Removing The Connecting Rods And Pistons - Yamaha YZF-R6 99 Service Manual

CONNECTING RODS AND PISTONS
4-68
EAS00393
REMOVING THE CONNECTING RODS AND
PISTONS
The following procedure applies to all of the
connecting rods and pistons.
1. Remove:
S connecting rod cap 1
S big end bearings
NOTE:
Identify the position of each big end bearing so
that it can be reinstalled in its original place.
2. Remove:
S piston pin clips 1
S piston pin 2
S piston 3
S connecting rod
CAUTION:
Do not use a hammer to drive the piston pin
out.
NOTE:
S For reference during installation, put identifi-
cation marks on the piston crown.
S Before removing the piston pin, deburr the pis-
ton pin clip groove and the piston pin bore area
in the piston. If both areas are deburred and
the piston pin is still difficult to remove, remove
it with the piston pin puller 4 .
Piston pin puller
90890-01304
3. Remove:
S top ring
S 2nd ring
S oil ring
NOTE:
To remove a piston ring, open the end gap with
your fingers and lift the other side of the ring
over the piston crown.
ENG