1969 Evinrude 40 HP Big Twin, Big Twin Electric Lark Service Manual 4596, Page 99Get this manual
dRemove two screws attaching switch to bracketReassemble components to new switchNOTE Green lead should be connected to forward switch lug; blue lead to reverse switch lug; red lead to positive switch lug bRemove motor cover, and check for possible shorts between forward and reverse leads as described in Section 6, Lower Unit
REASSEMBLY
aReassemble all components in the reverse order of disassembly Attach remote control to boat, replace shift cable and throttle cable connections, and check adjustment of throttle cable