Choke wiring

[JaguarMan]

Just installed a new complete engine Mercruiser Bravo 325hp. Replaced an 0K027540 with a Weber carb. The new engine choke wire purple/yellow near the alternator has a barrel push on connector. Does this go to the "AC tap" for the tach on the back of a Mando alternator?

 

[NHGuy]

Don't know if it's labelled AC tap. But the pictogram shows it is at the left side as you face the non pulley end of the alternator.

 

[JaguarMan]

It has a "P" terminal with a clear rubber nut on that terminal. I called the dealer I bought the engine from and they said to cut the 90 degree push on terminal and crimp a ring connector on and attach it to the purple wire terminal. I really do not think that is the proper way to wire a brand new engine.

 

[Bondo]

Ayuh,.... Welcome Aboard,.... Every electric choke I've seen is powered from the ignition circuit, 'n not the alternator,....

 

[JaguarMan]

The dealer said at the back of the alternator attach the wire to the purple wire. That is what I did but it seems like a hack job. The engine is a new Mercruiser Bravo 5.7 325 hp. It comes complete with spark and fuel and new engine harness.

 

[NHGuy]

OK that makes sense cuz that wire is on with ignition.

 

[johnkom]

Ah, electric chokes. I wired in a relay that powers the choke when the oil pressure light goes out. I hate the choke being energized just because I turned on the key.

JK

 

[JaguarMan]

I am going to change the wiring as to what JK did. Seems more logical. Thanks for all the help.

 

[Bondo]

Ayuh,.... Over complicatin' a simple wire attachment,......

Electric chokes are fed off the ignition circuit,....

The purple wires at the motor are the ignition circuit,....

The wire you noted is maybe a foot from the carb,....

Wirin' Problems on boats, usually start with corrosion at wirin' ends,....
How many extra wirin' ends do ya think will be added to add a relay,..??