1992 Johnson Evinrude "EN" Electric Outboards Service Manual, P/N 508140, Page 96Get this manual
Installation
r.J7l 1Place new O-ring in groove motorSlide heat shrink tubes over motor leads
[!!] 2Crimp and solder splices on motor leadsWhen soldering is required, use rosin core solderDo not use an acid core solder3Make sure spacer solder the splices
in place in the adapter housing
120 4Attach the motor leads to the motor tube leadsCrimp and
Motor red wire to tube red wire Motor green wire to tube black wires5Use radiant heat source to shrink the heat shrink tubes around the splices6Install the motor assembly being careful not to pinch leads