BF90 overcharging...

[smokeonthewater]

I know there are a couple of you guys on here that eat sleep and breathe out boards...

I have a 2001 Honda bf90 that has started overcharging the battery. I'm getting 16 volts while running. Of course my first thought is voltage regulator but are there any common things I should be checking before I get into it. FYI this is a freshwater boat and always garage kept.
I did just put a new battery in it but had the problem w the old one too.

[phatdaddy]

I have zero knowledge of that outboard, but being a 4 stroke, does it have an alternator?

If so, is regulator separate or built in the alternator. We are very luck to have a very good shop here that still rebuilds alternators. Mercury has had an issue with the alternators on some of their motors. I am on my second and my buddy is on his third. Last time, he took his into the shop and they just installed a new regulator on his alternator.

Still ran about $125

If you have an alternator, maybe pull it off and take to a shop and see what they say

Sorry, can t help more

[smokeonthewater]

It has the stator under the flywheel

[phatdaddy]

See, told you i had no clue

Hopefully one of the smart guys will know something

I do know Honda has some very good service manuals to help diagnose stuff, might be able to find them online

[smokeonthewater]

Thx...

[smokeonthewater]

What happened? Did all of our outboard gurus disappear?