2009-2010 Suzuki DF70A DF80A DF90A Outboard Service Manual, Page 157Get this manual
Power Unit Mechanical: 2) Install the piston rings Apply engine oil to piston ring Install 2nd ring (3) and 1st ring (4) to piston 1D-46
Piston to cylinder 1) Install conrod bearing (1) to conrod (2) and cap (3)CAUTION Assemble each conrod bearing to it's original position Do not apply oil between conrod and bearing or between bearing cap and bearing
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NOTE 1st ring (4) and 2nd ring (3) differ in shape and color as shown in figure Also indicated in figure, the 1st and 2nd ring are marked "C" with the letter "R" or "RN" which must face towards top of piston1
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