Yamaha RST90GTY Service Manual page 220

TIP
*1: Tighten the cylinder head bolts to 25 Nm (2.5 m · kg, 18 ft · lb) in the proper tightening sequence, loosen
and retighten the cylinder head bolts to 25 Nm (2.5 m · kg, 18 ft · lb) in the proper tightening sequence,
and then tighten the cylinder head bolts further to reach the specified angle 175 ~ 185° in the proper tight-
ening sequence.
*2: Tighten the crankcase bolts to 15 Nm (1.5 m · kg, 11 ft · lb) in the proper tightening sequence, loosen and
retighten the crankcase bolts to 15 Nm (1.5 m · kg, 11 ft · lb) in the proper tightening sequence, and then
tighten the crankcase bolts further to reach the specified angle 85 ~ 90° in the proper tightening
sequence.
*3: Tighten the crankcase bolts to 15 Nm (1.5 m · kg, 11 ft · lb) in the proper tightening sequence, loosen and
retighten the crankcase bolts to 15 Nm (1.5 m · kg, 11 ft · lb) in the proper tightening sequence, and then
tighten the crankcase bolts further to reach the specified angle 65 ~ 70° in the proper tightening
sequence.
*4: Tighten the connecting rod nuts to 20 Nm (2.0 m · kg, 14 ft · lb), and then tighten the connecting rod nuts
further to reach the specified angle 115 ~ 125°.
TIGHTENING TORQUE
97
SPEC