONS
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b. Clean the connecting rod bolts and nuts.
c. Tighten the connecting rod nuts.
d. Put a mark 1 on the corner of the connecting
rod nut 2 and the connecting rod 3 .
e. Tighten the nut further to reach the specified
angle (90_).
WARNING
When the nut is tightened more than the
specified angle, do not loosen the nut and
then retighten it.
Replace the bolt with a new one and perform
the procedure again.
CAUTION:
S Do not use a torque wrench to tighten the
nut to the specified angle.
S Tighten the nut until it is at the specified
angles.
NOTE:
When using a hexagonal nut, note that the
angle from one corner to another is 60_.
ENG