Suzuki GW250 Service Manual page 135

• Place a clean rag over the cylinder base so as not to drop the
piston pin circlip 2 into the crankcase.
• Install a piston pin circlip 2.
NOTE:
End gap of the circlip 2 should not be aligned with the cutaway
in the piston pin bore.
CYLINDER
• Install the dowel pins and new gasket 1 to the crankcase.
• Apply a small quantity of molybdenum oil solution to the slid-
ing surface of the pistons, piston ring sets and cylinder walls.
 MOLYBDENUM OIL SOLUTION
• Hold the piston rings in proper position, and insert each of the
pistons into the respective cylinder 2.
NOTE:
When mounting the cylinder, keep the cam chain 3 taut.
• Tighten the cylinder nuts 4 temporarily.
CYLINDER HEAD
• Install the cam chain guide 1.
NOTE:
There are the guide holder for the bottom end of cam chain
guide cast in the crankcase. Be sure that the cam chain guide
are inserted properly.
• Fit the dowel pins 2 and new gasket 3 to the cylinder.
ENGINE 3-87