Mercury Optimax 115, 135, 150, 175, DFI year 2000 and up service manual., Page 453Get this manual
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POWER TRIMDESIGN II
11 Run trim "UP"The minimum pressure should be 2000 P.S.I(140.6 kgcm2)12 Run trim "DOWN" to release pressure and remove spare tilt pin or bolts and nuts13 Tilt outboar