Honda BF115A, BF130A Outboard Motors Shop Manual., Page 239Get this manual
HONDA BF115A-130A
5PISTON
aDISASSEMBLYIASSEMBLY
After installing the pistons and connecting rods in the cylinder block, secure the rods to the crankshaft
141 TOP RING
ASSEMBLY: Chrome platedDo not interchange with SECOND RING
MAKERMARK
ISTON RINGS INSPECTION: P17-18 and 19 ASSEMBLY:Install with the maker mark facing upward as shownDo not interchange the top ring and the second ringAfter assembly, check for smooth movement of the piston ringStagger the piston ring end gaps 120' apartDo not align with piston pin
151-1 TOP RING (CHROME PLATED)