Yamaha FZ6-N 2004, Service Manual

Page: 41 / 77

–33–
CONNECTING RODS AND PISTONS
ENG
NOTE:
15 Nm (1.5 m
S
kg, 11 ft
S
lb) + 150
_
CAUTION:
4. Offset:
S
piston ring end gaps
a Top ring
b Lower oil ring rail
c Upper oil ring rail
d 2nd ring
e Oil ring expander
5. Lubricate:
S
crankshaft pins
S
big end bearings
S
connecting rod big end inner surface
(with the recommended lubricant)
Recommended lubricant
Engine oil
6. Install:
S
big end bearings
S
connecting rod assembly
(into the cylinder and onto the crankshaft pin)
S
connecting rod cap
(onto the connecting rod)
S
Align the projections on the big end bearings
with the notches in the connecting rods and
connecting rod caps.
S
Be sure to reinstall each big end bearing in its
original place.
S
While compressing the piston rings with one
hand, install the connecting rod assembly into
the cylinder with the other hand.
S
Make sure that the “Y” marks
a
on the con-
necting rods face towards the left side of the
crankshaft.
S
Make sure that the characters b on both the
connecting rod and connecting rod cap are
aligned.
7. Align:
S
bolt heads
(with the connecting rod caps)
8. Tighten:
S
connecting rod nuts
a. Replace the connecting rod bolts and nuts
with new ones.
Tighten the connecting rod bolts using the
plastic-region tightening angle method.
Always install new bolts and nuts.