Hard to start and fuel issues.

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  • T1ny
    XSive
    • Aug 2002
    • 71
    • Oshawa, ON

    #1

    Hard to start and fuel issues.

    Back to ask another couple of questions, I've only had my '79 XS11 for a couple of days now having moved from the '79 goldwing.

    When the bike is cold (30 mins sitting or overnight) I am having a very hard time getting the bike started. Could someone give me the correct procedure for starting? I've tried not giving it any gas, twisting it a few times and various combo's of that.

    Also when on the highway today after only 150klms I noticed the bike was struggling for fuel so I pulled over to the side of the road to see what was up, the engine died completly at this point. There is lots of gas in the tank etc, but will not start. I switch the tank into reverve and still won't start so I move it to PRI and it started right up and got me home the other 150 Klms without further problems, but It's still set to PRI. Could someone please try to explain what's going on?
    1979 XS1100 - "Blue Belle"
  • Dragonrider
    XS-XJ Guru
    • Jul 2002
    • 1219
    • Garland, Texas

    #2
    Bad vacuum to the petcocks (if standard) or bad diaphrams in the petcocks.

    If a special, then bad vacuum to the octopus or a bad diaphram.

    In short, these are vacuum operated valves, and yours are turning off for some reason. Prime bypasses the vacuum operation and just turns them on.

    Do not leave sitting in "prime" position, if your floats or needle valves in the carbs are not right, all the gas will drain through the carbs, and all over the floor or into the oil (bad).

    Check the vacuum lines, and get a rebuild kit for your petcocks, octopus.

    Good luck.
    CUAgain,
    Daniel Meyer
    Author. Adventurer. Electrician.
    Find out why...It's About the Ride.

    Comment

    • T1ny
      XSive
      • Aug 2002
      • 71
      • Oshawa, ON

      #3
      So if I remember to move everything back to the normal setting when I'm not riding will I be causing any problems? Just to get me through until the winter months.
      1979 XS1100 - "Blue Belle"

      Comment

      • Dragonrider
        XS-XJ Guru
        • Jul 2002
        • 1219
        • Garland, Texas

        #4
        Yah, should be OK. Prime uses gas from the reserve level, so you will have no reserve.

        Petcock rebuild kit is about $30, K&H? K&N? Cannot remember . . . but usually in stock at your dealer . . .has enough parts for both and the octopus in the special . . . don't know about the standard kit.

        Only about a 45 minute rebuild job . . . takes more time to pull the seat and tank then to do the job.
        CUAgain,
        Daniel Meyer
        Author. Adventurer. Electrician.
        Find out why...It's About the Ride.

        Comment

        • Bob
          XSive
          • Jul 2002
          • 62

          #5
          starting problems

          As for the difficult starting when "cold"....use the choke without twisting the throttle. I have a 79 XS Standard and even in the summertime I sometimes have to choke it some to start it. There are 3 choke positions on my bike: in (for normal running), mid-way, & full (all the way out for cold starting). Hope this helps.
          I'm the Person my Parents Warned me about.

          Comment

          • sixtysix
            No XS but XSive as can be!
            • Jun 2002
            • 1958
            • Central New York State

            #6
            K&L makes the petcock rebuild kits.
            Gary Granger
            Remember, we are the caretakers of mechanical art.
            2013 Suzuki DR650SE, 2009 Kawasaki Concours 1400, 2003 Aprilia RSV Mille Tuono

            Comment

            • T1ny
              XSive
              • Aug 2002
              • 71
              • Oshawa, ON

              #7
              DragonRider: Thanks, I'll check with the local dealer today and get the kit ordered.

              As for using the choke during starts... I am ashamed to admit this, but I can't find it. I have the standard model as well.
              1979 XS1100 - "Blue Belle"

              Comment

              • Bob
                XSive
                • Jul 2002
                • 62

                #8
                choke

                nuttin to be ashamed of....I was fortunate enough to get the owner's manual & original toolkit when I bought my bike. As you sit on the bike, the choke is on the left end of the carbs. Looks like a lever. Check out this post that Mike Hart posted: Blaines XS Carb FAQ. Good info there.
                I'm the Person my Parents Warned me about.

                Comment

                • Bob
                  XSive
                  • Jul 2002
                  • 62

                  #9
                  Blaines XS Carb FAQ

                  That tip is located in XS/XJ11 discussion under "new tip posted" by Mike Hart. I don't know how to do the underline thingy like he did it.
                  I'm the Person my Parents Warned me about.

                  Comment

                  • T1ny
                    XSive
                    • Aug 2002
                    • 71
                    • Oshawa, ON

                    #10
                    Thanks, right in front of me so to speak. That solved the cold start issues. <smile>
                    1979 XS1100 - "Blue Belle"

                    Comment

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