Damn Vibration
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Tourer
Joined: Oct 2007
Posts: 439
Likes: 22
From: League City, Texas
Damn Vibration
I know I've read about it in here, but wasn't sure when it usually started. I'm out of town on a short trip and right around when the odometer was closing in on 600, I got a horrible vibration. Foot pegs, highway pegs, grips and seat. No power loss that I can tell, just a damn horrible vibration between 2200 up to about 3200. At 3200 it gets smoother but it still vibrates.
Yes, I know Harleys vibrate but this is something that was not there in the first 500 miles of the bike. I'd search more on the forums, but I'm out of town and on a mobile device, so the search is a pain. Just looking to get a little feedback. It's a '14 Street Bob, 103, stock but running an FP3 with a map for stock pipes and intake.
Yes, I know Harleys vibrate but this is something that was not there in the first 500 miles of the bike. I'd search more on the forums, but I'm out of town and on a mobile device, so the search is a pain. Just looking to get a little feedback. It's a '14 Street Bob, 103, stock but running an FP3 with a map for stock pipes and intake.
Road Master
Joined: May 2014
Posts: 774
Likes: 320
From: St. Louis
Check your torque specs for all engine mounts as outlined in the manual. Check torque on all exhaust fasteners from the engine to the hanger mounts. Make sure your filter assembly is fastened down correctly. Once I had a loose air cleaner cover that drove me nuts with vibration until I found it. I now check all the above every oil change. It really reduces the gremlins.
Road Captain
Joined: Dec 2005
Posts: 673
Likes: 30
From: Warrington England
Look for Harley Service Bulletin M1324 & start from there,good luck sorting the Vibe,you'll get lots of "it's a Harley" posts,but there is a known problem with the Dyna rubber mount system.
Extreme HDF Member
Joined: Feb 2015
Posts: 10,907
Likes: 8,756
From: Galt's Gulch - MI
Double check the clearance of the top of the isolator to the engine bracket; if the rubber is contacting the engine bracket, it will increase vibrations. My front isolator collapsed and contacted the engine bracket early on, I replaced it at 600 miles on the ODO. W.Glide just recently posted his isolator was contacting the engine bracket with just over 1k on the bike. It does happen; many of us on the forum have gone to the Predator front mount, that OEM front isolator is a known issue...
Thread Starter
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Tourer
Joined: Oct 2007
Posts: 439
Likes: 22
From: League City, Texas
Yes, it gets worse on deceleration when I roll off the throttle and goes away when i pull in the clutch. I'm riding home today so I will get to check everything when I get home this afternoon. I might just change the front mount and be done with it, just because. Anyway, I'll post what I find after I get home. Thanks for all the replies.
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Tourer
Joined: Nov 2016
Posts: 261
Likes: 56
From: Springdale, Arkansas
Like Tincup posted, mine happened at just over 1K on my '16 Wide Glide and it was the front mount. The description of the vibration is exactly as you posted. While the T.S.B. will fix your problem for now, the dam mount will settle more over time and it will be back. The Predator mount is WELL worth it's price, and I went that route.
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Thread Starter
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Tourer
Joined: Oct 2007
Posts: 439
Likes: 22
From: League City, Texas
It was definitely the front mount. Absolutely zero clearance when I checked it. couldn't even fit a .010 feeler and that is as small as a I have. Even after loosening the bolts, lifting the motor and re-tightening, I can put in the .020 feeler gauge, but it has quite a bit of resistance. So, for a temp fix I can pull it apart and shave the rubber I guess. Anyway, thanks to everyone who replied so at least I know it wasn't something major.
Road Master
Joined: Feb 2009
Posts: 755
Likes: 222
From: Murrieta Ca.
It was definitely the front mount. Absolutely zero clearance when I checked it. couldn't even fit a .010 feeler and that is as small as a I have. Even after loosening the bolts, lifting the motor and re-tightening, I can put in the .020 feeler gauge, but it has quite a bit of resistance. So, for a temp fix I can pull it apart and shave the rubber I guess. Anyway, thanks to everyone who replied so at least I know it wasn't something major.
If you don't mind me asking, how many miles are on your bike, as I have a theory that the front mounts have a useable life span of 12K to 15K miles before they start to fail, a little more if you only ride freeways, a lot less if there oil soaked or abused.
Thanks: Mike