Yamaha YZF-R1 2020 Service Manual page 370

2
TIP
Align the piston pin clip end with the position "a".
b. Push the piston pin clip insertion tool "3" in
the direction as shown in the illustration
and place the piston pin clip into the piston
pin bore.
TIP
Push in the piston pin clip insertion tool while
holding it parallel with the upper surface of the
piston and rear surface of the piston pin clip in-
sertion tool.
Piston pin clip insertion tool
90890-04173
YM-04173
c. Install the piston pin clip to the piston by
pressing the portion "b" on the piston pin
clip insertion tool "3" in the direction shown
in the illustration.
a
1
3
CONNECTING RODS AND PISTONS
b
3
d. Make sure the piston pin clip "1" is posi-
tioned as shown in the illustration.
e. Install the piston pin clip installer tool "4"
onto the piston.
Piston pin clip installer tool
90890-04174
YM-04174
f. While holding the piston clip installer tool,
turn it counterclockwise "c", to completely
install the piston pin clip in the piston.
c
g. Make sure that the piston pin clip "1" is in
the groove "d".
5-87
1
4