Repair on 86 Johnson lower unit

[fish3052]

How is the lower unit of 86 johnson 50hp installed correctly so the gear shifts properly?

 

[joereeves]

With the lower unit assembled and on the work bench, have the unit in neutral, then adjust the shift rod as follows:
1986 - 40, 45, 50, 55hp = (S) 15-29/32" - - (L) 40, 45, 50, 55hp = 20-29/32" plus/minus 1/32" Have the shift rod in neutral and the offset to the rear.