bike won't start

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  • tarzan
    XS-XJ Guru
    • Apr 2008
    • 1700
    • Chandler,Az.

    #31
    Ok.Well the pickups should have wear.Are they dirty or do they actually look worn?If worn then the gap must not be set right.
    Are the pickup coil wires ok.That is usually the thing that fails with the pickups.
    I still lean towards fuel problem though.Have you tried spraying starting fluid into the carbs?
    80 SG XS1100
    14 Victory Cross Country

    Comment

    • WraithKnight
      XSive
      • Jul 2009
      • 38
      • Hanford, CA

      #32
      Haven't checked the wires for the pick-ups yet, just got a new can of starting fluid yesterday.

      Comment

      • tarzan
        XS-XJ Guru
        • Apr 2008
        • 1700
        • Chandler,Az.

        #33
        I meant the pickups should not have wear.Sorry about the typo.
        80 SG XS1100
        14 Victory Cross Country

        Comment

        • WraithKnight
          XSive
          • Jul 2009
          • 38
          • Hanford, CA

          #34
          The little raised lines that you gap the timing shaft to look like they might be worn down a little. But I re-gapped the pick-ups to compensate for the wear.

          Comment

          • tarzan
            XS-XJ Guru
            • Apr 2008
            • 1700
            • Chandler,Az.

            #35
            They should be ok.You have ok spark right?And you are confident it is timed right?
            Did you get a chance to spray stating fluid in the carbs?
            80 SG XS1100
            14 Victory Cross Country

            Comment

            • WraithKnight
              XSive
              • Jul 2009
              • 38
              • Hanford, CA

              #36
              I know it is gapped right and I have great spark. Not so sure about the timing, never timed one before. I didn't even get a chance to touch it this weekend.

              Comment

              • Athedra
                XStremely XSive
                • Oct 2009
                • 221
                • Benoni, South Africa

                #37
                You mentioned that you stripped to replace pistons. Then you did all the timing and things but still get front fire on 1 and 4. Just a thought, did you do your cam timing correctly?

                Re-look your cam timing. If it is correct there, check your wiring at your pickups, and then check you coil wiring. Also see if you do get spark from both your coils. On min, my left hand coil does 2 and 3, and my right hand coil does 1 and 4.

                When Mine didnt want to start the first time I found a wire shaved off inside my pickup casing. See if you dont have a broken wire in there.
                '79 XS1100 (2H9) named Bones
                1196 Big Bore
                4-1 Cowley exhaust
                750FD Conversion
                Echlin 54mm Racing Cones (Americanese = pods)
                Black Ebony Bottled glazed Tank (To be redone now)
                BMX footpegs
                Tank internally lined (Professionally this time)
                GSX400 Throttle bodies (Under serious investigation)
                Anti Sticky float bowl system

                Comment

                • Guy_b_g
                  XSive Maximus
                  • May 2007
                  • 790
                  • Beverly Hills, Florida

                  #38
                  The shaft floats in the end of the crank and is driven by a dowel pin, as you can see.
                  You will need to do some surgery to find out what it's hanging up on. Loosen it up and make certain it is seating properly. Make sure the drive pin is inserted into the hole.(I don't know if it is visible. I have not looked so, just a thought). Mine did not give me any such problems when doing the gap check.
                  Umm...Dan...I'm pretty sure that's a pic of the front brake system of a bike (other than an XS11) and not a pic of the ignition system of an XS11...surprised no one has mentioned this yet...

                  Last edited by Guy_b_g; 11-09-2009, 03:47 PM.
                  Guy

                  '78E

                  Quidquid latine dictum sit, altum videtur

                  Comment

                  • Guy_b_g
                    XSive Maximus
                    • May 2007
                    • 790
                    • Beverly Hills, Florida

                    #39
                    You're just testing us to see if we're paying attention...right?
                    Guy

                    '78E

                    Quidquid latine dictum sit, altum videtur

                    Comment

                    • oseaghdha
                      XS-XJ Guru
                      • Aug 2006
                      • 1075
                      • N43.02.5,W88.14.2

                      #40
                      Weird

                      They must have changed the site around. It was right before and I noticed one day all the ref pix were 'not available'

                      I don't even know what those brakes are for!

                      http://parts.yamaha-motor.com/partim...2371,3,0,sport old
                      http://parts.yamaha-motor.com/partim...1738,2,0,sport new
                      XS1100SF
                      XS1100F

                      Comment

                      • Guy_b_g
                        XSive Maximus
                        • May 2007
                        • 790
                        • Beverly Hills, Florida

                        #41
                        LOL...hate when that happens...
                        Guy

                        '78E

                        Quidquid latine dictum sit, altum videtur

                        Comment

                        • WraithKnight
                          XSive
                          • Jul 2009
                          • 38
                          • Hanford, CA

                          #42
                          ITS ALIVE!!!!!!!!!!!!!

                          The coils were wired backwards from what the wireing schmatic showed. Swapped the spark plug wires bike started right up.

                          Comment

                          • Athedra
                            XStremely XSive
                            • Oct 2009
                            • 221
                            • Benoni, South Africa

                            #43
                            Originally posted by WraithKnight
                            ITS ALIVE!!!!!!!!!!!!!

                            The coils were wired backwards from what the wireing schmatic showed. Swapped the spark plug wires bike started right up.
                            Glad you solved the problem. Happy riding
                            '79 XS1100 (2H9) named Bones
                            1196 Big Bore
                            4-1 Cowley exhaust
                            750FD Conversion
                            Echlin 54mm Racing Cones (Americanese = pods)
                            Black Ebony Bottled glazed Tank (To be redone now)
                            BMX footpegs
                            Tank internally lined (Professionally this time)
                            GSX400 Throttle bodies (Under serious investigation)
                            Anti Sticky float bowl system

                            Comment

                            • WraithKnight
                              XSive
                              • Jul 2009
                              • 38
                              • Hanford, CA

                              #44
                              thanks for all the help everyone. I still have a bit to do before I can go for a long ride with it. Am putting new pipes and turn signals on it.

                              Comment

                              • DGXSER
                                Doctor of XSology(Deceased)
                                • Nov 2008
                                • 12001
                                • Cincinnati, Ohio

                                #45
                                Awesome, Another great beast roars onto the pavement!! Glad you got her running good!
                                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

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