Jump to content

  • GUESTS

    If you want access to members only forums on HSO, you will gain access only when you Sign-in or Sign-Up .

    This box will disappear once you are signed in as a member. ?

  • 0

Any ideas?

Dan Thiem

Asked by Dan Thiem,

 Share

Question

Dan Thiem Mentor

Dan Thiem

Posted
Posted

I have a 1984 Johnson 25 horse. Faithful service for many years. Yesterday it decided to be wierd on me. I could ony keep it running if I kept the choke butterfly 3/4 closed. Almost all the way closed sometime. I take the choke off and it just idles down and kills. The ball is hard and the vent caps is loose. It's worked fine all year. Fresh gas too by the way.

Anybody have an idea where to check?

Link to comment
Share on other sites

6 answers to this question

Recommended Posts

  • 0
Valv Grand Master

Valv

Posted
Posted

Time to do a carb job Dan. If it runs with choke only the needles are plugged or has problems with gas flow in the carb......Try to take carb/s apart and clean it/them VERY VERY well.

If you can try to find a good inline filter, it will help a lot with the "dirt" that you find in gas tanks.

Link to comment
Share on other sites
  • 0
Keith_MN Enthusiast

Keith_MN

Posted
Posted

Dan,

You may not have to go as far as actually tearing the carb off. I would start by taking the gas bowl off first (which you would do to get to the carb anyway), especially if the motor was running good prior to this. Clean out the bowl and make sure the float and needle are clean.

I have a mid-70's 9.8 hp Mercury that pulls this on me occasionally. The needle on the float sticks in place in the closed (ie up) position which prevents gas from getting into the bowl. Often times I can get it to come loose (ie unstick) just by tapping the bowl lightly with a hammer. But if you haven't taken the bowl off in a long time its probably due.

Then run some carb cleaner thru it with the gas. I personally am a big believer in Seafoam.

Good luck.

Link to comment
Share on other sites
  • 0
Guest

Guest

Posted
Posted

Pull the carb off and clean the needle valves and jets.. make sure every little hole is clear.

It will run fine after if you get everything out.

A carb kit is usually inexpensive and will take care of plugged jet issues also.

Link to comment
Share on other sites
Guest
This topic is now closed to further replies.
 Share
Go to question listing


  • Your Responses - Share & Have Fun :)

    • SledNeck
      Random Daily Pics

      By SledNeck · Posted

      Sorry man 
    • rundrave
      Random Daily Pics

      By rundrave · Posted

      Sorry to hear that Duff. Will give my GSP's an extra scratch behind the ear for you guys today
    • Wanderer
      Random Daily Pics

      By Wanderer · Posted

      Aw, man, sorry to hear that.  Shed some tears and remember her well.  They all take a piece of our hearts with them; some more than others.
    • Mike89
      Random Daily Pics

      By Mike89 · Posted

      yes sorry for your loss..  our dogs are always special...
    • smurfy
      Random Daily Pics

      By smurfy · Posted

      Truly sorry to hear that duffman! I know that feeling.  Keep the good memories  
    • Duffman
      Random Daily Pics

      By Duffman · Posted

      Chamois passed away this weekend a couple days short of her 13th bday. What a great dog to hang out with here at home and on distant adventures. Gonna miss ya big time my little big girl.
    • Crow Hunter
      New boat question

      By Crow Hunter · Posted

      Sounds pretty sweet, alright. I will check them out, thanks.
    • Wanderer
      New boat question

      By Wanderer · Posted

      If you really want to treat your wife (and yourself) with a remote operated trolling motor, the Minn Kota Ulterra is about easy as it gets.  Auto stow and deploy is pretty awesome.  You just have to turn the motor on when you go out and that the last time you have to touch it.   24V 80lb.  60 inch shaft is probably the right length for your boat.  They ain’t cheap - about $3k - but neither one of you would have to leave your seat to use it all day.
    • Crow Hunter
      New boat question

      By Crow Hunter · Posted

      Wanderer, thanks for your reply. I do intend for it to be 24 volt, with a thrust of 70-80. Spot lock is a must (my wife is looking forward to not being the anchor person any more).  With my old boat we did quite a lot of pulling shad raps and hot n tots, using the trolling motor. Unlikely that we will fish in whitecaps, did plenty of that when I was younger. I also need a wireless remote, not going back to a foot pedal. We do a fair amount of bobber fishing. I don't think I will bother with a depth finder on the trolling motor. I am leaning toward moving my Garmin depth finder from my old boat to the new one, just because I am so used to it and it works well for me. I am 70 years old and kinda set in my ways...
    • Wanderer
      New boat question

      By Wanderer · Posted

      Dang, new content and now answers.   First, congrats on the new boat!   My recommendation is to get the most thrust you can in 24V, assuming a boat that size isn’t running 36V.  80 might be tops?  I’m partial to MinnKota.     How do you plan to use the trolling motor is an important question too.     All weather or just nice weather?   Casting a lot or bait dragging?   Bobber or panfish fishing?   Spot lock?  Networked with depth finders?  What brand of depth finders?

  • Topics

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use and Privacy Policy. We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.

  I accept