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Old 29 July 2012, 08:04   #1
Country: UK - England
Town: Portsmouth
Make: SR4
Length: 4m +
Engine: 50hp Yamaha
Join Date: May 2012
Posts: 27
Yamaha 703 wiring help


Have a few questions which I need help on..

Firstly, does any one know what this is ? It comes out my 703 control box.

There are 4 wires inside, 1 purple, 1 green, 1 pink, and 1 black

From the wiring diagram it looks as if the green and black are for a tachometer ?
But I have no idea about the purple and pink ?

Any help would be great, Thanks

Tom465 is offline   Reply With Quote
Old 29 July 2012, 09:38   #2
Country: UK - Scotland
Town: wormit
Boat name: lots of them
Make: various
Length: no boat
Engine: all types
Join Date: Dec 2004
Posts: 434
Thats a mercury/mariner plug. You also have a Mercury ignition switch. I guess somebody has fitted a merc loom into your 703 box and your key number is 2B!
Davie is offline   Reply With Quote

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