1998 Johnson Evinrude "EC" 150, 175 FFI Service Manual, P/N 520211, Page 13Get this manual
Battery CableEngine Connection
Models with multiple ground stud: route and attach battery cables to starter solenoid and ground studRelease upper air silencer cord and route cables behind itInstall starwasher, battery cable, then nutTighten nuts securely
[]]Models with single ground screw: route and attach battery cables to starter solenoid and ground screwRelease upper air silencer cord and route cables behind itInstall starwasher, battery cable, then nut or screwTighten nut and screw securely
Battery Isolator Connection
To connect accessory battery lead to isolated terminal, loosen six self-tapping panel cover screwsRemove coverRemove screw and starwasher retaining regulator lead ring terminalRoute 10 A.W.Gwire behind battery cablesInstall screw through ring terminals and tighten securelyInstall panel cover and tighten screws evenly and securely
MWS Instrument Cable Connection
[]]Route MWS instrument cableoil tank harnessand water pressure gauge hose to rear of engine and install connectorsPush cables behind retaining flange on panel cover[] Secure connectors with tie strap to prevent interference with engine cover latch