Evinrude charging help

riguitin

Cadet
Joined
Nov 13, 2012
Messages
7
I have a 70 hp 1978 evinrude that was not charging i changed the rectifier and the volts with the new rectifier only go up to 13.2 after running on muffs on a bit above idle is this ok or do i need to look at something else plz help
Thanks in advance
 

phillnjack2

Ensign
Joined
Apr 30, 2011
Messages
918
Re: Evinrude charging help

13.2 volts is about right when running at lower than 2000 rpms.
it will only show 14 volts when doing a good amount of revs.

at 13.2 it is charging


phill
 

F_R

Supreme Mariner
Joined
Jul 7, 2006
Messages
28,226
Re: Evinrude charging help

It takes quite awhile to build the voltage up to full charge. Then many people come back here complaining it goes too high. That's life.
 

phillnjack2

Ensign
Joined
Apr 30, 2011
Messages
918
Re: Evinrude charging help

Too many people think all outboards have modern alternators like cars ha ha
the charging on most older outboards is more like the old magneto's and dynamo's for power.

and to all those who like to run powerfull radio's lights and gadgets, they realy need a second battery.

phill
 

boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
Re: Evinrude charging help

Take it on the water and run it at wot and then see what you have.
 

riguitin

Cadet
Joined
Nov 13, 2012
Messages
7
Re: Evinrude charging help

Guys thanks allot for all the replies i was thinking that i had a bigger problem i love this evinrude motor now out of topic here how do i know if i have to change the thermostat thanks for all the replies
 

boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
Re: Evinrude charging help

If the mtr is running to cold or you have an over heat prob.
 
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