charging system on 91 merc 2 stroke , 60 hp

[juanmorkast]

I have an experienced merc that decided not to charge my battery any more.

it is the type with no alternator. for the mechanics out there , is is an expensive repair?? or could it potentially be just my voltage reg ( a lot cheaper repair)

 

I plan on selling the boat this summer ( maybe) but would like it repaired for the next owner. great boat/motor all original minus a small piece of carpet on the casting deck.

 

one fella told me on the low end approx. $1000 on the hi end $1800.. not worth repairing at that price point

 

any ideas, can this be done with basic tools? easy repair/trouble shot??

 

thanks for lookin

[DRIFTER_016]

That motor doesn't have an alternator.

The problem is either the voltage regulator or stator assy.

Best approach if you don't have a factory service manual is to have a mech diagnose the issue.

Unfortunately I sold my '91 Merc 90hp last year along with the factory service manual otherwise I could have copied and sent you the diagnostic steps to test out your components.

 

As for basic tools, yes and no depending on the issue.

For testing you just need a volt/ohm meter.

If you have to replace the stator you will need a puller to remove the fly wheel.

That is the only specialized tool you will need.

Edited February 5, 2015 by DRIFTER_016

[Old Man]

Here's a link to a chart of electrical specs for various Mercury/Mariner motors.

 

http://www.outboardignition.com/page39.asp

[juanmorkast]

thanks guys. I did have the stator replaced for a tune of $1k. if that's the issue then i'll buy a battery charger and thro it in the deal if I sell it.

 

I have had voltage reg issues in the past , hopefully that's all I need