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Dimensionally smaller battery - need advice on cold cranking amp requirements

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    #31
    Originally posted by Big T View Post
    While this is all a good idea, I believe you're over thing a problem that may not exist.
    Most 1085 owners have no problem starting the bike.
    Just modify your headlight lever and run it off when you start up
    No need to modify, the 78 has the on/off feature from the factory, for me it did not help, much.
    1978 Gs1085 compliments of Popy Yosh, Bandit 1200 wheels and front end, VM33 Smoothbores, Yosh exhaust, braced frame, ported polished head :cool:
    1983 Gs1100ESD, rebuild finished! Body paintwork happening winter 2017:D

    I would rather trust my bike to a technician that reads the service manual than some backyardigan that THINKS HE KNOWS how to fix things.

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      #32
      "You are not accounting for the higher compression ratio, the biggest factor applicable here.

      Factory compression ratio is much lower, on either a twin or 4 cylinder. Bump it up to 10.25:1 and you will see the problems with 175 CCA!"


      You may be correct, if it makes that much difference to go to 10-1 from 9.2-1. My Guzzi cranks pretty easy at 9.2 with large cylinders.
      Last edited by wymple; 10-19-2015, 10:56 AM.

      Comment


        #33
        Originally posted by posplayr View Post
        Posplayr,

        You are correct, sir - the directions I posted were the wrong ones and the advance graph does not show the retard to which you are referring - the proper directions, i.e. for the Dyna 2000 meant for the GS1000, show the additional 10 deg retard from 0 RPM to around 700 RPM.

        I stand corrected.
        Cogito ergo sum - "I think, therefore I am"
        René Descartes

        Comment


          #34
          Originally posted by Fjbj40 View Post
          No need to modify, the 78 has the on/off feature from the factory, for me it did not help, much.
          Actually, it didn't

          You had to remove the lever and file a bit of it off to allow it to move.


          But, my point stands. Going to a 1085 on my 78 never made a difference in starting
          1978 GS 1000 (since new)
          1979 GS 1000 (The Fridge, superbike replica project)
          1978 GS 1000 (parts)
          1981 GS 850 (anyone want a project?)
          1981 GPZ 550 (backroad screamer)
          1970 450 Mk IIID (THUMP!)
          2007 DRz 400S
          1999 ATK 490ES
          1994 DR 350SES

          Comment


            #35
            All 3 of my 78's had the on/off headlight switch.
            1978 Gs1085 compliments of Popy Yosh, Bandit 1200 wheels and front end, VM33 Smoothbores, Yosh exhaust, braced frame, ported polished head :cool:
            1983 Gs1100ESD, rebuild finished! Body paintwork happening winter 2017:D

            I would rather trust my bike to a technician that reads the service manual than some backyardigan that THINKS HE KNOWS how to fix things.

            Comment


              #36
              The 2 I've had running didn't. They changed the casting for the plastic lever and filled in the slot

              I haven't checked the ones in my parts bins

              Anyway, easy fix, remove screw, file plastic smooth, reinstall
              1978 GS 1000 (since new)
              1979 GS 1000 (The Fridge, superbike replica project)
              1978 GS 1000 (parts)
              1981 GS 850 (anyone want a project?)
              1981 GPZ 550 (backroad screamer)
              1970 450 Mk IIID (THUMP!)
              2007 DRz 400S
              1999 ATK 490ES
              1994 DR 350SES

              Comment


                #37
                Interesting, wonder if it an American model vs Canadian/European model thing?
                1978 Gs1085 compliments of Popy Yosh, Bandit 1200 wheels and front end, VM33 Smoothbores, Yosh exhaust, braced frame, ported polished head :cool:
                1983 Gs1100ESD, rebuild finished! Body paintwork happening winter 2017:D

                I would rather trust my bike to a technician that reads the service manual than some backyardigan that THINKS HE KNOWS how to fix things.

                Comment


                  #38
                  Yeah, it was a federal US thing, headlights on all the time

                  So, Suzuki recast the plastic switch so you couldn't move it down to off
                  1978 GS 1000 (since new)
                  1979 GS 1000 (The Fridge, superbike replica project)
                  1978 GS 1000 (parts)
                  1981 GS 850 (anyone want a project?)
                  1981 GPZ 550 (backroad screamer)
                  1970 450 Mk IIID (THUMP!)
                  2007 DRz 400S
                  1999 ATK 490ES
                  1994 DR 350SES

                  Comment

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