Yamaha YZF-R1 (2006) [274/426] Crankshaft

Yamaha YZF-R1 (2006) [274/426] Crankshaft
CRANKSHAFT
5-71
EAS26030
REMOVING THE CONNECTING RODS AND
PISTONS
The following procedure applies to all of the
connecting rods and pistons.
1. Remove:
Connecting rod cap “1”
Big end bearings
NOTE:
Identify the position of each big end bearing
so that it can be reinstalled in its original
place.
After removing the connecting rods and con-
necting rod caps, care should be taken not to
damage the mating surfaces of the connect-
ing rods and connecting rod caps.
2. Remove:
Cylinder
Cylinder gasket
Cylinder stud bolts
3. Remove:
Piston pin clips “1”
Piston pin “2”
•Piston3
CAUTION:
ECA4C81008
Do not use a hammer to drive the piston
pin out.
NOTE:
For reference during installation, put identifi-
cation marks on the piston crown.
Before removing the piston pin, deburr the
piston pin clip groove and the piston pin bore
area. If both areas are debarred and the pis-
ton pin is still difficult to remove, remove it
with the piston pin puller set “4”.
4. Remove:
•Top ring
2nd ring
•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.
EAS25980
REMOVING THE CRANKSHAFT ASSEMBLY
1. Remove:
Crankshaft assembly “1”
Crankshaft journal upper bearings
(from the upper crankcase)
Refer to "CRANKSHAFT" on page 5-69.
Piston pin puller set
90890-01304
Piston pin puller
YU-01304

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