Volvo

I have a 1976 westerner boat that has a volvo penta sterndrive 280 and motorvp 130 that is missing pieces, so i replaced the motor with a volvo penta aq 120b. i wanted to use the original wiring but im not sure what wires go to what, the colors are red,blue,yellow,black brwn green grey can anyone help?

Try you local marine store for a blokeual that covers both engines the one i have purchased have a pretty nice wiring diagram that covers blokey years and models. it may not be much different but you will have to make the choices.