Yamaha 2012 TMAX XP500A Service Manual page 342

• Make sure the characters "d" on both the
connecting rod and connecting rod cap are
aligned.
4. Tighten:
• Connecting rod nuts
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EWA59C1502
WARNING
Replace the connecting rod bolts and nuts
with new ones.
TIP
Tighten the connecting rod nuts using the fol-
lowing procedure.
a. Tighten the connecting rod nuts with a
torque wrench.
Connecting rod nut (1st)
16 Nm (1.6 m·kgf, 12 ft·lbf)
b. Put a mark "1" on the corner of the con-
necting rod nut "2" and the connecting rod
cap "3".
c. Tighten the connecting rod nuts further to
reach the specified angle 90°.
Connecting rod nut (2nd)
Specified angle 90°
EWA13400
WARNING
If the connecting rod nut is tightened more
than the specified angle, do not loosen the
nut and then retighten it. Instead, replace
the connecting rod bolt and nut with a new
one and perform the procedure again.
ECA4B51019
• Do not use a torque wrench to tighten the
connecting rod nut to the specified angle.
• Tighten the nut until it is at the specified
angle.
TIP
On a hexagonal nut, note that the angle from
one corner to another is 60°.
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5. Install:
• Balancer big end bearings
• Balancer connecting rod
• Balancer connecting rod cap
(onto the crankshaft pin)
TIP
• Align the projections "a" on the balancer big
end bearings with the notches "b" in the bal-
ancer connecting rod and balancer connect-
ing rod cap.
• Be sure to reinstall each balancer big end
bearing in its original place.
• Make sure the "Y" marks "c" on the balancer
connecting rod face towards the left side of
the crankshaft.
5-81
CRANKSHAFT