Charging issue on an 1983 Evinrude 75hp

[anderso8623]

I just replaced the rectifier as it was not charging my battery and not sending a signal to my tach. However, my battery is still not charging. Tach works fine. Rectifier still works as I have already checked it with my multi meter.

First - what can I do to check and see if my motor is charging properly

Second - how can I check my battery. I know I can with the multi meter but just do not know what to set it to and what it should read and how to actualy check it.

 

[flyingscott]

Have the battery load tested if the tach is working good bet the system is charging.

 

[F_R]

Are you giving it enough time to charge the battery? It takes awhile. Battery voltage should increase as the motor runs awhile----assuming some accessory isn't drawing power from the battery as fast as you put it back in. If you really want a reading of what the alternator is putting out, connect a suitable ammeter in series with the red rectifier lead. By "suitable", I mean with respect to the expected Amps, which is probably six unless you have a high output alternator. If it is putting out six amps and the battery is not charging, suspect a bad battery or something draining it as I just mentioned.

 

[anderso8623]

I do not have an alternator as it is an outboard. It has a 9 Amp stator.

 

[flyingscott]

That is an alternator the stator refers to the assembly that holds both ignition and the charging assembly. I would double check that stator I do not believe the 9 amp stator was ever put on the 49 cid blocks.