Removing The Cylinders And Pistons; Checking The Cylinders And Pistons - Yamaha XV1600A1999 Service Manual

CYLINDERS AND PISTONS
EAS00254

REMOVING THE CYLINDERS AND PISTONS

The following procedure applies to all of the cyl-
inders and pistons.
1. Remove:
S piston pin clip 1
S piston pin 2
S piston 3
CAUTION:
Do not use a hammer to drive the piston pin
out.
NOTE:
S Before removing the piston pin clip, cover the
crankcase opening with a clean rag to prevent
the piston pin clip from falling into the crank-
case.
S For reference during installation, put an identi-
fication mark on each piston crown.
S Before removing the piston pin, deburr the pis-
ton pin clip's groove and the piston's pin bore
area. If both areas are deburred and the piston
pin is still difficult to remove, remove it with the
piston pin puller 4 .
2. Remove:
S top ring
S 2nd ring
S oil ring
NOTE:
When removing a piston ring, open the end gap
with your fingers and lift the other side of the ring
over the piston crown.
EAS00258

CHECKING THE CYLINDERS AND PISTONS

The following procedure applies to all of the cyl-
inders and pistons.
1. Check:
S piston wall
S cylinder wall
Vertical scratches ! Replace the cylinder,
and the piston and piston rings as a set.
5-54
ENG
Piston pin puller set
90890-01304