Excessive Vibration - suspect: new motor mount
Thread Starter
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6th Gear
Joined: May 2007
Posts: 12
Likes: 0
Excessive Vibration - suspect: new motor mount
I have a 2005 RK Custom.
Just had a major service at the dealer, and in the mean time replaced the original motor mount which was cracked. Had a tire change as well.
When I got the bike back went for a 60 mile ride on the highway, and to my surprise I had so much vibration at 60+ miles/hr that my feet and legs were numb.
Searched the forum for all related problems, made a list of 14 possible causes, and checked every one, every nut and bolt. Nothing found, and still got the vibration.
I have to conclude that it's the new motor mount (part # 16207-79D) that's causing the vibration. It seems from the past posts that many had problems with these (by the way I checked, they're not upside down).
Assuming this is the problem, I have come up with some solution options\\;
1) I found that some have used the Buell part # L0501.2, which is supposed to be the same as the original mount on my bike. Change to that?
2) Keep the new mount, add Velva Ride Engine Stabilizer Link. These are supposed to reduce the vibes quite a bit, but I read a couple of not-so-good review in previous posts as well.
3) Change the mount to Velva Ride motor Mount, and add Velva Ride Engine Stabilizer Link.
 \\;
At this point I need advice. What do you think of the above solutions?
And perhaps even more importantly, do you have any other suggestions? I'm sure the options I came up with are not comprehensive.
 \\;
Thanks in advance.
 \\;
Just had a major service at the dealer, and in the mean time replaced the original motor mount which was cracked. Had a tire change as well.
When I got the bike back went for a 60 mile ride on the highway, and to my surprise I had so much vibration at 60+ miles/hr that my feet and legs were numb.
Searched the forum for all related problems, made a list of 14 possible causes, and checked every one, every nut and bolt. Nothing found, and still got the vibration.
I have to conclude that it's the new motor mount (part # 16207-79D) that's causing the vibration. It seems from the past posts that many had problems with these (by the way I checked, they're not upside down).
Assuming this is the problem, I have come up with some solution options\\;
1) I found that some have used the Buell part # L0501.2, which is supposed to be the same as the original mount on my bike. Change to that?
2) Keep the new mount, add Velva Ride Engine Stabilizer Link. These are supposed to reduce the vibes quite a bit, but I read a couple of not-so-good review in previous posts as well.
3) Change the mount to Velva Ride motor Mount, and add Velva Ride Engine Stabilizer Link.
 \\;
At this point I need advice. What do you think of the above solutions?
And perhaps even more importantly, do you have any other suggestions? I'm sure the options I came up with are not comprehensive.
 \\;
Thanks in advance.
 \\;
Road Warrior
Joined: Jun 2007
Posts: 1,788
Likes: 4
From: Here
RE: Excessive Vibration - suspect: new motor mount
You say you checked every nut and bolt, but are you sure your new tire is balanced correctly? \\; They say "line this mark up with the valve stem" or whatever, but what if it wasn't quite right? \\; I've never had one out of balance on a bike, but I would assume that a slight out of balance would cause you a pretty good vibration in the seat of your pants.
Tourer
Joined: Mar 2007
Posts: 330
Likes: 18
From: Sacramento area
RE: Excessive Vibration - suspect: new motor mount
Seems a lot of complaints after changing the mount, including me. I re-torqued the nut to 20 ft lbs and used the Red locktite. Seems to be alittle better but might be wishful thinking !!
Road Master
Joined: Feb 2008
Posts: 791
Likes: 36
From: Edmonton, AB
RE: Excessive Vibration - suspect: new motor mount
If it was me, I'd take it back to where you had the work done and voice your concerns. Have them check it out thoroughly. If they don't resolve it to your satisfaction, take the bike somewhere else and get a second opinion.
Stellar HDF Member
Joined: Apr 2005
Posts: 3,108
Likes: 9
From: Lincolnton, NC
RE: Excessive Vibration - suspect: new motor mount
Grand HDF Member
Joined: Mar 2007
Posts: 4,928
Likes: 285
From: Edmond Oklahoma
RE: Excessive Vibration - suspect: new motor mount
I'm one of those that put on a new mount and got more vibration. But that is only between 1500 and 2000 rpms. I don't feel it at 60 mph.
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Thread Starter
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6th Gear
Joined: May 2007
Posts: 12
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RE: Excessive Vibration - suspect: new motor mount
Thanks for the quick and great iput guys.
 \\;
albertasaurus\\; I did, and got them to check everything as well\\; nothing! They're lost.
 \\;
matrix5\\; I got the dealer to double check and re-balance the wheels already. Sorry I forgot to mention in the original post.
 \\;
Neckball\\; that's a great reference for the Buell part. Already got on the phone to a dealer, but no stock, will have to order.
What do you think of adding the Velva Ride Engine Stabilizer Link as well?
 \\;
albertasaurus\\; I did, and got them to check everything as well\\; nothing! They're lost.
 \\;
matrix5\\; I got the dealer to double check and re-balance the wheels already. Sorry I forgot to mention in the original post.
 \\;
Neckball\\; that's a great reference for the Buell part. Already got on the phone to a dealer, but no stock, will have to order.
What do you think of adding the Velva Ride Engine Stabilizer Link as well?
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Advanced
Joined: Feb 2008
Posts: 81
Likes: 2
RE: Excessive Vibration - suspect: new motor mount
Worth a quick check is whether the motor mount plate is attached to the bosses on the motor correctly.
When I got mine back it vibrated like an old Sportster. The dealership spent six(!) hours going over the bike, aligning the motor mounts etc. No cure. They wanted to open the cases and check the flywheel balance at my expense. I refused.
A mechanic on his cig break in the lot looked at my bike for 30 seconds and saw that the motor mount was on top of the bosses instead of the bottom. The oil filter was hitting the rectifier.
When I got mine back it vibrated like an old Sportster. The dealership spent six(!) hours going over the bike, aligning the motor mounts etc. No cure. They wanted to open the cases and check the flywheel balance at my expense. I refused.
A mechanic on his cig break in the lot looked at my bike for 30 seconds and saw that the motor mount was on top of the bosses instead of the bottom. The oil filter was hitting the rectifier.
Tourer
Joined: Oct 2006
Posts: 486
Likes: 0
From: Texas!!
RE: Excessive Vibration - suspect: new motor mount
Just get the Velva Ride motor mount, much better than the Buel MM.
Forget about the Velva Ride Stab Links, they seem to have no effect one way or another.
Forget about the Velva Ride Stab Links, they seem to have no effect one way or another.