Engine Mounts

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Jul 8, 2021 | 11:02 PM

#11

quikdyna

Advanced

Joined: Sep 2020

Posts: 69

Likes: 12

From: So Cal

The new mount will help. Check your steering head (neck) bearings to make sure they aren’t loose. I’d add the Sputhe or Posi-Trac stabilizers front and rear.

check your tire condition, balance and pressure too.

a steering stabilizer is a very good idea if you routinely go triple digits (I plead the 5th here).

Jul 12, 2021 | 06:27 PM

#12

DynaDood

Intermediate

Joined: Dec 2020

Posts: 37

Likes: 39

From: Lincoln

I run the sputhe stablizers and my bars are hard mounted with no bushings. It vibrates like a bitch at idle but once you get moving its smooth. Definitely fixed my death wobble though

Jul 12, 2021 | 06:38 PM

#13

TOE_CUTTER

Road Master

Joined: Oct 2017

Posts: 815

Likes: 292

From: Uptown Bay Area, Cali

Quote:

Originally Posted by DynaDood

I run the sputhe stablizers and my bars are hard mounted with no bushings. It vibrates like a bitch at idle but once you get moving its smooth. Definitely fixed my death wobble though

Kraus Risers will take of the vibration at idle and handle every bit as nice once moving also.

Dave

Jul 12, 2021 | 07:02 PM

#14

TOE_CUTTER

Road Master

Joined: Oct 2017

Posts: 815

Likes: 292

From: Uptown Bay Area, Cali

Quote:

Originally Posted by ando427

Thanks for all the feedback! A little more background, I have Ohlins blackline shocks on the rear, and a full inverted Ohlins front end on the... front (obviously). While that suspension improved a lot of the ride and handling, including improving the twitchiness, it still existed slightly, but not anything that prevented me from keeping up with friends on BMWs and sportbikes. However, recently I noticed that at high speeds (120+) I would get wobble in the front end even on straightaways. Shortly thereafter, on a long ride the bike suddenly developed a strange vibration upon deceleration and that's when I inspected the front motor mount and found that the rubber was completely torn on one side. I do all my own maintenance and have always been careful to put a piece of cardboard under the oil filter so that no oil would spill on the bike, but I guess after 25,000 miles the motor mount had just had enough.
Since my bike seemed to handle pretty well to begin with, I've decided I'm going to go with an OEM HD mount, see how that does, and then add the Sputhe stabilizers if I need more improvement.

As you can see, it is the rear that was moving around due to the worn-out front mount. It feels like the front, but it is not. The motor mounts are a consumable item, and the harder you ride, the less they last. The Sputhe stabilizers will help to remove some of the side loading on the mounts, and should help the mounts to last a little longer.

If you have a motorcycle alignment shop that has a CMM close to you, you can really get your bike dialed in alignment wise. Here is the Engine Equator 1 that you will need for the alignment shop to get the yaw axis dialed in:

https://customcycleengineering.net/motor-mounts/

Get the top mount link also from Sputhe to dial in the roll axis.

Hope that helps,

Dave