Mercury Mariner Service Manual 6, 8, 9.9 210CC Sailpower, Page 142Get this manual
Rotate tiller handle to reverse position The wire cable end that travels outward (a) when handle is rotated to reverse gets installed in the inner groove on cable gear as shown Place cable (b) into mounting bracket Tiller Handle Removal and Disassembly
Disconnect stop switch wires (a) from switch box (b)Remove tiller handle assembly (a) from engine; refer to "Removal" portion of "Control Cable Replacement", preceding