1986-1987 Honda TRX350 FourTrax 4X4, 1987-1989 TRX350D Foreman 4X4 Service Manual, Page 91Get this manual
CYLINDERPISTON NOTE Avoid piston and piston ring damage during installationInstall the piston rings with the ma rkings (T or Al facing upDo not mix the top and second rings
Space the piston ring end gaps 120 degrees apartDo not align the gaps in the oil rings (side rails), After installation, the rings should rotate freely in the ring grooves