Lazy tach

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  • odin1
    Forum Mentor
    • Sep 2012
    • 260
    • Toronto, Canada

    #1

    Lazy tach

    Hi guys. I think I've got a lazy tach. When I was on the highway yesterday I noticed the tach reading around 8k and she sounded like she was in the red. Off the highway I noticed the tack stalling then spiking up at 8k. Anyone know how to fix this before I find a replacement.

    Thanks in advance
    1985 GSX750SF (BOTM March 2015)
    1986 GSX750SG (parts bike/project?)
  • tkent02
    Forum LongTimer
    Past Site Supporter
    • Jan 2006
    • 35571
    • Near South Park

    #2
    Cable ?
    http://img.photobucket.com/albums/v5...tatesMap-1.jpg

    Life is too short to ride an L.

    Comment

    • Charlie G
      Forum Guru
      Past Site Supporter
      Super Site Supporter
      • Feb 2009
      • 6440
      • Siskiyou county

      #3
      Twice I've had the cable end that goes into the tach spinning on the end of the cable. How ever it happened the end came loose from the cable. I didn't notice until I pulled on it. Replace the cable and keep under 8k rpms
      sigpic
      83 GS1100g
      2006 Triumph Sprint ST 1050

      Ohhhh!........Torque sweet Temptress.........always whispering.... a murmuring Siren

      Comment

      • Burque73
        Forum Sage
        Past Site Supporter
        • Mar 2016
        • 4729
        • Albuquerque, NM

        #4
        I'll be interested in the solution. Mine stays at zero when I start it then in a few seconds catches up. It's fine the rest of the time.
        Roger

        '83 GS850G Daily rider
        '82 GS1100GK Work in (slow) progress

        Comment

        • tkent02
          Forum LongTimer
          Past Site Supporter
          • Jan 2006
          • 35571
          • Near South Park

          #5
          Originally posted by Charlie G
          Replace the cable and keep under 8k rpms

          8,000?? Why? 750s need to spin.
          http://img.photobucket.com/albums/v5...tatesMap-1.jpg

          Life is too short to ride an L.

          Comment

          • Jedz123
            Forum Guru
            Past Site Supporter
            • Jul 2009
            • 5685
            • Centeral, Vermont

            #6
            Originally posted by tkent02
            8,000?? Why? 750s need to spin.
            Amen!!!

            I noticed when mine start to bounce or become lazy I pull the cable out spay the inside with a chain/Cable lube then re assemble... Works pretty good...

            Comment

            • trevor
              Forum LongTimer
              Past Site Supporter
              • Oct 2011
              • 18792
              • Victoria bc

              #7
              Originally posted by Jedz123
              Amen!!!

              I noticed when mine start to bounce or become lazy I pull the cable out spay the inside with a chain/Cable lube then re assemble... Works pretty good...
              Yep...me too.
              No signature :(

              Comment

              • odin1
                Forum Mentor
                • Sep 2012
                • 260
                • Toronto, Canada

                #8
                Originally posted by tkent02
                Cable ?
                I'm pretty sure it's electric.
                1985 GSX750SF (BOTM March 2015)
                1986 GSX750SG (parts bike/project?)

                Comment

                • dorkburger
                  Forum LongTimer
                  Past Site Supporter
                  • Jan 2013
                  • 10782
                  • Stupid Freehold Boro NJ

                  #9
                  I was wondering if it was electric or not. Mine is electronic and tends to waver around at times. I haven't yet been able to detect a pattern though.
                  sigpic
                  When consulting the magic 8 ball for advice, one must first ask it "will your answers be accurate?"

                  Glen
                  -85 1150 es - Plus size supermodel.
                  -Rusty old scooter.
                  Other things I like to photograph.....instagram.com/gs_junkie
                  https://www.instagram.com/glen_brenner/
                  https://www.flickr.com/photos/152267...7713345317771/

                  Comment

                  • odin1
                    Forum Mentor
                    • Sep 2012
                    • 260
                    • Toronto, Canada

                    #10
                    Originally posted by dorkburger
                    I was wondering if it was electric or not. Mine is electronic and tends to waver around at times. I haven't yet been able to detect a pattern though.
                    My pattern seems to be work perfect until you hit 8k then stay there until I crank it. Then spike up and fall back into place.
                    1985 GSX750SF (BOTM March 2015)
                    1986 GSX750SG (parts bike/project?)

                    Comment

                    • Charlie G
                      Forum Guru
                      Past Site Supporter
                      Super Site Supporter
                      • Feb 2009
                      • 6440
                      • Siskiyou county

                      #11
                      Originally posted by tkent02
                      8,000?? Why? 750s need to spin.
                      NO particular reason, just talking....
                      sigpic
                      83 GS1100g
                      2006 Triumph Sprint ST 1050

                      Ohhhh!........Torque sweet Temptress.........always whispering.... a murmuring Siren

                      Comment

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