Honda BF20 BF2A Outboard Motors Manual, Page 41Get this manual
HONDA BFSO-BFSA
[PISTON PIN CLIPS
REASSEMBLY: Install by setting one end of the clip the piston groove, holding the ither end with long-nosed pliers, and otating the clip inDo not align the 2nd gap of the clip with the cut-out the piston pin bore
[2] PISTON RINGS
REASSEMBLY: Install with marking facing upPosition the rings so that the end gaps are staggered or equally spaced at 120-deg intervals and are away from piston pin axis
[I] PISTON -2 CLIP
[31 CONNECTING ROD
1 Install rod with longer end "A" mark on the piston headTIMING GEAR DISASSEMBLY:
Mark line on the crankshaft and the timing gear showns Use hydraulic press to remove the timing gear