Honda BF115A, BF130A Outboard Motors Shop Manual., Page 232Get this manual

HONDA BFI 15A-130A
PISTON ASSEMBLY
INSTALLATION: Install the piston assembly with the "IN" mark on the piston head faces to the intake manifoldUse commercially available mark toward piston ring compressor and install with the UP
111 PISTON RING

141 INTAKE MANIFOLED SIDE

• ATV
• Jet Ski
• Outboard Motors
• Personal Watercraft
• Snowmobiles
• Stern Drives