196? Merc 650 need help please

Jfast

Recruit
Joined
Apr 13, 2017
Messages
1
Hello all this is my first post and I appreciate your time and assistance. I just bought my first little OLD aluminum 16 ft boat. Someone cut most of the wiring out probably to sell it for copper. I can re-wire lights etc. it has a merc 650 4cl 2 stroke on it. It originally has three switches, choke, ign, and a starter push button. I need help identifying the wires from the merc wire harness and how to wire them back to the three switches or a keyed ign. I will add pictures to help, thank you again to anyone that can help this noob! Semper Fi!

Ok adding pictures isn't working so....there is 5 wires, black red, white, blue, and salmon. I hope someone can help me not blow this thing up
 

jimmbo

Supreme Mariner
Joined
May 24, 2004
Messages
13,463
A serial number will usually reveal what year it is. The 4 cylinder 650 was made from 1963 thru 1971. There were 2 displacement 60 cubic inches and 62.5 cubic inches and at least 2 different ignition systems.
 
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