Results 1 to 7 of 7

Thread: Sleepy tach fix...

  1. #1
    Join Date
    Apr 2019
    Location
    Nashville, TN
    Posts
    13

    Default Sleepy tach fix...

    So I had a 'sleepy tach', which it seems is not uncommon.
    I had already checked the engine 'innards' when I rebuilt the top end making sure the gearing and cable were okay...
    but the tack was only midly better, slow to respond and never seemed to reflect the actual rpm.
    After researching I decided to put some light oil in it.
    However, being lazy and in a hurry, I did the following:

    1. Unbolted the gauges, and with the cables still attached (this the lazy part) I gently turned them upside enough to take a few drops of light oil.
    2. After a couple hours I sprayed a shot of WD40 up the hole. (because I've fallen in love with WD40 again) And it seemed it needed some even lighter oil.
    3. After another hour I put another few drops of light oil in it.
    Having finished my projects and wanting to go for a ride the next morning, I cheated.
    4. I hooked up the air hose and blew a couple very light bursts, about 15psi up the shoot. (This is the impatient part)

    And all that did the trick. The tach works great, very responsive and quick, another problem eliminated from the list!
    Last edited by JoeNashville; 08-29-2021 at 06:26 AM.

  2. #2
    Join Date
    May 2004
    Location
    St. Catharines, On.
    Posts
    7,752

    Default

    Surprised that much lubricant and air pressure didn't cloud the tach face.
    Glad it solved your problem.
    2@ \'78 GS1000

  3. #3
    Join Date
    Jun 2018
    Location
    Mifflinburg, PA / Land of Tar & Chip
    Posts
    3,036

    Default

    Would not recommend spraying anything “up the shoot”. I think you got lucky.

  4. #4
    Join Date
    Apr 2019
    Location
    Nashville, TN
    Posts
    13

    Default

    It was very little lube total and very little air pressure. No luck involved, it's all knowledge, finesse and skill!

  5. #5
    Join Date
    Jan 2011
    Location
    NoMo, MN
    Posts
    3,452

    Default

    You don’t say...
    -Mal

    "The only reason for time is so that everything doesn't happen at once." - B. Banzai
    ___________

    78 GS750E

  6. #6
    Join Date
    Mar 2016
    Location
    Toronto Ontario
    Posts
    2,537

    Default

    Quote Originally Posted by JoeNashville View Post
    It was very little lube total and very little air pressure. No luck involved, it's all knowledge, finesse and skill!
    Or luck.
    ;,,,,,,,
    1983 GS 550 LD
    2009 BMW K1300s

  7. #7
    Join Date
    May 2004
    Location
    St. Catharines, On.
    Posts
    7,752

    Default

    Quote Originally Posted by JoeNashville View Post
    It was very little lube total and very little air pressure. No luck involved, it's all knowledge, finesse and skill!
    What about your good looks or does that go without saying?

    I would use only two or three drops of sewing machine oil for slow/noisy gauges.
    Again, glad it worked for you
    2@ \'78 GS1000

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •