Announcement

Collapse
No announcement yet.

I have gas in my oil.

Collapse
X
Collapse
 
  • Page of 1
  • Filter
  • Time
  • Show
Clear All
new posts
Previous template Next
    #1

    I have gas in my oil.

    I just took the oil out of the bike (gs 1000 gl 1981) and there was anough gas in the oil to light right up. I am wodering what is causing this and how to correct it? Please can anyone give a hand? Thanks.
    Tags: None
    #2
    Re: I have gas in my oil.

    I would say you have two problems. First, for gas to leak through the carbs and into the crankcase oil, the float valves cant be shutting off fuel as they should be. For there to be enough fuel to overflow the carb bowls, the petcock is likely leaking fuel even in the run position when the bike is shut off and there is no available vacum to open the valve. I am assuming you are not leaving the petcock in the prime position and running from that.

    Earl


    Originally posted by illrod
    I just took the oil out of the bike (gs 1000 gl 1981) and there was anough gas in the oil to light right up. I am wodering what is causing this and how to correct it? Please can anyone give a hand? Thanks.
    Komorebi-The light filtering through the trees.

    I would rather sit on a pumpkin and have it all to myself than be crowded on a velvet cushion. H.D.T.

    Comment

      #3
      I agree - if the bike is running OK, raw gas has to be leaking thru somewhere and that somewhere is the carbs. Was it running OK when you changed the oil?

      Comment

        #4
        Yes the bike was running in top shape. I had no idea this was happening untill I saw that the oil was all thined out. I also just replaced the old petcock with a new one. The old one was shot and just let gas run through it.

        Comment

          #5
          Oil Dilution

          I had the same problem with my GS750E. Float(s) not sealing and leaking petcock.

          Comment

            #6
            sounds like that could be it. I just don't know how to correctly set the float for this bike?

            Comment

              #7
              is there an off position?

              While everyone is on the subject of petcocks leaking mass amounts of gas into the crankcase i have a question. Is there an actual off position on this thing? Does it work on vacuum so it doesn't draw fuel while it is off? Would an inline valve stop any possible problems? Don't worry, I will have more questions for you later.

              Trevor
              '85 GS700E

              Comment

                #8
                There is no definite off position on a vacuum controlled tap. default on position shuts off the petrol via a small piston, which is pulled open by vacuum when the engine is turning over. I still have the original tap on my 1978 GS1000 (owned since 1980). I think I have only cleaned it or had it apart once in that time. If it is not turning off properly give it a careful clean out. I think I have heard that fuel could go through the vacuum hose if there is a split in the vacuum diaphram.

                The carbs can flood even while running if the float levels are too high or a bit of junk is holding open the float.

                Comment

                Previous template Next
                Working...
                X