Mercury Mariner 200, 225 Optimax Outboards Service Manual, 90-855348, Page 302Get this manual
Troubleshooting IMPORTANT: Determine if Electrical or Hydraulic problem existsHYDRAULIC SYSTEM TROUBLESHOOTING IMPORTANT: Make one correction at timeCheck operation of trim system before proceeding to the next checkCONDITION OF TRIM SYSTEM PROBLEM
ATrim motor runs; trim system does not move up or downBDoes not trim full downUp trim OKCDoes not trim full upDown trim OKDPartial or "Jerky" downup
1,2,5,10 2,3,4 1,6 1,3 2,3,6,7 5,8,9,10 2,5,6 3,4 2, 5, 8,9 1,2,8,9 3,4 3,4
E"Thump" noise when shiftingFDoes not trim under loadGDoes not hold trim position under loadHTrail out when backing off from high speedILeaks down and does not hold trimJTrim motor working hard and trims slow up and downKTrims up very slow