Suzuki GSF1250 Service Manual page 232

1D-30 Engine Mechanical:
Cam Chain No.1 Guide
• Pull the cam chain out of the cylinder and install the
cam chain guide (1).
CAUTION
!
Be sure that the cam chain guide (1) is
installed properly.
Cylinder Head
• Install the dowel pins, O-ring (1) and cylinder head
gasket (2).
CAUTION
!
Replace the O-ring (1) and cylinder head
gasket (2) with new ones.
1
• Place the cylinder head (3) on the cylinder.
1
• Apply engine oil to the bolt threads and both sides of
washers.
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• Tighten the cylinder head bolts (L175) to the specified
two-step torque with a torque wrench sequentially and
diagonally.
Tightening torque
Cylinder head bolt (L175) (initial): 25 N·m (2.5 kgf-
m, 18.0 lb-ft)
Cylinder head bolt (L175) (Final): 42 N·m (4.2 kgf-
m, 30.5 lb-ft)
• After firmly tightening the cylinder head bolts (L175),
install the cylinder head bolts (L65) (4).
• Tighten the cylinder head bolts (4) to the specified
torque.
Tightening torque
Cylinder head bolt (L65) (a): 10 N·m (1.0 kgf-m,
7.0 lb-ft)
2
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NOTE
When installing the cylinder head (3), keep
the cam chain taut.
3
4
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FWD
(a)
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