Yamaha VMX12 2001 Service Manual page 214

È
CONNECTING RODS AND PISTONS
4 - 84
6. Attach:
• piston ring compressors 1
Piston ring compressor
90890-05158
7. Install:
• connecting rod and piston assembly
NOTE:
• The stamped "Y" mark 2 on the No. 2 and
No. 4 connecting rods should face towards
the right side of the crankcase.
• The stamped "Y" mark 2 on the No. 1 and
No. 3 connecting rods should face towards
the left side of the crankcase.
È Top view
3
Front
4
"Y" mark facing direction
5
Piston exhaust mark
6
Piston intake mark
8. Align:
• bolt heads 1
(with the connecting rod caps)
9. Tighten:
• connecting rod nuts
CAUTION:
@
• When tightening the connecting rod nuts,
be sure to use an F-type torque wrench.
• Without pausing, tighten the connecting
rod nuts to the specified torque. Apply con-
tinuous torque between 3.0 and 3.6 m • kg.
Once you reach 3.0 m • kg DO NOT STOP
TIGHTENING until the specified torque is
reached. If the tightening is interrupted
between 3.0 and 3.6 m • kg, loosen the
connecting rod nut to less than 3.0 m • kg
and start again.
@
ENG
36 Nm (3.6 m · kg)