1965 Evinrude 90 HP StarFlite Service Manual, PN 4206, Page 70Get this manual
Figure 6-31Disassembling Clutch Hub
Figure 6-29Checking Coil Resistance 6-29Use meter or light to check shift cable leads for continuityCheck for shorts between green and blue (forward and reverse) leads which could cause both coils to operate at onceThe green lead is for the "Forward" gear range and the blue lead is for the "Reverse" CLUTCH HUBS aA special degree of cleanliness and caution is necessary when disassembling and assembling the clutch hubsEven the smallest metal chip or grit can cause failure of the electric shiftbTo disassemble either clutch hub, remove the Truarc retaining ringSee Figure 6-30Carefully slide the gear and spring assembly from the hubSee Figure 6-31If the bushing or needle bearing starts to bind when the two parts are being separated, stop and put the parts back togetherClean the edges of the retaining ring groove with crocus clothRemove all traces of grit and again proceed to disassemblecNote the differences between forward and reverse clutch hub assembliesThe forward clutch hub is knurled to provide more positive engagement,