Suzuki GW250 Service Manual page 136

3-88 ENGINE
• Place the cylinder head 4 on the cylinder.
NOTE:
When installing the cylinder head, keep the cam chain taut.
• Apply engine oil to the washers A and thread portion of the
bolts before installing the cylinder head bolts.
• The conical curve side of washers A faces upside.
• Tighten the cylinder head bolts to the specified torque and
diagonally.
 Cylinder head bolt: 25 N·m (2.5 kgf-m, 18.0 lbf-ft)
• Tighten the cylinder side bolts 5 to the specified torque.
 Cylinder side bolt: 10 N·m (1.0 kgf-m, 7.0 lbf-ft)
• Apply engine coolant to new O-ring 6 of water inlet connector
7.
• Install the cam chain tensioner 8 on the cylinder head.
• Tighten the cam chain tensioner bolts 9 to the specified
torque.
 Cam cain tensioner bolt: 10 N·m (1.0 kgf-m, 7.0 lbf-ft)