Announcement

Collapse
No announcement yet.

Best way to start it?

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

  • Best way to start it?

    My 81' when cold fires almost instantaneously as soon as I touch the starter, yet if its been running for a while and its still warm it can take 2-3 goes before it fires. It has no choke either... Just wondering if its better to give it no throttle or some throttle? I cannot work out a happy medium for it.

  • #2
    Sounds like idle circuit running a bit rich. When it's warmed up and you shut it down, then coming back to it in a short, just start cranking and roll the throttle gradually just a tad. Should start a bit quicker and easier......yea, occassionally have to do the same thing, so was'nt just making a stab in the dark so to speak.
    81H Venturer1100 "The Bentley" (on steroids) 97 Yamaha YZ250(age reducer) 92 Honda ST1100 "Twisty"(touring rocket) Age is relative to the number of seconds counted 'airing' out an 85ft. table-top.

    Comment


    • #3
      My Thunderstruck is the exact same way. Stock exhaust and air box with stock jetting on very clean carbs. Yet, If I just got off of it or within 1/2 hour or so and go back to start it, I have to roll the throttle just a touch when I hit the start button to start it. From cold, just touch the button and it starts right up on full or half choke depending on the temp. But once warmed up, needs that little touch of air.

      Fellow member and friend Steppenwolf calls this "the Yamaha Start". He bought his 80 XS11 Special from the show room floor and has ridden and owned it since with over 80k miles on it. Has the same issue when warm.
      Life is what happens while your planning everything else!

      When your work speaks for itself, don't interrupt.

      81 XS1100 Special - Humpty Dumpty
      80 XS1100 Special - Project Resurrection


      Previously owned
      93 GSX600F
      80 XS1100 Special - Ruby
      81 XS1100 Special
      81 CB750 C
      80 CB750 C
      78 XS750

      Comment


      • #4
        I have that same issue myself. I notice it is most apparent when I have run a long distance (engine is REALLY hot), and stop for a quick pit stop. If I go right back to get on the bike it tends to not want to start. I give it a little gas, and it eventually fires up.
        1980 XS850SG - Sold
        1981 XS1100LH Midnight Special (Sold) - purchased 9/29/08
        Fully Vetterized and Dynojet Kit added, Heated Grips, Truck-Lite LED headlight, Accel Coils, Irridium plugs, TKAT Fork Brace, XS850LH Final Drive & Black SS Brake lines from Chacal.
        Here's my web page devoted to my bike! XS/XJ User's Manuals there, and the XJ1100 Service Manual and both XS1100 Service manuals (free download!).

        Whether you think you can, or you think you cannot - You're right.
        -H. Ford

        Comment


        • #5
          Mine's the same way! Just need to crack the twisty stick every so slightly once its warm to make'r start. Is there a jetting remedy to this 'problem'?
          '79 XS11 F
          Stock except K&N

          '79 XS11 SF
          Stock, no title.

          '84 Chevy K-10 "Big Blue"
          GM 350, Muncie SM465, NP208, GM 10 Bolt with 3.42gears turnin 31x10.5 Baja Claws

          "What they do have is an implacable, unrelenting presence and movement that bespeaks massive power lurking behind paint and chrome. They don't wail like a screeching ninja, the don't rumble like a harley. They just growl like a spactic, stressed out badger waiting to rip your face off and eat your soul." Trainzz~RIP~

          Comment


          • #6
            Same way on my 80 MNS.
            1980 XS1100LG Midnight
            1991 Honda CBR1000F Hurricane


            "The hand is almost valueless at one end of the arm if there be not a brain at the other"

            Here's to a long life and a happy one.
            A quick death and an easy one.
            A pretty girl and an honest one.
            A cold beer and another one!

            Comment


            • #7
              Originally posted by WMarshy View Post
              Is there a jetting remedy to this 'problem'?
              JAT, I wonder if installing a dynojet kit has helped this for anyone?
              1980 XS850SG - Sold
              1981 XS1100LH Midnight Special (Sold) - purchased 9/29/08
              Fully Vetterized and Dynojet Kit added, Heated Grips, Truck-Lite LED headlight, Accel Coils, Irridium plugs, TKAT Fork Brace, XS850LH Final Drive & Black SS Brake lines from Chacal.
              Here's my web page devoted to my bike! XS/XJ User's Manuals there, and the XJ1100 Service Manual and both XS1100 Service manuals (free download!).

              Whether you think you can, or you think you cannot - You're right.
              -H. Ford

              Comment


              • #8
                Maybe Bug, but then you'd have to teach an old dog a new trick after 28yrs. doin' the same procedure....lol.
                81H Venturer1100 "The Bentley" (on steroids) 97 Yamaha YZ250(age reducer) 92 Honda ST1100 "Twisty"(touring rocket) Age is relative to the number of seconds counted 'airing' out an 85ft. table-top.

                Comment


                • #9
                  Mine used to do that, I just went through and dropped my floats a bit and now I can start with 1 finger all the time.
                  1979 xs1100 Special -
                  Stock air box/K&N Filter, MAC 4-2 exhaust, Bad-Boy Air horn, TC fuse box, Windshield, Soft bags, Vetter Fairing, Blinkers->Run/Turn/Brake Lights, Headlight Modulator, hard wire GPS power

                  Short Stack - 1981 xs1100 Standard - lowered for SWMBO.

                  Originally posted by fredintoon
                  Goes like a train, corners like a cow, shifts like a Russian tractor, drinks like a fish, you are gonna love it.
                  My Bike:
                  [link is broken]

                  Comment


                  • #10
                    When mine had carbs, it did the same thing. Crack the throttle just the slightest possible bit before hitting the starter button and it should fire right up.
                    '81 XS1100 SH

                    Melted to the ground during The Valley Fire

                    Sep. 12th 2015

                    RIP

                    Comment


                    • #11
                      Mine

                      Busts right off hot or cold but I upped my air jets a couple and did not know how it ran before.
                      '81 1100 MNS - "Midnight XSpress"
                      Original except:
                      120 mains outer cylinders - 125 mains inner cylinders - Ceramic headers - Powder coated pipes, covers calipers, and MC's
                      4 pods - Air box gutted--E3 Plugs - High Back seat - Grooved out swing arm - SS brake lines
                      Fork brace - 160 speedo - Auto CCT
                      All gold paint and chrome replaced with GOLD plate

                      "STUPID is Forever" Ron White.
                      Contact me by PM -I don't deal with stupid anymore.

                      Big John

                      Comment


                      • #12
                        Test

                        Test TEST TEST
                        T. C. Gresham
                        81SH "Godzilla" . . .1179cc super-rat.
                        79SF "The Teacher" . . .basket case!
                        History shows again and again,
                        How nature points out the folly of men!

                        Comment

                        Working...
                        X