Clutch question

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  • DenyP
    XSive Maximus
    • May 2008
    • 599
    • Staples, Minnesota 56479
    #1

    Clutch question

    I am going through my clutch this weekend. I was in the process of torquing the spring bolts when one of the bolts snapped. Real surprised as I had not exceeded the 7.2 foot lbs torque call out and was being careful to snug them in a pattern.
    My question, do I have to use special bolts in this assembly or can I replace all six with hardware store bolts?

    Thanx

    Deny
    1978 XS1100E - The TimeMachine
    1980 XS850 Special - Little Mo
    Tags: None
    • 3Phase
      XS-XJ Super Guru
      • May 2008
      • 5529
      • Simi Valley, CA
      #2
      Deny,

      You might be able to find some bolts at the hardware store but be careful. The OEM bolts are designed to fail instead of pulling the threads or an entire aluminum post out of Pressure Plate 2.

      .
      -- Scott
      _____
      ♬
      2004 ST1300A: No name... yet
      1982 XJ1100J: "Baby" SS Brakes, '850 FD, ACCT
      1980 XS1100G: "Columbo" SS Brakes, '850 FD, ACCT
      1979 XS1100SF: "Bush" W.I.P.
      1979 XS1100F: parts
      2018 Heritage Softail Classic 117 FLHCS SE: "Nanuk" It's DEAD, it's not just resting. It is an EX cycle.
      ♬

        Comment

        • BA80
          Doctor of XSology
          • Oct 2010
          • 9980
          • Tulsa, Ok
          #3
          You gotta look at those bolts close when your in there working on the clutch Denny. If they have been over tightened the threads up near the head will be visibly stretched. I hope you are putting some Barnett springs in there. I don't think I've run across a friction or steel out of spec, it's usually just weak springs or wrong oil choices that cause clutch slippage.
          Greg

          Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.”

          ― Albert Einstein

          80 SG Ol' Okie;79 engine & carbs w/pods, 45 pilots, 140 mains, Custom Mac 4 into 2 exhaust, ACCT,XS850 final drive,110/90/19 front tire,TKat fork brace, XS750 140 MPH speedometer, Vetter IV fairing, aftermarket hard bags and trunk, LG high back seat, XJ rear shocks.

          The list changes.

            Comment

            • DenyP
              XSive Maximus
              • May 2008
              • 599
              • Staples, Minnesota 56479
              #4
              Originally posted by BA80
              You gotta look at those bolts close when your in there working on the clutch Denny. If they have been over tightened the threads up near the head will be visibly stretched. I hope you are putting some Barnett springs in there. I don't think I've run across a friction or steel out of spec, it's usually just weak springs or wrong oil choices that cause clutch slippage.
              No slippage - sticking... I put the extra plate in that was in our mod section some time ago. I have new springs from 3 or 4 years ago when I did the mod. Should I replace them again?

              Thanks

              Deny
              1978 XS1100E - The TimeMachine
              1980 XS850 Special - Little Mo

                Comment

                • BA80
                  Doctor of XSology
                  • Oct 2010
                  • 9980
                  • Tulsa, Ok
                  #5
                  Take out the extra steel and put a set of BARNETT SPRINGS in. Use the oils recommended here for the older wet clutches and you'll be doing wheelies.
                  Greg

                  Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.”

                  ― Albert Einstein

                  80 SG Ol' Okie;79 engine & carbs w/pods, 45 pilots, 140 mains, Custom Mac 4 into 2 exhaust, ACCT,XS850 final drive,110/90/19 front tire,TKat fork brace, XS750 140 MPH speedometer, Vetter IV fairing, aftermarket hard bags and trunk, LG high back seat, XJ rear shocks.

                  The list changes.

                    Comment

                    • DenyP
                      XSive Maximus
                      • May 2008
                      • 599
                      • Staples, Minnesota 56479
                      #6
                      Originally posted by BA80
                      Take out the extra steel and put a set of BARNETT SPRINGS in. Use the oils recommended here for the older wet clutches and you'll be doing wheelies.
                      Thanks for the advise. I've ordered Barnett springs and new bolts from Yamaha. Now to wait.....

                      Thanks

                      Deny
                      1978 XS1100E - The TimeMachine
                      1980 XS850 Special - Little Mo

                        Comment

                        • motoman
                          Master of XSology
                          • Aug 2005
                          • 8413
                          • Grand Junction, Colorado
                          #7
                          Originally posted by BA80
                          Take out the extra steel and put a set of BARNETT SPRINGS in. Use the oils recommended here for the older wet clutches and you'll be doing wheelies.
                          +1!.......that extra plate nonsense, changing travel dimensions will sooner or later collapse the clutch springs and they WILL loose their tension, whether they be Barrnetts or stock replacements. That is a bandaid at best.
                          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

                            • BA80
                              Doctor of XSology
                              • Oct 2010
                              • 9980
                              • Tulsa, Ok
                              #8
                              Originally posted by motoman
                              +1!.......that extra plate nonsense, changing travel dimensions will sooner or later collapse the clutch springs and they WILL loose their tension, whether they be Barrnetts or stock replacements. That is a bandaid at best.
                              Not to mention greatly reducing the available spacing to release the clutch. (sticking)
                              Greg

                              Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.”

                              ― Albert Einstein

                              80 SG Ol' Okie;79 engine & carbs w/pods, 45 pilots, 140 mains, Custom Mac 4 into 2 exhaust, ACCT,XS850 final drive,110/90/19 front tire,TKat fork brace, XS750 140 MPH speedometer, Vetter IV fairing, aftermarket hard bags and trunk, LG high back seat, XJ rear shocks.

                              The list changes.

                                Comment

                                • 3Phase
                                  XS-XJ Super Guru
                                  • May 2008
                                  • 5529
                                  • Simi Valley, CA
                                  #9
                                  Originally posted by BA80
                                  ... and you'll be doing wheelies.
                                  Testify!
                                  -- Scott
                                  _____
                                  ♬
                                  2004 ST1300A: No name... yet
                                  1982 XJ1100J: "Baby" SS Brakes, '850 FD, ACCT
                                  1980 XS1100G: "Columbo" SS Brakes, '850 FD, ACCT
                                  1979 XS1100SF: "Bush" W.I.P.
                                  1979 XS1100F: parts
                                  2018 Heritage Softail Classic 117 FLHCS SE: "Nanuk" It's DEAD, it's not just resting. It is an EX cycle.
                                  ♬

                                    Comment

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