Suzuki TU250X Service Manual page 116

• Place a clean rag over the cylinder base to prevent the piston
pin circlip from dropping into crankcase.
• Install the piston pin circlip 1.

Use new piston pin circlips to prevent circlip failure
which will occur with a bend one.
NOTE:
End gap of the circlip should not be aligned with the cutaway in
the piston pin bore.
CYLINDER
• Apply bond to the mating surfaces at the parting line between
the left and right crankcases as shown.
 99000-31110: SUZUKI BOND "1215" or equivalent
• Apply engine oil to the big end of conrod.
• Install the dowel pins (1, 2) and cylinder gasket 3.

Use the new O-rings to prevent oil leakage.
• Apply molybdenum oil solution to the cylinder wall.
 MOLYBDENUM OIL SOLUTION
• Apply engine oil to the piston rings.
• Hold each piston ring with properly position, and insert the
piston into the cylinder 4.

When inserting the piston into the cylinder, take care
not to bend the piston rings.
NOTE:
When installing the cylinder, keep the cam chain taut.
1 Dowel pin length .... 18 mm (0.71 in)
2 Dowel pin length .... 14 mm (0.55 in)
ENGINE 3-69