Announcement

Collapse
No announcement yet.

B&S reving?

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

  • B&S reving?

    What dose it indicate? I have a motor that will just rev up and down erratically no matter if its at idle or full throttle. I look at the carb and the throttle on the carb just bounces back and forth and back and forth. If I hold it opened it forces the lever to the stop position and kills the motor. Any ides?
    White Company

  • #2
    Off the top of my head I can think of two potential reasons. Either the governer or the carb float.

    If the governer spring is weak it can cause this or if the float is bad it can cause the bowl to empty and then refill instead of being a steady amount of fuel.

    Maybe another member has more thoughts on it though.
    - Subscribe to my Lawn Care Marketing Blog Feed and get daily tips sent to you. Free!
    Download your Free trial of Gopher Lawn Care Software.

    Comment


    • #3
      Off the top of my head I can think of two potential reasons. Either the governer or the carb float.

      If the governer spring is weak it can cause this or if the float is bad it can cause the bowl to empty and then refill instead of being a steady amount of fuel.

      Maybe another member has more thoughts on it though.
      I checked and the governor was restricted but I didn't check the spring. Would a week spring cause this? I tore the carb apart and this far it looks fine. I gave it a good cleaning anyway but it didn't help the situation at all. Is there a process to tighten the governor spring?
      White Company

      Comment


      • #4
        Air Filter

        Here we have a lot of fine sand. My filter clogs rather quickly and I get the same effect you are experiencing. You might check it out.

        Steve


        Comment


        • #5
          Here we have a lot of fine sand. My filter clogs rather quickly and I get the same effect you are experiencing. You might check it out.

          Steve
          I have been working on it with the filter removed so I know that's not it. I am just about done producing a video for you tube of it. I will post a link when it is uploaded.
          White Company

          Comment


          • #6
            Ok here is the video. You can see no matter if its at idle or full throttle it still runs and revs the same.

            http://www.youtube.com/watch?v=_wFDi5594tw
            <object width="640" height="385"><param name="movie" value="http://www.youtube.com/v/_wFDi5594tw&hl=en_US&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/_wFDi5594tw&hl=en_US&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="640" height="385"></embed></object>
            White Company

            Comment


            • #7
              Do you have another similar sized engine that you could swap the governor spring with or even compare the tension of each?

              Air Vane Governor


              Air Vane Governor


              Mechanical Governor
              - Subscribe to my Lawn Care Marketing Blog Feed and get daily tips sent to you. Free!
              Download your Free trial of Gopher Lawn Care Software.

              Comment


              • #8
                Unfortunately no I dont. I think if I cant figure it out I will just disconnect it and run a solid rod from the throttle to the carb.
                White Company

                Comment


                • #9
                  Common people. 111 views? Someone has to have an idea?
                  White Company

                  Comment


                  • #10
                    I am thinking its gonna be the governor but another thing to consider is that the carb float can be gunk free and moving fine in the carb but if it is too old, it may not have the same float properties it originally had.

                    You can test a float by using a pair of needle nose plyers and submerging the float into a cup of hot water and look to see if any bubble are being released from the float that would signify a leak in the float.
                    - Subscribe to my Lawn Care Marketing Blog Feed and get daily tips sent to you. Free!
                    Download your Free trial of Gopher Lawn Care Software.

                    Comment


                    • #11
                      I'm not sure exactly how the float would cause this. If it was filling with gas then it would overflow, if it were not moving down the bowl would not fill. You can see in the video where I manually hit the gas and it revs like its suppose to but the governor pushes back on it hard.
                      White Company

                      Comment

                      Working...
                      X