Mercury Optimax 115, 135, 150, 175, DFI year 2000 and up service manual., Page 454Get this manual
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POWER TRIMDESIGN II
4 Install test adaptor 91-822778A3 into manual release valve hole54458
aTest Adaptor (91-822778A3)
Page 5C-36
90-859494R1 JUNE 2