Yamaha R1 Series 2015 Service Manual page 418

TIP
Install by carrying out the following procedures in
order to assemble in the most suitable condition.
f. Tighten the connecting rod bolt while check-
ing that the sections shown "a" and "b" are
flush with each other by touching the surface.
Connecting rod bolt
30 Nm (3.0 m·kgf, 22 ft·lbf)
TIP
To install the connecting rod cap, care should be
taken not to install it at an angle and the position
should not be out of alignment.
a. Side machined face
b. Thrusting faces
g. Loosen the connecting rod bolt, remove the
connecting rod and connecting rod cap and
install these parts to the crankshaft with the
big end bearing kept in the current condition.
TIP
• Do not move the connecting rod or crankshaft
until the clearance measurement has been
completed.
• Make sure that the projection "a" on the con-
necting rod cap faces the same direction as the
"Y" or " " mark "b" on the connecting rod.
• Make sure the "Y" or " " marks "b" on the con-
necting rods face towards the left side of the
crankshaft.
• Install the connecting rod so that the Plasti-
gauge® is in position "c" or "d".
b
a
CONNECTING RODS AND PISTONS
a
h. Tighten the connecting rod bolts with a torque
wrench.
Connecting rod bolt (1st)
i. Put a mark "1" on the corner of the connecting
rod bolt "2" and the connecting rod cap "3".
j. Tighten the connecting rod bolts further to
reach the specified angle 175 –185 with
torque wrench, and then confirm that the
torque value is within the range of 40 Nm (4.0
m·kgf, 29 ft·lbf) to 85 Nm (8.5 m·kgf, 61 ft·lbf)
with keeping the torque wrench 175 –185 . If
torque is out of range, replace the connecting
rod bolt to new one and repeat from step h.
Connecting rod bolt (final)
5-77
b
d
c
25 Nm (2.5 m·kgf, 18 ft·lbf)
Specified angle 175 –185