Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 419Get this manual

Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 419

NONBIGFOOT GEAR HOUSING
2-Stroke Models
MERCURYMARINER 3040, AND 4050, FORCE 4050
6Reconnect shift shaft with coupler nut and jam nutTighten jam nut against coupler nutNOTE: After reconnecting shift shaft, bottom of jam nut should be approximately flush with top of spray plate)