What tacho lead?

[Gramas]

Looking to nxt project and want to use mates 50hp 4 stroke to a 703 control box, what tacho lead/ harness is required? Also have not bought tacho guage yet

[SimonStDavids]

From memory and I am sure someone will correct me the tacho will plug straight into those three wires coming out of the control box.

Green- ac tacho signal
Yellow- switched +
Red- I guess non switched +

I think I also have a black coming out of my box that is -

I have a really vintage tacho that only plugs into the signal and ground wires but all of my previous ones take three, +,- and signal and some take the pink too.

And if a pink is coming out the box it is for the warning lamp or horn (mine is in the box)

Are the connectors in the engine end not connected to anything?

[Gramas]

No not connected mate

[Davie]

Make sure you buy the correct tacho for this engine. You need the analog guage with the red oil warning lamp and a seperate trim guage.

[Gramas]

Ah so can't have all in one type like on my old 90yam, the 4 wire lead with plug that's in my hand on pic is same wires on 90 yam.