HELP I need a ignition Wiring diagram

[rafaelr116]

I need help I have a 1979 Galaxy ski boat with an 1975 135hp Evinrude outboard engine 4 cylender. I boat a new ignition and the wiring diagram is not there. Its a Johnson evinrude switch I belive the part number is 508180. Its the type you push in and the choke goes on. I previosly had a key ignition that broke with a seperate choke swith attached. I have
red wire
2 ground wires
a black and yellow stripe wire
a white wire
a purple wire
and a purple and white stripe wire
Could any one help??????