• 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

Announcement Module
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

Johnson, Idle Problems

Page Title Module
Move Remove Collapse
X
Conversation Detail Module
Collapse
  • Filter
  • Time
  • Show
Clear All
new posts


  • Johnson, Idle Problems

    I have a Johnson 60 HP TLET. VRO is removed, I'm mixing 50:1 in the tank. Starts and runs good. After idling or running at slow trolling speeds for awhile it will shut down. Won't troll with th trolling plate down. Stalls on acceleration from idle or slow speed. Primer bulb does not stay firm, goes soft. Will only start with difficulty when this happens. Accelerating quickly will keep it running. Any suggestions as to what my problem is. Service manual says check filters and anti-siphon valve.Help!------------------pfish


  • #2
    Re: Johnson, Idle Problems

    Hi, Pfish1961, THe primer bulb will go somwhat soft after you run the motor for a few seconds, this is normal. There are numerous areas that could give you this problem. I would check the fuel lines to see if they are loose and possibly allowing them to suck air in. Is the VRO pump still being used, if it is, is the oil inlet plugged off. The VRO pump could be leaking internally. A carburetor may have a problem in the idle circuit of the carb or could be flooding a cylinder. Hope this helps.

    Comment



    • #3
      Re: Johnson, Idle Problems

      Thanks ICE.The VRO is completely removed, the inlet is plugged. I have been considering vacuum leaks as well, they are a little further down the list than the obvious fuel delivery issues I mentioned. The powerhead has recently been rebuilt, the VRO was working just enough to deliver some oil, the level in the oil tank was dropping enough to keep the alarm from blowing but not enough to keep it from blowing up...I will consult the vacuum section of the service manual more closly.------------------pfish

      Comment



      • #4
        Re: Johnson, Idle Problems

        If the VRO has been removed then someone installed a regular fuel pump. From what it sounds like to me you have a pin hole in the fuel diaphram in the fuel pump. You can get a rebuilt kit for about 15 bucks from an OMC dealer. The fuel pump probably works well enough at higher rpm but at idle it's gradually letting the fuel level drop in the carbs and she stalls. The prime ball should go soft, but if you need sqeeze it more that twice after she stalls to get it hard then this would be a good sign the carbs are running dry.

        Comment



        • #5
          Re: Johnson, Idle Problems

          Dunk,You got me thinking. I went back to the manual, and eyeballed the VRO part. Hey, it's cold up here, but I put the heavy stuff on and went outside and pulled the cover off this thing. The VRO is still there!!!, hey I'm new at this. So, my VRO is still acting as the fuel pump, I get it now. I pumped up the primer bulb and started looking closer. The fuel mixture outlet on the VRO connects to a 3/8" fuel hose, which in turn connects to this plastic 3-way distribution pipe, which in turn connects to the three carbs. Carb #2 inlet looks like it is seeping a little, the outside of it is wet.This certainly could mean that carb 2 is intermittently starved for fuel. Is this enough to cause my problem?

          Comment

          Working...
          X