Mercury 50 3cly 1988 wiring diagrams

[Urban]

Hello.

I have a problem, my engine doesn't charge the battery, and i am wondering if enybody knows which wire is for battery charge, so i can see if it's wired corectly. Perhaps has enyone got a wiring diagram for my engine and is so kind to share it with me.

Thanks

Urban

[boatmangc]

There is a 1 1/2" X 1 1/2" square black block with 3 terminals on it, it is the rectifier.
2 terminals have yellow wires from the stator, one of them will also be connected to a gray wire.
The third has a red wire on it, that is where your charge current comes from. If your wiring matches this and your tach works change your rectifier.
If your tach doesn't work change the stator

[Urban]

Great, thanks, my wiring is just as you discribed, my tach works normaly, so it's the rectifier, which voltage should i read on this cable, the same as by cars 13.8v or different?

Thanks again.

Urban

[boatmangc]

Yeah 13.5 or so

[Urban]

It was the rectifier, it works without problems now.

Thanks again!