1978 Johnson 4HP outboards Service Manual, Page 49Get this manual
ARMATURE PLATE INSTALLATION aIf removed for servicing, install the retainer plate on the crankcaseNext, position the support plate over the retainer plate and align the holes between the plate and crankcaseInstall the screws and torque to specifications in Section 2Reconnect the throttle lever to armature plate linkSee Figure 4-35bApply OMC Moly Lube to the crankcase boss (pilot for armature plate)See Figure 4-36cLubricate the armature plate bearing with light coat of OMC outboard lubricantdBe sure the throttle cam is behind the cam following to prevent jamming the throttle levereInsert needle nose pliers into the slots provided and hold the armature plate bearing compressed while guiding the armature plate into position See Figure 4-36fPosition the armature plate with the center of the charge coil in line with the stop on the retainer plate and tighten the screws to the torque specified in Section 2See Figure 4-34