Mercury 25 EFI Service Manual page 251

14. Remove the interlock cable from the horizontal shift shaft.
15. Remove the crankcase ventilation hose.
16. Remove the hose on top of the air vent assembly.
17. Remove six bolts (three each side) securing the powerhead to the driveshaft housing.
90-8M0105568 eng MARCH 2016
a
b
c
© 2016 Mercury Marine
Cylinder Block/Crankcase
a - Interlock cable
b - Upper shift shaft
c - Horizontal shift shaft
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