EVO All Evo Model Discussion

New Vibration?

Old Oct 13, 2013 | 05:52 PM
  #1  
aces&8s's Avatar
aces&8s
Thread Starter
|
Seasoned HDF Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Sep 2012
Posts: 6,570
Likes: 590
From: almost there
Default New Vibration?

My back wheel axel Was not the same distance on both sides, so I did the adjustment. I made a 90*wire to measure from the swing arm hole to the center of the axel to make both sides the same length. Retorqued to 60 lbs.
Now about 2300 RPM I have a new vibration? Anybody know whats going on, or do I put it back where it was? Maybe the belt is out of wack?
 

Last edited by aces&8s; Oct 13, 2013 at 06:24 PM.
Reply
Old Oct 13, 2013 | 06:20 PM
  #2  
Jim Kraft's Avatar
Jim Kraft
Stellar HDF Member
15 Year Member
Photogenic
Photoriffic
Top Answer: 1
Joined: May 2009
Posts: 2,856
Likes: 127
From: Middle of Kansas
Default

Check your belt tension as it probably changed when you adjusted the alignment. Sometimes a little bit to much or to little will make it vibrate at certain rpm.
 
Reply
Old Oct 13, 2013 | 06:29 PM
  #3  
aces&8s's Avatar
aces&8s
Thread Starter
|
Seasoned HDF Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Sep 2012
Posts: 6,570
Likes: 590
From: almost there
Default

Originally Posted by Jim Kraft
Check your belt tension as it probably changed when you adjusted the alignment. Sometimes a little bit to much or to little will make it vibrate at certain rpm.
Thanks Jim, I did check it after I adj the axel. The belt deflected about 3/8 to 1/2 an inch, by the book.
 
Reply
Old Oct 13, 2013 | 06:51 PM
  #4  
HarDlife's Avatar
HarDlife
Road Warrior
Joined: Jul 2013
Posts: 1,476
Likes: 5
From: Florida
Default

Does it have any relation to mph, or just engine speed? Does the belt or tire have any unusual wear? Bearings okay? Dunno, just throwing ideas out...
 
Reply
Old Oct 13, 2013 | 06:57 PM
  #5  
aces&8s's Avatar
aces&8s
Thread Starter
|
Seasoned HDF Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Sep 2012
Posts: 6,570
Likes: 590
From: almost there
Default

Originally Posted by HarDlife
Does it have any relation to mph, or just engine speed? Does the belt or tire have any unusual wear? Bearings okay? Dunno, just throwing ideas out...
I notice it more in 1 &2nd gear pulling off. I just check the belt tension again and with the belt cold and no weight on the bike the belt is mor on the slack side of 3/4 inch deflection. could be I need to tighten. One time I check it it's 1/2 inch and next time it's 3/4 deflection. I check it when its cold.
Belt, tires, bearings are all good.
 

Last edited by aces&8s; Oct 13, 2013 at 07:01 PM.
Reply
Old Oct 13, 2013 | 08:33 PM
  #6  
Jim Kraft's Avatar
Jim Kraft
Stellar HDF Member
15 Year Member
Photogenic
Photoriffic
Top Answer: 1
Joined: May 2009
Posts: 2,856
Likes: 127
From: Middle of Kansas
Default

The belt should be checked in the tightest spot, but most people just check it where it is and that is usually OK. I align my back wheel different than the book says and have not had any trouble. I line it up so the belt is running in the middle of the rear pulley when turning the wheel forward. But I have measured it after doing this and it is usually with in a 1/32". I know others do it this way also.
 
Reply
Old Oct 14, 2013 | 02:35 AM
  #7  
Spanners39's Avatar
Spanners39
Seasoned HDF Member
15 Year Member
Photogenic
Liked
Loved
Joined: Dec 2010
Posts: 7,736
Likes: 1,524
From: Coromandel Peninsula New Zealand
Default

Check the tension cold
 
Reply
Old Oct 14, 2013 | 09:19 AM
  #8  
aces&8s's Avatar
aces&8s
Thread Starter
|
Seasoned HDF Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Sep 2012
Posts: 6,570
Likes: 590
From: almost there
Default

Thanks Span. I have check the belt cold and gone back thru everything again by the book. Iv checked the belt on the lift and on the grd with same deflection. I also rolled the wheel to it's tightest point before adjustment. Im about to go for a test drive to check out the vibration. Back in a bit.
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

Harley-Davidson Fat Boy Becomes a Dark, Decepticon-Inspired Custom

 Verdad Gallardo
story-1

6 Weirdest Harley-Davidsons Ever Sold to the Public

 Verdad Gallardo
story-2

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-3

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-4

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-5

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-6

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

 Verdad Gallardo
story-7

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

 Verdad Gallardo
story-8

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-9

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
Old Oct 14, 2013 | 02:27 PM
  #9  
aces&8s's Avatar
aces&8s
Thread Starter
|
Seasoned HDF Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Sep 2012
Posts: 6,570
Likes: 590
From: almost there
Default

I went all the way back thru it again. Belt is cold, Lift the bike & turned the wheel to tightest spot & readjusted. Vib Seems to be better. Now wondering if the Top engine mount might be needing adjusted to get everything right. Ill have to pull the tank for that.
 
Reply
Old Oct 14, 2013 | 03:19 PM
  #10  
Spanners39's Avatar
Spanners39
Seasoned HDF Member
15 Year Member
Photogenic
Liked
Loved
Joined: Dec 2010
Posts: 7,736
Likes: 1,524
From: Coromandel Peninsula New Zealand
Default

Top mount adjusts the vertical alignment of the motor and drive train, it shouldn't affect vibes unless it is loose.

You could try shimming the front mount, that often works.
 
Reply

Thread Tools
Search this Thread

All times are GMT -5. The time now is 04:55 PM.

story-0
Harley-Davidson Fat Boy Becomes a Dark, Decepticon-Inspired Custom

Slideshow: Killer Custom's latest build relies on styling changes rather than performance upgrades, giving the cruiser an entirely different personality.

By Verdad Gallardo | 2026-06-03 18:28:05


VIEW MORE
story-1
6 Weirdest Harley-Davidsons Ever Sold to the Public

Slideshow: From military-inspired singles to scooters and three-wheel utility vehicles, these Harleys took the company far outside its comfort zone.

By Verdad Gallardo | 2026-06-02 18:34:10


VIEW MORE
story-2
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-3
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-4
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-5
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-6
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-7
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-8
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-9
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE