Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 230Get this manual

Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 230

SHIFT LINKAGE
3Install starter lock rod and secure with snap

aStarter Lock RodSnap 4Install upper shift shaft assembly into drive shaft housing5Secure lever on shaft of shift lever with screw as shownTighten screw securely