Author Topic: '95 K75RT vibration/noise below 2500 rpm  (Read 125 times)

Offline REGerlach

  • Curious
  • Posts: 5
  • Live Slow Sail Fast
'95 K75RT vibration/noise below 2500 rpm
« on: September 04, 2019, 02:26:52 PM »
There is a low frequency vibration that occurs upon take off and always disappears at 2500 rpm.
Any comments or suggestions?
  • Swanton, MD
  • 1995 K75RT
Rob in Greensburg, PA

Offline The Mighty Gryphon

  • ^ Quintessential Motobricker
  • Posts: 4596
Re: '95 K75RT vibration/noise below 2500 rpm
« Reply #1 on: September 04, 2019, 03:54:20 PM »
I'm guessing the sloppy fit between the output shaft and the balance shaft.  Rattles and clanks between 1500 and 2000rpm on my K75RT.
  • In my garage in Marilla, NY
  • '94 K75RT Mystic Red, '91K100RS White/Blue, '89 K100RS Special edition White/Blue
Current:
'94 K75RT "Ilsa, She Wolf of the SS"
'91 K100RS "Moby Brick Too
'89 K100RS SE

Offline REGerlach

  • Curious
  • Posts: 5
  • Live Slow Sail Fast
Re: '95 K75RT vibration/noise below 2500 rpm
« Reply #2 on: September 06, 2019, 10:04:11 AM »
Thank you very much!
Thought it might be the resonant frequency of the Fairing.   Guess not.
  • Swanton, MD
  • 1995 K75RT
Rob in Greensburg, PA

Offline beemuker

  • ^ SuperNatural Motobricker
  • Posts: 548
Re: '95 K75RT vibration/noise below 2500 rpm
« Reply #3 on: September 06, 2019, 10:35:58 AM »
There is a low frequency vibration that occurs upon take off and always disappears at 2500 rpm.
Any comments or suggestions?
My 75s does it too. These engines don't seem to enjoy low RPM's
  • Panama City, FL
  • 94 K75s , Dakar yellow ABS

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