Removal - Yamaha RS90GTZ Service Manual

CONNECTING RODS AND PISTONS
5-66

REMOVAL

1. Remove:
• Connecting rod cap
• Big end bearings
TIP
Identify the position of each big end bearing so
that it can be reinstalled in its original place.
2. Remove:
• Piston pin clips
• Piston pin
• Piston
• Connecting rod
NOTICE
Do not use a hammer to drive the piston
pin out.
TIP
• For reference during installation, put identifi-
cation mark on each piston crown.
• Before removing the piston pin, deburr the
piston pin clip groove and the piston pin bore
area. If both areas are deburred and the pis-
ton pin is still difficult to remove, remove it
with the piston pin puller (piston pin puller set)
.
Piston pin puller:
YU-01304
Piston pin puller set:
90890-01304
3. Remove:
• Top ring
• 2nd ring
• Oil ring
TIP
When removing a piston ring, open the end
gap with your fingers and lift the other side of
the ring over the piston crown.
ENG