Rectifier, What Does it Do?

Salty Dog

Petty Officer 1st Class
Joined
Feb 24, 2002
Messages
290
Can anyone tell me what a rectifier does? I have a 93 250 Yamaha.
 

mthieme

Captain
Joined
Oct 6, 2007
Messages
3,270
Re: Rectifier, What Does it Do?

It converts AC voltage to DC voltage.
 

Salty Dog

Petty Officer 1st Class
Joined
Feb 24, 2002
Messages
290
Re: Rectifier, What Does it Do?

So it probably has nothing to do with stalling and misfiring. This one is water cooled.

Thanks
 

mthieme

Captain
Joined
Oct 6, 2007
Messages
3,270
Re: Rectifier, What Does it Do?

There's a lot of knowledge here. If you are having a problem, I highly recommend explaining your symptoms in as much detail as possible.
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,771
Re: Rectifier, What Does it Do?

The charging system on the engine consists of magnets in the flywheel that pass over stator windings when the engine is running. This creates AC voltage that feeds the charging system. But AC can't charge a battery so the rectifier converts the AC voltage to DC. Most engines today also include a voltage regulator that maintains charging voltage to a safe level so the battery isn't overcharged.
 
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