Author Topic: vibration at 5kish rpm  (Read 622 times)

0 Members and 1 Guest are viewing this topic.

Offline skamagedon

  • Mad Scientist-Gearhead
  • Hot Shot
  • ***
  • Posts: 295
  • My other car is a motorcycle
    • Arcade and pinball repair
vibration at 5kish rpm
« on: June 15, 2012, 11:44:24 PM »
In all gears, after complete rebuild, havent felt like pushing through to see if it goes away. Chain or cam chain capable of this? Smooth otherwise
1976 CB550 mutt "Tiger Pain"
(stock carb setup, unifilter, 4-2 baffled)
1976 CB360T "Resto Wifebike...wink wink"
Hot glue is your friend

Offline trueblue

  • A person who has had many interesting experiences, some of which are true, is known as an
  • Old Timer
  • ******
  • Posts: 3,124
Re: vibration at 5kish rpm
« Reply #1 on: June 16, 2012, 12:40:50 AM »
What sort of vibration is it, is it a heavy sort of vibration or a light buzz.  My 650 gets a vibration in it like I'm hanging onto an angle grinder at 5000rpm, from what I've heard this is normal, something you have to live with, I have put foam grips on mine so my hands don't go numb whilst riding.
1979 CB650Z
Nothing can be idiot proofed, the world keeps producing better idiots.
Electronic Guages for your SOHC 4

Offline dave500

  • Really Old Timer ...
  • *******
  • Posts: 17,064
  • WHAT?no gravy?
Re: vibration at 5kish rpm
« Reply #2 on: June 16, 2012, 01:35:28 AM »
carbs synced?out of sync carbs dont really cause high rpm vibe but its the edge you might need,,double check the points are timed correctly.

Offline Xnavylfr

  • Expert
  • ****
  • Posts: 1,102
  • Beers, Babes and bikes since 1965
Re: vibration at 5kish rpm
« Reply #3 on: June 16, 2012, 06:05:46 AM »
Make sure you have some slack in your drive chain!! If you have it too tight it will give you a viberation that progressively gets worse the faster you go!!!


Xnavylfr(CHUCK)