1990 Johnson Evinrude "ES" 40 thru 55, P/N 507872, Page 222Get this manual
COA3590
COA3591
49 9Align hole in the clutch dog with slot in the propeller shaftInstall the clutch dog on the shaft with grooved end of the clutch dog facing forward end of the shaft
50 10Insert the shifter shaft into the propeller shaft aligning
holes in the shifter shaft, propeller shaft, and clutch dogWhen holes are aligned, insert the clutch dog pin into the clutch dog and shifter shaftSecure pin with new retainer springMake certain no coils of the spring overlap
11Push the shifter detent down into the REVERSE positionbearing housing with the shifter detent CD toward the topBe sure the thrust bearing and thrust washer are properly positionedInsert the propeller shaft assembly into the gearcase as far as possible, being sure to align the shift housing pin with hole in forward end of gearcase housing
f511 12Locate the propeller shaft assembly and align the forward