1989 Johnson/Evinrude Outboards 88 thru 110 150 thru 175 models Service RepaIr Manual P/N 507757, Page 138Get this manual
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191 _D_R_22_93 1101 D_R_22_94 STEPSENSOR COIL TEST
r,Ql2 Attach PRV meter bIack lead to port timer base connector, terminal"O Alternately attach meterred lead to starboard timer base connector,