Mercury 150 Operation, Maintenance And Installation Manual page 104

On counterrotation outboards, the shift linkage moves in the opposite direction
compared to a standard rotation outboard.
Forward Gear
Reverse Gear
INSTALLING THE SHIFT CABLE
IMPORTANT: The shift cable is the first cable to move when the remote control
handle is moved out of neutral, so install/connect it to the engine first.
Locating the Center Point of the Shift Cable
IMPORTANT: Locate the center point of the slack or lost motion that exists in
the shift cable for proper adjustment of the shift cable.
1. Mark the forward position as follows:
a. Move the remote control handle from neutral into forward and advance
the handle to the full speed position. Ensure that the throttle control
lever is touching the throttle control lever stop screw.
b. Slowly return the handle back to the neutral detent position.
OUTBOARD INSTALLATION
Standard Rotation
Counterrotation
Reverse Gear
Forward Gear
94
7724
7726
eng