Suzuki UY125 Service Manual page 100

3-66 ENGINE
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When installing the spacer, be careful not to allow its
two ends to overlap in the groove.
• Top ring and 2nd ring differ in the shape of ring face, and the
face of top ring is chrome-plated whereas that of 2nd ring is
not. The color of 2nd ring appears darker than that of the top
one.
• The 1st and 2nd piston rings should be installed with their
marks facing up.
• Position the gaps of the three rings as shown.
NOTE:
Before inserting piston into the cylinder, check that the gaps are
so located.
PISTON
• Rub a small quantity of molybdenum oil solution onto the pis-
ton pin.
• Place a clean rag over the cylinder base to prevent the piston
pin circlips from dropping into the crankcase.
• Install the piston with the arrow mark A facing towards the
exhaust side.
) MOLYBDNUM OIL SOLUTION
INCORRECT
CORRECT
• 2nd ring
• Lower side rail
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Top
2nd
• Upper side rail
• Top ring
• Spacer