Checking The Cylinder And Piston - Yamaha R1 Series 2015 Service Manual

Table of Contents

d. Remove the piston pin clip "1" using long-

nose pliers or a similar tool.

When removing the piston pin clip, hold the pis-

ton pin clip in place with your fingers because it

can easily spring.

▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲

• Piston pin "1"

• Piston "2"

Do not use a hammer to drive the piston pin

• For reference during installation, put identifica-

tion marks on the piston crown.

• Before removing the piston pin, deburr the pis-

ton pin clip groove and the piston pin bore ar-

ea. If both areas are deburred and the piston

CONNECTING RODS AND PISTONS

pin is still difficult to remove, remove it with the

piston pin puller set "3".

Piston pin puller set

Piston pin puller

When removing a piston ring, open the end gap

with your fingers and lift the other side of the ring

over the piston crown.

CHECKING THE CYLINDER AND PISTON

• Piston wall

• Cylinder wall

Vertical scratches

Replace the cylinder