Motor mount replacement
Ultimate HDF Member
Joined: Dec 2008
Posts: 5,120
Likes: 17
From: Indiana
https://www.hdforums.com/forum/dyna-...ms-smooth.html
Here's the shimmed motor thread!! It does make a difference, unless you have a really bad mount. When I installed a new mount with the shims I was able to read signs about a 1/4 mile behind me in my mirrors at 70mph. I couldn't do that before.
https://www.hdforums.com/forum/dyna-...today-wow.html
Road Warrior
Joined: May 2008
Posts: 1,955
Likes: 6
From: Little Rock
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Road Master
Joined: Jul 2006
Posts: 754
Likes: 2
From: New Bern, NC
3000 miles on my first mount. Bike had a high frequency vibration, similar to a weed whacker. Afterwards, great!! I could read billboards through the mirrors it was so smooth. Gradually started buzzing again. I fixed mine by removing some of the rubber between the T-Mount and rubber isolator. Was going to shim mine when installing my Positrak, but did not need to. I've read many discussions on this issue. Everyone seems concerned about the pre-load on the rubber isolators and are looking for a solution to stop this vibration. The spacer gives the rubber isolator a little room to not hit the T-Mount which then transmits engine vibration to the chassis and into your hands and feet. There are lots of posts on this issue. Good Luck!
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Club Member
Joined: May 2006
Posts: 10,815
Likes: 16
From: Virginia
I probably should have mine looked at. I can put up with it and it ain't all that bad but I remmeber when I first got it that it seemed completely smooth out on the highway and you could see everything in the mirrors great. Now I get more vibration but not bad enough to bitch yet. Close to 30,000 miles on the original mounts.
Road Master
Joined: May 2006
Posts: 941
Likes: 27
From:
27k ish I believe, showed itself by way of my 200mm tire rubbing the fender (tight clearance). Front mount was shot and allowed side movement. Replaced both front and rear mounts along with installing a true trac to keep the side motion in check.