Cylinder Head And Exhaust Cover - Yamaha 50G Service Manual

POWR
ASSEMBLY AND ADJUSTMENT
Å
Å
ı
Ç
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G75000-0*
CYLINDER HEAD AND EXHAUST
COVER
1. Install the gaskets cylinder-head cover
and exhaust cover.
2. Tighten the bolts to the specified torque
in sequence and in two steps.
Å Tightening sequence
Cylinder head (50, 60, 70 hp):
1st step:
15 Nm (1.5 m • kg, 11 ft • lb)
2nd step:
32 Nm (3.2 m • kg, 23 ft • lb)
Cylinder-head (75, 80, 90 hp):
1st step:
15 Nm (1.5 m • kg, 11 ft • lb)
2nd step:
30 Nm (3.0 m • kg, 22 ft • lb)
ı Tightening sequence
Ç Tightening sequence
Exhaust cover (50, 60, 70 hp):
1st step:
3 Nm (0.3 m • kg, 2.2 ft • lb)
2nd step:
8 Nm (0.8 m • kg, 5.8 ft • lb)
Exhaust cover (75, 80, 90 hp):
1st step:
9 Nm (0.9 m • kg, 6.5 ft • lb)
2nd step:
18 Nm (1.8 m • kg, 13 ft • lb)
3. Install the thermostat, gasket and cover.
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