1988 Johnson Evinrude CC 60 thru 75 outboards Service Manual, Page 313Get this manual
Tilt Mode or Shallow Water Drive Mode
While running in the shallow water drive mode, or while the motor is tilted, the following valves and seals are pressurized and must hold pressure:
1Shock absorber valves 2Tilt piston seals
in the tilt cylinder piston