1992 Johnson Evinrude "EN" 90 deg. Cross V Service Manual, P/N 508145, Page 371Get this manual
Trouble Check Chart 1Tilt only leakdown Trim-up relief valve Manual release valve Ti It piston or sea Is Tilt check valve Oil lines 2Tilt and trim leakdown Trim pistons or seals Trim cylinder sleeves Trim check valve Expansion relief valve 3No reverse lock Filter valve Manual release valve Tilt piston or seals Reverse lock check valve Oil lines 4Slow performance Hydraulic pump Electric motor Trim-down relief valve Mechanical binding Expansion relief valve