another motor mount question
Road Master
Joined: Aug 2008
Posts: 1,069
Likes: 0
From: Way..Northern California
My bike is smooth at idle, I get a little vibes at 1500-1800 rpm but no more than I would think is normal. At idle the front mount looks like it is definitely taking out the vibes the way it is moving, and the bike is pretty smooth.
It is very important to follow the torque settings on the front mount, I think some may tighten down the center through bolt too tight which would cause excessive vibration. I believe the torque is 15-18 lbs, and it does not seem to be very tight at that setting but the mount needs to be able to do its job. I think the 79D works fine.
From what I have heard about the Buell mount, I would stay away from it.
It is very important to follow the torque settings on the front mount, I think some may tighten down the center through bolt too tight which would cause excessive vibration. I believe the torque is 15-18 lbs, and it does not seem to be very tight at that setting but the mount needs to be able to do its job. I think the 79D works fine.
From what I have heard about the Buell mount, I would stay away from it.
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Cruiser
Joined: Jun 2007
Posts: 213
Likes: 0
From:
Ditto on the Buell mount: Some say it works well but fails sooner than the HD mount.
Since I have the bike up on the table I'll did into this tomorrow and follow the torque setting carefully. Thanks!
Since I have the bike up on the table I'll did into this tomorrow and follow the torque setting carefully. Thanks!
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Cruiser
Joined: Jun 2007
Posts: 213
Likes: 0
From:
Installed new mount
Ok, Ive work on my EGC today and this is the results.
My main objective was to install the new revision motor mount hoping that it would reduce the vibration. But I also wanted to look into reducing the pull to the left. I have read threads on this and I wanted to try one idea. I did check the torque on the rear swing arm bushings, and then proceeded to install the new motor mount, the 97D the latest revision. After that I adjusted the top stabilizer in 1 ˝ turn to see if this would cure the pulling issue Then went for a ride, minus the saddle bags and felt very little pull, but this time it was in both directions. The bike would travel 100 or 200 feet and then drift to one side or the other.
Now I am thinking maybe the bushings in the rear swing arm may be causing this issue. But not to get too far ahead of myself, I returned to the barn, slipped on the saddlebags and went for another ride. Now mind you I carry about 15lbs in the left bag and as I went down the road, again she pulled to the left.
So now I am thinking is it the weight in the saddlebag??? Back to the barn and I emptied the bag out and again went on a test drive. Again I noticed a bit of a pull both ways. Nothing as drastic as the constant pull to the left that I experienced with the bag full.
So I believe that the way the weight is placed on the bike will cause the bike to pull in the direction of the heavier weight.
Tomorrow I will return the top stabilizer to the original position and again take her for a test drive. Hopefully I will have the same results as with the bags emptied...
As far as the new mount, I did notice about a 40% reduction in vibration.
My main objective was to install the new revision motor mount hoping that it would reduce the vibration. But I also wanted to look into reducing the pull to the left. I have read threads on this and I wanted to try one idea. I did check the torque on the rear swing arm bushings, and then proceeded to install the new motor mount, the 97D the latest revision. After that I adjusted the top stabilizer in 1 ˝ turn to see if this would cure the pulling issue Then went for a ride, minus the saddle bags and felt very little pull, but this time it was in both directions. The bike would travel 100 or 200 feet and then drift to one side or the other.
Now I am thinking maybe the bushings in the rear swing arm may be causing this issue. But not to get too far ahead of myself, I returned to the barn, slipped on the saddlebags and went for another ride. Now mind you I carry about 15lbs in the left bag and as I went down the road, again she pulled to the left.
So now I am thinking is it the weight in the saddlebag??? Back to the barn and I emptied the bag out and again went on a test drive. Again I noticed a bit of a pull both ways. Nothing as drastic as the constant pull to the left that I experienced with the bag full.
So I believe that the way the weight is placed on the bike will cause the bike to pull in the direction of the heavier weight.
Tomorrow I will return the top stabilizer to the original position and again take her for a test drive. Hopefully I will have the same results as with the bags emptied...
As far as the new mount, I did notice about a 40% reduction in vibration.
Road Master
Joined: Aug 2008
Posts: 1,069
Likes: 0
From: Way..Northern California
I never had a pull to the left problem, or even to the right for that matter. I have never adjusted the linkage rod though. I think it might be something else causing the problem?
Road Master
Joined: Oct 2005
Posts: 1,176
Likes: 1
From: Riverview, FL
Dealer replace MM on my 06 Ultra and the vibration got worse. I also had broked fairing monts. Bought a 09 Ultra and the newly designed moter mounts are great. Idle and running vibrations reduced by 2/3.
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Cruiser
Joined: Jun 2007
Posts: 213
Likes: 0
From:
The drifting may just be caused by unballanced loading of weight, and after adjusting the linkage rod back to the original position, I will know for sure if it was the weight issue causing the drift.
Cruiser
Joined: Sep 2005
Posts: 154
Likes: 1
From: Erie, PA
I checke my front mount (2006 RKC w / 8500 miles ) and the lower portion of the front mount is nearly gone. I have a service manual, but could not find specific instructions on replacing the mount. Do instructions come witht he new 79D mount or can someone post them. Thanks
watercop
watercop
Banned
Joined: Aug 2008
Posts: 581
Likes: 0
From: Langley
Ensure bike is upright/level, unbolt regulator, remove center link bolt, remove motor mount bolts, jack motor to replace mount.
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Thread Starter
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Cruiser
Joined: Jun 2007
Posts: 213
Likes: 0
From:
I checke my front mount (2006 RKC w / 8500 miles ) and the lower portion of the front mount is nearly gone. I have a service manual, but could not find specific instructions on replacing the mount. Do instructions come witht he new 79D mount or can someone post them. Thanks
watercop
watercop
Cruiser
Joined: Sep 2005
Posts: 154
Likes: 1
From: Erie, PA
Thanks guys
Went to the local dealer. I told them I needed a new mount for my 2006 RKC with 8500 miles. They seem surprised that it was broken and never heard of any bulletins and of course wanted retail price. They did acknowledge that the part number had been superceded a few times to the 79D and of course had to order it.....honestly there is far more knowledge and helpful experience
on this board that any dealer can offer
Went to the local dealer. I told them I needed a new mount for my 2006 RKC with 8500 miles. They seem surprised that it was broken and never heard of any bulletins and of course wanted retail price. They did acknowledge that the part number had been superceded a few times to the 79D and of course had to order it.....honestly there is far more knowledge and helpful experience
on this board that any dealer can offer