• If this is your first visit to the iboats.com Boating Forums, be sure to check out the FAQ. To post a question or comment, begin by signing up. To start viewing messages, select the forum that you want to visit from the selection below.

Announcement

Collapse

Help Tip: If you have a question that has not been answered to your satisfaction in the archives, it is always best to start a new thread of your own. By starting your own thread, you will receive the maximum number of views by forum members.

Below are some additional forum policies in hopes of all iboats members will follow, Thank you.

1. Please do not reply to old topics or hijack existing topics. Old topics of a technical nature are like a library book, Please do not write in them.

2. Old topics should be considered archives and used for reference only. Please do not reply to them.

3. Do not take over someone elseís topic (aka hijack) with your own question, even if it is similar. If you have a question that has not been covered to your satisfaction in the archives, it is always best to start a new topic of your own.

4. If you have a question for the original poster (OP) and the topic is over 30 days old, send the OP a PM, he may not even visit the forums any longer, or may not notice your question in the old topic.

5. By starting your own topic, you will receive the maximum number of views by forum helpers that may not even notice your question when itís posted at the end of someone elseís topic. And those answers will be specific to your particular issue.

6. Please do not post to topics that have been inactive for more than 3 months unless you are the original poster. We have very active forums and any topic that remains inactive for that long should be considered "dead". It is especially confusing when there is an entirely new question posted to an old topic.

7. Posting at the end of any topic is considered to be hijacking the original posters topic which in turn subjects the topic to be closed if it continues to happen thus not making it fair to the original poster in the future had for some reason he/she needed to return for additional information or provide an update of the problem solved which is always welcomed within a reasonable amount of time frame.

8. Please note that you should see a red banner pop up near the bottom of each inactive topic asking you not to reply to old topics. The Red banner will read: Please note this topic has been inactive for 90 days. For the best results, please start a new topic.

Thank you all in advance for doing your part in helping iboats run a smooth ship.

Additional forum rules linked below.
http://forums.iboats.com/forum-rules-guidelines-405/
See more
See less

2000 50 HP Mercury power loss at full throttle

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts


  • 2000 50 HP Mercury power loss at full throttle

    I am new to this site!! I have a 2000 50 hp mercury 2 stroke. I took it out the other day after I put on a new hydrofoil stabilizer and a new fuel line and bulb. It started fine and ran great at full throttle. I stopped then started again and when I got past half throttle it would bog and not rev up any higher. It ran great at half throttle. I dropped it back down and throttled up slowly and it went on up to 4500 to 5000 rpm. Ran good the rest of the way. On my way back same thing happened again only this time it would not rev up past half throttle when I would give it more throttle it would just bog down, not die but not gain any power. Can anyone help?

    thanks


  • #2
    Re: 2000 50 HP Mercury power loss at full throttle

    Welcome to to the iboats forum! The experts here, which I am NOT, can help you solve any problem. I helped a neighbor last year with a 2004 Mercury 60HP 2 stroke that had a similar problem. We determined it was clogged high-speed carburetor jets from old fuel. The jets were accessible without removing the cards and we cleaned them with rattle-can carb cleaner and a needle. Why did you install a new fuel line and bulb? Are they OEM parts?
    Old geezer who never worked a day as a professional in the marine industry but has been fooling with outboard motors for 55+ years!

    Comment



    • #3
      Re: 2000 50 HP Mercury power loss at full throttle

      Thanks for the response. I installed a new hose and bulb because the other one was old and cracked and when I removed it it had varnish flakes in it. I got the new one from Wal-mart it was a universal one, do you think that could make a difference.

      Comment



      • #4
        Re: 2000 50 HP Mercury power loss at full throttle

        I've seen comments from some of the forum gurus who recommend only OEM hoses and bulbs. I currently have a Walmart brand hoses myself and find it difficult to create a siphon. That said, the fact that you found "varnish flakes" in your old hoses strongly indicates you may have the same problem in your fuel pump and/or carburetors as well as all fuel lines after the engine connector. Just take it one step at a time. Good luck!
        Old geezer who never worked a day as a professional in the marine industry but has been fooling with outboard motors for 55+ years!

        Comment



        • #5
          Sign up today
          Re: 2000 50 HP Mercury power loss at full throttle

          Thanks!!

          Comment


          Working...
          X