Yamaha YZFR1Y(C) 2009 Service Manual page 323

ECA14B1040
If the projection "a" of the piston installing
tool damages, you cannot use it. Please
handle with care.
TIP
Fit the projection "a" of the piston installing tool
"3" and blunt-edged part "b" of the cylinder, fix
the position of the piston installing tool, and
then push the piston down to the cylinder.
8. Install:
• Big end bearings
(onto the connecting rods and connecting
rod caps)
• Cylinder gasket New
• Dowel pin
• Cylinder assembly
• Connecting rod caps
• Connecting rod bolts
TIP
• Align the projections "a" on the big end bear-
ings with the notches "b" in the connecting
rods and connecting rod caps.
• Be sure to reinstall each big end bearing in
its original place.
• Make sure the "Y" marks "c" on the connect-
ing rods face towards the left side of the
crankshaft.
• Make sure the characters "d" on both the
connecting rod and connecting rod cap are
aligned.
• Apply Molybdenum disulfide oil to the bear-
ing surface of the connecting rod bolt and
connecting rod cap.
CONNECTING RODS AND PISTONS
New
5-82
9. Tighten:
• Connecting rod bolts "1"
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EWA14B1015
WARNING
Replace the connecting rod bolts with new
ones.
TIP
Tighten the connecting rod nuts using the fol-
lowing procedure.
a. Tighten the connecting rod bolts with a
torque wrench.
Connecting rod bolt (1st)
20 Nm (2.0 m·kgf, 14 ft·lbf)
b. Put a mark "1" on the corner of the con-
necting rod bolt "2" and the connecting rod
cap "3".