Dyna Vibration RPM range?

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Aug 24, 2016 | 07:35 PM

#31

unclericky

Tourer

Joined: Jan 2013

Posts: 286

Likes: 125

From: Mississippi

Quote:

Originally Posted by 883

I just expect Harleys to vibrate - sort of one upmanship really! I minimise vibes by finding the minimum sweet spot which is around 2800 for me. I must confess I can go from 0 to 70mph using 1st to 3rd without experiencing any real vibe hot spot. Vibrations are subjective. If you came off a 1000cc inline 4 on to virtually any Dyna, the vibes could drive you nuts - me I love them!

I was waiting at a gas pump one day on my Wide Glide, and an old biker asked me " do you know why that shakes the way it does? "
I said "why?"
He said " because it's a real motorcycle. "

Aug 26, 2016 | 09:58 PM

#32

99light

Advanced

Joined: Mar 2012

Posts: 77

Likes: 7

From: Ft Worth Tx

mine is a 13 Fat Bob, and i have a horrible rough vibration right around 2900-3500ish. I recently moved to CA and am riding about 100mile round trip to/from work. Its mostly noticeable in 5th gear, around 70-75mph.( also where i spend most of the ride) Its so bad it'll knock my feet off the pegs or rattle my head so bad i cant see.
The worst part is most of my ride is up/down the mountain and thats just about the speed you have to do to not be run over by the cagers. So im constantly speeding up/slowing to stay out of it and move around traffic. You can notice it a little bit in 3rd/4th and 6th, but its not nearly as bad, at least for 3rd/4th. I have only taken it to 85/90 ( same rpm for 6th) a few times and its there too, but at that speed with my size its not a pleasant experience. I feel like a Drag Car Parachute at that point.

Aug 26, 2016 | 11:35 PM

#33

NORTY FLATZ

Seasoned HDF Member

Joined: Jan 2015

Posts: 15,943

Likes: 7,037

From: Sandy Eggo's North County

After riding a few hundred rubber mounted Harleys, I discovered that the "looser" mounts transmit less shaking energy to the frame. This makes for a smoother ride. A simple fix may be a simple engine mount change. Something to think about...

Aug 29, 2016 | 07:27 AM

#34

rich56

Cruiser

Joined: May 2016

Posts: 103

Likes: 23

From: Union NJ

So which mount?

Quote:

Originally Posted by NORTY FLATZ

Which mounts are looser and tighter?
My 09 FXD vibrates much more than my brothers 06 Steet Bob so I know less is possible.

Aug 31, 2016 | 11:38 PM

#35

Max Headflow

Thread Starter

Seasoned HDF Member

Joined: Dec 2005

Posts: 19,830

Likes: 7,968

From: poway

For those of you that want to measure vibes..

The velocity measurement looks to be the most consistent.

Sep 1, 2016 | 10:55 AM

#36

F86

Outstanding HDF Member

Joined: Mar 2015

Posts: 2,840

Likes: 900

From: Philly Suburbs

Quote:

Originally Posted by bwoltz

For those of you that want to measure vibes.. The velocity measurement looks to be the most consistent.

Interesting...

Sep 2, 2016 | 09:18 PM

#37

soniccbr

Tourer

Joined: Jul 2010

Posts: 274

Likes: 7

From: Western Pa

Mine can change from just a buzz through the pegs to shake so bad my vision is blurry from one ride to the next. Makes me so mad, if I can't fix it soon it's getting sold.
No tach, but it's at highway speeds, so around 3 grand 4th 5th 6th don't matter.

Sep 4, 2016 | 11:33 PM

#38

99light

Advanced

Joined: Mar 2012

Posts: 77

Likes: 7

From: Ft Worth Tx

Quote:

Originally Posted by soniccbr

This sounds like the same issue i have. This is my third Harley with a 103 and its the only Dyna, and only one that has this terrible vibration issue.