Mercury 250 XS OptiMax, Operation, Maintenance & Installation Manual, Page: 8 / 131

Features and Controls
Remote Control Features................................................................................. 27
Zero Effort Control Features............................................................................. 28
Warning System............................................................................................... 28
Power Trim and Tilt...........................................................................................30
Power Trim Operation ......................................................................................30
Power Tilt Operation (Single‑Ram Systems).................................................... 32
Power Tilt Operation (Three‑Ram Trim Systems)............................................ 32
Auxiliary Tilt Switch........................................................................................... 33
Manual Tilt Operation....................................................................................... 33
Operation
Important Information........................................................................................35
Engine Break‑in................................................................................................ 35
Engine Break‑in Fuel Mixture........................................................................... 36
Prestarting Check List.......................................................................................36
Operating in Freezing Temperatures................................................................ 36
Operating in Saltwater or Polluted Water......................................................... 37
Operating at High Elevations............................................................................ 37
Effects of Elevation and Weather on Performance........................................... 37
Setting Trim Angle While Running Engine at Idle Speed................................. 38
Operating in Shallow Water.............................................................................. 38
Oil Injection System.......................................................................................... 39
Starting the Engine........................................................................................... 41
Gear Shifting..................................................................................................... 44
Stopping the Engine......................................................................................... 44
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