That buzzing at 5200rpm... - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
DL650A - 2012-2016 DL650A 2012-2016 (L2-L6)

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post #1 of 13 Old 02-23-2018, 02:49 PM Thread Starter
KSM
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That buzzing at 5200rpm...

At around 5200rpm there is a buzzing/vibration sound that comes from somewhere toward the front of the bike.
I have read a bunch of threads regarding this issue and so far I don't think they address my bike (2012 DL650A).
I've only had it since December and have added/modded things since then. I've added a larger windshield (which amplifies any noises near the front) and I've added Givi crash bars.
I know the crash bars have been a source of this noise on other bikes, but these are new bars with new rubber o-rings fitted in the cross bar and I don't think this is the issue.
I know the front bolt on the gas tank has been an issue for some but I don't think that is the case here.
I'm not sure what else it might be.
Thanks for any suggestions.
Kyle

2012 DL650A (purchased Dec 2017)
2005 DRZ400S (sold Dec 2017)
1972 Norton Commando (sold 1984)
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post #2 of 13 Old 02-23-2018, 03:25 PM
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Quote:
Originally Posted by KSM View Post
I know the crash bars have been a source of this noise on other bikes, but these are new bars with new rubber o-rings fitted in the cross bar and I don't think this is the issue.

There are plenty of discussion about the Givi bars causing vibrations and noises. Was the noise there before you fitted the Givi bars? Or did you start noticing it after installation. With that knowledge I would remove one side of them and ride it to confirm.
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post #3 of 13 Old 02-23-2018, 03:36 PM
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So......when did it start?
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post #4 of 13 Old 02-23-2018, 03:47 PM
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Check the O-rings. One of my factory rings died in about 2 months. Pull one side of the bars and check the tube and the center pin. It will probably be bright metal at the point generating the buzzing. You could probably try seating the center pin in silicone adhesive or something too.

I purchased a dozen or so O-rings off e-Bay for a couple of bucks and I'm set for a while. It only takes about 10 minutes to pull one side, replace the rings then bot it all back together. That includes the time to find my @&$%! 3/8s socket wrench!
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post #5 of 13 Old 02-23-2018, 03:51 PM
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I bought a used 2012 last year and have put about 7500 miles on it. My experience is that some "vibes" seem to come and go, move around based on load, road, etc I have Givi hard bags, and if I run without the bags, I get some 4200 rpm buzz. Put the bags on, virtually nothing at 4200. I was surprised, but sure enough, the hard bag racks buzzed a bit without the bags attached. Makes sense when I think about it.

I also get a vibration at about 5200, but only if in 4th or 5th gear. Move up to 5500, or shift to 6th, smooths right out.

Put some foam grip puppies on your handlebars. It removed virtually all the handlebar buzz for me. (This was mostly at about 80-85 mph for handlebar buzz, slight but it bothered me) I "feel" the vibrations mostly in my butt or feet. Not very much, basically a smooth bike, with a few RPM spots of minor buzziness. Not enough of a bother to me to try to sort out. I do have engine guards as well, but Hepco Becker, not Givi.

Everything that was put on after the bike was made in Japan "may" be the cause of vibrations, according to smarter people than me. I bought mine with a ton of crap on it, so hard to say what might be the culprit. I have never ridden a stock Vstrom, just my well farkled one. I don't even know all the parts that have been swapped out!

As suggested, try running with/without some of the extra's, if it bothers you enough. Also, I notice when my chain needs some lube, I get more buzz. Make sure your chain is well lubed first, then do some testing.
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post #6 of 13 Old 02-25-2018, 10:46 AM Thread Starter
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I put so very few miles on the bike from when I bought it to when I added the windshield and crash bars, I'm not exactly sure when I began noticing the buzz. As it stands, I'm just going to live with it till it motivates me to do something about it. Thanks for the replies!
Kyle

2012 DL650A (purchased Dec 2017)
2005 DRZ400S (sold Dec 2017)
1972 Norton Commando (sold 1984)
1978 Suzuki DR370 (sold 1982)
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post #7 of 13 Old 02-25-2018, 02:39 PM
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On my bike it's a transitory vibration.

Happens at around 5300 RPM and then disappears at about 5600 rpm. One of these maintenance days I will try to resolve it, but for now I just think of it as an audible rpm notice.
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post #8 of 13 Old 02-25-2018, 03:09 PM
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That buzzing at 5200rpm...

My Puig crash bars were buzzing at 5,200. You could tell just by grabbing one or the other while riding. I loosened the big motor mount bolt(had it too tight) and put some black tape on the joint in front of the engine where the two sides come together. No more buzz.


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Last edited by Highwayman2016; 02-25-2018 at 03:15 PM.
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post #9 of 13 Old 02-25-2018, 03:24 PM
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I went with the Weld86 metal bash plate and noticed more "noise" after that install. The metal reflects back a frequency of noise that would otherwise be lost on the road surface.

All of the bikes I've owned had a "sweet spot" where engine rpm's, torque, and speed come together. A certain amount of noise is unavoidable. It's not a luxury car with carpeted floorboards and insulated doors...
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post #10 of 13 Old 02-26-2018, 12:20 PM
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The Givi Crash bars were the culprit on my Wee. GW had previously posted that the center bolt holding the 2 bars can loosen over time. I followed his advice and tightened the bolt, and this solved the problem - some fellow stromers have added silicone and other dampening material to help with the buzzing. I have since added a Enduro Guardian skid plate, which helps secure the GIVI crash bars - this also helps cure the buzzing.

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