Cylinder Head And Exhaust Cover - Yamaha 25J Manuel D'entretien

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POWR
Å
ASSEMBLY AND ADJUSTMENT
Å
ı
5. Match the crank case and tighten the
bolts in sequence and in two steps of
torque.
Å Tightening sequence
1st step:
M8: 15 Nm (1.5 m • kgf, 11 ft • lb)
M6: 5 Nm (0.5 m • kgf, 3.6 ft • lb)
2nd step:
M8: 28 Nm (2.8 m • kgf, 20 ft • lb)
M6: 11 Nm (1.1 m • kgf, 8.0 ft • lb)
6. Check
that
smoothly.
G75004-0
CYLINDER HEAD AND EXHAUST
COVER
1. Install the new gaskets, cylinder-head
cover and exhaust cover.
CAUTION:
Do not apply any sealing compound to gas-
ket.
2. Tighten the bolts in two sequence and
in two steps of torque.
Å Tightening sequence
Cylinder head:
1st step:
15 Nm (1.5 m • kgf, 11 ft • lb)
2nd step:
28 Nm (2.8 m • kgf, 20 ft • lb)
ı Tightening sequence
Exhaust cover:
1st step:
3 Nm (0.3 m • kgf, 2.2 ft • lb)
2nd step:
8 Nm (0.8 m • kgf, 5.8 ft • lb)
3. Install the thermostat, gasket and cover.
5-13
the
crankshaft
E
turns

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30d25x30x

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