Crankcase Assembly - Yamaha WaveRunner FX SHO Service Manual

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1280B
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Crankcase, connecting rod, and piston
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1280B
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Crankcase assembly

1. Install
• Dowel pin 1
• O-ring 2
NOTE:
• Thoroughly clean all the gasket surfaces and
crankcase mating surfaces.
• Apply sealant to the mating surface of the
crankcase.
• Do not get away sealant on the main bear-
ing.
2. Install:
• Crankcase bolts (M10 × 85 mm) 1
• Crankcase bolts (M6 × 70 mm) 2
CAUTION:
Do not reuse the crankcase bolts 1, al-
ways replace them with new ones.
NOTE:
Apply engine oil to the threads of the crank-
case bolts and flange surface of the crankcase
bolts.
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Installing steps:
1. Tighten the crankcase bolts 1–0 to the
specified torque in 2 stages in the
sequence shown.
NOTE:
Use a commercially available angle gauge to
tighten the bolts to the specified angle.
2. Tighten the bolts A–L to the specified
torques in the sequence shown.
Crankcase bolt 1–0:
1st: 30 N·m (3.0 kgf·m, 22.1 ft·lb)
2nd: 90°
Crankcase bolt A–L:
10 N·m (1.0 kgf·m, 7.4 ft·lb)
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