1968 Evinrude Big Twin, Big Twin Electric, Lark 40 HP Outboards Service Manual, Page 91Get this manual
dRemove two screws attaching switch to bracketReassemble components to new switchNOTE Green lead should connected to forward switch lug; lead to reverse switch lug; red lead to positive switch lug Remove motor cover, and check for possible shorts between forward and reverse leads as described in Section 6, Lower Unit
REASSEMBLY
Reassemble components in the reverse order of disassemblyAttach remote control to boat, replace shift and throttle connections, and check adjustment of throttle