Guests - If You want access to member only forums on FM. You will gain access only when you Sign-in or Sign-Up on Fishing Minnesota.

It's easy - LOOK UPPER right menu.

Sign in to follow this  
Followers 0
icemac33

Does my boat motor charge the battery?

6 posts in this topic

Dumb question here. I have a 89 Johnson 25 HP - Electric Start. Is the motor charging my starting battery when it is running? It is direct connect to the battery. Thanks for any info.

Share this post


Link to post
Share on other sites

Yes - assuming the charging system is working properly.

Share this post


Link to post
Share on other sites

If it was a factory installed electric start, then yes it should be. One way to tell would be to look for 2 yellow wires coming from under the flywheel to a rectifier. They may go to the terminal block or through a plug to the rectifier. either way, the rectifier will have the 2 yellows and a red hooked to it. No matter what anyone tells you, DO NOT DISCONNECT THE BATTERY CABLES AND LOOK FOR A SPARK WHILE THE ENGINE IS RUNNING.

Share this post


Link to post
Share on other sites

Next time out, bring a multi-tester and prob battery term's while at idle or under load (could do with rabbit ears at home). Set multi-tester to 20v and see if your above the rating you tested battery at before eng. started. OH, test battery before you start it to see what volts it sitting at.

Easiest way I know of.

My fish graph has volts on it and I run it off of crank battery. The eleminates distruption I get from trolling motor battery and helps monitor charge rate of cranking battery.

Good luck!!!

Share this post


Link to post
Share on other sites

Thanks for the info guys.

Share this post


Link to post
Share on other sites

Or, if you have a sounder, look in the menu "Data" and see if have the option to turn on the battery gauge. You'll notice a difference in voltage with and without the outboard running.

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this  
Followers 0



  • Posts

    • blue_healer_guy
      Boy, some people must just hate their life.
    • Hoey
      I recommend considering other lakes.  URL by the 4th is nearly void of walleye.  8 years or so ago, we did a two-family trip and only caught fresh water drum.  Star Trib Article
    • eyeguy 54
      http://www.startribune.com/monster-muskie-found-on-mille-lacs-exceeds-state-record/431203243/
    • 2thepointsetters
      I was honored to be part of the "Veterans on Lake Superior" trip again this year. Channel six did a nice story about the Veterans. They were a great group out on the water.   http://www.kbjr6.com/video?clipId=13445592&autostart=true
    • 2thepointsetters
          Barry is retired. I bought his boat and fished her unitl I got the 38'er. Team Crush is still using the old Whitewater.   Barry does work on my boat occasionally as the first mate.    
    • portageguy
      Motor use day or camping.  Pick up day before or day of, May1-September 30. Fill out permit at entrance and put in box when exiting or mail in.  October 1-April 30
    • BulldogInTC
      Hi Cliff -   Thanks for the update on the hatch.  Is this usually a bust for 2 weeks once the big hatches start?  Will be up the 30th-9th, but still excited since its the first time staying for a full week at the in-laws cabin.  Hoping to provide a few updates on the West Side through the week.
    • jiggin9
      Thanks for the info.  I searched before and after this thread for any old threads on this topic.  I got nothing before and this thread is the only one that pops up after.  I will keep looking online or stop at one of the big box stores.    Tight lines. 
    • CaptJohnWis
      J-Roy,  I use UL rod and 4 lb a lot when throwing jigs. I have found that the lighter the jig head, the more fish bite and the more you hook. Wind will mess up using light jigs though. When fishing heavy jigs, cranks, top water or spoons, I use heavier line and rod. If fishing weeds need heavy line as well.   Hook ups/bites is much higher with lite jigs. I missed about 50% of hits yesterday using 1/2 oz head. Landed about 90% of hits a few days ago when using 1/8 oz head. Tough to fish 1/8 oz on even 8 lb line so I stick with 4 lb .
    • DJ_Slick
      oops - duplicate post.