• 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.
  • ALL iboats Forum Members and Guests:
    To show our appreciation for your participation in the Forums, we're offering an exclusive Forums-only discount good for an additional 5% off your iboats.com order for a limited time.
    To redeem, simply call our Customer Service Team at 800-914-1123 (Open M-F, 9am - 8pm Eastern Time) and mention the Forums 5% off discount. Offer excludes engines, trolling motors, and electronics.

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 threads or hijack existing threads. Old threads of a technical nature are like a library book, Please do not write in them.

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

3. Do not take over someone elseís thread (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 thread of your own.

4. If you have a question for the original poster (OP) and the thread 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 thread.

5. By starting your own thread, 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 thread. And those answers will be specific to your particular issue.

6. Please do not post to threads that have been inactive for more than 3 months unless you are the original poster. We have very active forums and any thread 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 thread.

7. Posting at the end of any thread is considered to be hijacking the original posters thread which in turn subjects the thread 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 thread asking you not to reply to old threads. The Red banner will read: Please note this thread has been inactive for 90 days. For the best results, please start a new thread.

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

Merc primer bulb won't get hard

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


  • Merc primer bulb won't get hard

    Can anyone suggest why my primer bulb wont get hard. It's a new bulb, no anti siphon device in line. ?Bad bulb??? would fuel pump sealing or check valve cause this??


  • #2
    Re: Merc primer bulb won't get hard

    It may be the primer bulb,EVEN if it is new.There have been a bunch of bad ones found.But one question, does gas leak from the carb(s)?
    "Did you hear about the guy whose whole left side was cut off? He's all
    right now."

    Comment



    • #3
      Re: Merc primer bulb won't get hard

      Never seen gas leaking from carbs, I feel like I can't get any gas to the carbs. We have fuel tank, water separator, bulb, fuel pump, inline filter, carbs in this order. You'd be there a long time getting the see thru inline filter full of fuel. I usually give up when I can get it 1/2 full, then it usually starts, with a little choke and throttle maybe. I feel fuel moving in the bulb, feels like it comes in from the tank and right back to it,with a little going the right direction each time. Bought fuel pump kit to put in this weekend to stop gas leaking from pump (I've only seen this happen when I'm lucky enough to get the bulb hard). Almost bought another bulb too, but I can get one later if need be, Know how to test a bulb, or where would you look next, I'm planning on the fuel pump kit not solving all the problems...

      Comment



      • #4
        Re: Merc primer bulb won't get hard

        Hi Grandx Not to be smart but did youconnect bulb in right direction. Regards Tom

        Comment



        • #5
          Re: Merc primer bulb won't get hard

          LOL,yea boatmotor,it don't hurt to ask, but mine did that on my 120force and 7.5merc, and it was a new primer bulb in both cases. But yes, that would give the same result Also, remove the pickup tube from the fuel tank. If it has a little ball inside of a cage-like thingy on the end of the tube,take it off and sacrifice it to the toilet-god.It's a worthless device called an anti-syphon check ball,and it will never work the way it was designed to...So toss it.
          "Did you hear about the guy whose whole left side was cut off? He's all
          right now."

          Comment



          • #6
            Re: Merc primer bulb won't get hard

            no anti siphon in line, and yea, no offense taken here, but the bulb flow arrows are pointed to the engine and not the fuel tank. I welcome all possibilities, keep em coming. I'll bet between us we have it fixed by Sunday.Thanks for the posts

            Comment



            • #7
              Re: Merc primer bulb won't get hard

              Had this problem for years with my O/B for me its been the floats in the carbs, I think that they are not/stop seating in the bowls. Samething as you? hard to start,must choke and throttle to start engine.My problem is the boat stays in the water for the season, so I keep the engine tilted up and some of the gas runs out and the floats aren't seated when not using the boat and this is letting the floats get stickey?? What I do is remove the overflow hose on the carb and spray crab cleaner gum out in let it sit 5min and start the engine to run it out.It's allways worked for me.Good Luck

              Comment



              • #8
                Re: Merc primer bulb won't get hard

                I put fuel pump kit in, leak stopped, put a new bulb in. Engine seems to idle fine in the back yard with garden hose hooked up. Plan on going out next weekend, will post results next Monday.dg

                Comment



                • #9
                  Re: Merc primer bulb won't get hard

                  Motor ran fine this Saturday, thanks for everyone's input. Looks like I discovered a leak on top of the trim cylinder though. I'll try my hand at this next. Thanks for everyone's help.

                  Comment

                  Working...
                  X