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.

  • Announcements

    • Rick

      Members Only Fluid Forum View   08/08/2017

      Fluid forum view allows members only to get right to the meat of this community; the topics. You can toggle between your preferred forum view just below to the left on the main forum entrance. You will see three icons. Try them out and see what you prefer.   Fluid view allows you, if you are a signed up member, to see the newest topic posts in either all forums (select none or all) or in just your favorite forums (select the ones you want to see when you come to Fishing Minnesota). It keeps and in real time with respect to Topic posts and lets YOU SELECT YOUR FAVORITE FORUMS. It can make things fun and easy. This is especially true for less experienced visitors raised on social media. If you, as a members want more specific topics, you can even select a single forum to view. Let us take a look at fluid view in action. We will then break it down and explain how it works in more detail.   The video shows the topic list and the forum filter box. As you can see, it is easy to change the topic list by changing the selected forums. This view replaces the traditional list of categories and forums.   Of course, members only can change the view to better suit your way of browsing.   You will notice a “grid” option. We have moved the grid forum theme setting into the main forum settings. This makes it an option for members only to choose. This screenshot also shows the removal of the forum breadcrumb in fluid view mode. Fluid view remembers your last forum selection so you don’t lose your place when you go back to the listing. The benefit of this feature is easy to see. It removes a potential barrier of entry for members only. It puts the spotlight on topics themselves, and not the hierarchical forum structure. You as a member will enjoy viewing many forums at once and switching between them without leaving the page. We hope that fluid view, the new functionality is an asset that you enjoy .
Sign in to follow this  
Fishin4Life

1976 merc cut out at mid range

Recommended Posts

Fishin4Life

Hey guys. I am looking at getting a boat from a family friend. I took it out and ran it a few times today and noticed that at mid range throttle it cuts out and if you don't slam on the gas or back off it will die. If you idle up then slam onto WOT it doesn't have any issues at all, and runs out good at WOT. Any ideas on what this could be? The boat has been sitting for three years, put in new gas and some sea foam. But the owner had it tuned up each year and they said it has always done this... so I don't think it is from being gummed up.

Any ideas would be helpful. Maybe a cost idea on how much it will be to fix to work that into the price of the boat...

Thanks!

Share this post


Link to post
Share on other sites
eurolarva

Sounds like a bad stator. I believe you will need a DVA to test it.

Share this post


Link to post
Share on other sites
boatfixer

What HP is this? When you sat it cuts out, does it sputter or does it just instantly die out? One thing I would take a look at are the stator and trigger wires coming from from under the flywheel. look for bare spots. Alot of the older mercs have deteriorating wires and insulation. If you know the approximate position of the throttle handle when it cuts out, move it to that position and see if you can find where it might be touching the block or other places for grounding, (with the engine turned off of course).

Share this post


Link to post
Share on other sites
Fishin4Life

Sorry I forgot to put that in. It is a 70 hp. Are the stators generally expensive to repair? What is a DVA? Sorry I am not up on the repair stuff for boat motors yet.

It seems to to sputter a bit and then die out, like it is struggling to run. At the dead spot it will surge, then die out, then surge then die out, until it eventually quits running. Any other ideas? I know it won't hurt, but do you a think a good rebuild of the carbs could solve it? Or does it sound more electrical?

I will check out that throttle link tomorrow to see if it touches anywhere. Thanks for your help

Share this post


Link to post
Share on other sites
boatfixer

rebuilding the carbs is a good idea. If the motor has sat for a while, installing a new impeller is also strongly suggested.A new stator will run you about 150.00-175.00 for parts. A DVA is an electrical test meter used to measure peak voltage on high voltage ignitions, such as the one you have. Stators like the one on your motor, have low speed and high speed voltage. typically, when stators fail, it won't start at all, or it wont run past 1000 rpms. There is a chance that the windings are grounding when you advance the throttle. Either way, I would have a look at the basics first. Electrical parts are quite expensive to replace and dealers will not take them back. If you can't find something with the fuel system, (filter, carbs, hose & bulb, connecters) I would suggest taking it to a shop to have the ignition system tested.

Share this post


Link to post
Share on other sites
Fishin4Life

OK great, thanks for all the suggestions! I will check those all out.

Share this post


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



  • Posts

    • JIvers
      Thanks for the reply. Ya, McNally's gets pounded right away. I looked at the ice in front of Schafer's in Onalaska yesterday; there was about 3.5" of ice near the docks, and then it got thinner in a hurry. Apparently someone got wet feet there earlier in the day.  I ended up at Lawrence Lake Marina just north of Brownsville yesterday. There was probably 4" of good clear ice, much better than what I found in  La Crosse. Will post pictures later, but I got one nice largemouth on a tip up at the Marina, one 10" perch, and a couple small perch.  Today I drove around Winona, and fished the backwater pond east of Latsch Island on the west side of the road. The ice there was...not real good.  I stuck close to shore on 3" of not-real-clear ice after my spud bar saved me from a cold bath a little farther out.  I caught a few small perch there, and a bunch of small bluegills. Nothing worth keeping, and nothing on the tip-up. Was expecting the ice to be a little better than what I found, but what do you do?    
    • leech~~
      No Lake Trout in the lake?
    • leech~~
      Thanks Guys.  Starting to feel better about may be getting the sled and porty out there.
    • kelly-p
      Miss the old days too shaky, we had some fun didn't we.  I don't miss working on the lake tho.
    • kelly-p
      Westwind, Roger's and JR's that I know of. Not sure of the cost.
    • Rick G
      Roughly 11inches... there were a few brave people who drove mini vans out
    • Wanderer
      @leech~~ There was all of 10 inches where I was but I’d say it was a tick more.
    • MNoutdoors99
      Thanks for your input, I got myself setup with braid and a fluoro leader and its working great!
    • MNoutdoors99
      Hey all, I am looking to catch a decent perch in the 7" or bigger range and soon because in my class at school we get to taxidermy a fish and I would like to do a yellow perch, I have fished little Pulaski for 2 days and Buffalo for one and caught nothing on Buffalo lake and some bluegills and bass on little pulaski. Anyone got advice on spots in little Pulaski or Buffalo lake or just another lake near by Buffalo as well for perch? Thanks - jim
    • tview
      Thanks Moose  Fun meeting up with the Group today Fun Day . Good times.. i