Vibration after mods - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 31 Old 03-18-2017, 05:21 PM Thread Starter
 
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Vibration after mods

I installed the ravetech rad guard and now I can hear a metallic vibration at 3k rpm. All the bolts are tight, any ideas?

Also I just installed the givi crash bars and now there is a vibration at a certain rpm.

All the bolts are tight on this too. Curious to see if anyone had the same issue.
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post #2 of 31 Old 03-18-2017, 05:31 PM
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It is your Givi bars, the lower front brace vibrates due to no isolation between the joints.

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post #3 of 31 Old 03-18-2017, 05:37 PM Thread Starter
 
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Is there a fix for this?
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post #4 of 31 Old 03-18-2017, 05:40 PM
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Midwinter: My 2012 has the Suzuki crash bars installed. I too noticed increased vibes (especially in the 4200 to about 4600 range) after putting them on.
Some claim that inserting a rubber isolater (like a washer or grommet) between the left and right halves (in front of the radiator area) would help; it didn't, in my case. So, I figure that it is some sort of harmonic (of the engine vibes) being amplified by the bars. I notice it mostly in the footpegs, and not so much in the handlebars. I have written it off as a trade-off in the addition of more mass in places that are not optimal for vibration control...The irony: The RPM range of increased vibes is right where I do most of my riding !
-Freyguy

Last edited by freyguy17; 03-18-2017 at 05:44 PM.
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post #5 of 31 Old 03-18-2017, 05:43 PM Thread Starter
 
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Does anyone have the torque specs for the two short bolts and main frame bolt?

Where the two sections join and it has the two small hex screws, the screw head is directly above the exhaust and is very hard to tighten properly.
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post #6 of 31 Old 03-18-2017, 05:50 PM Thread Starter
 
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Also if you have torque specs for the upper two rad bolts and the lower fan bolt.

What about removing the spacer and using rtv all over the spacer and slide it back in?
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post #7 of 31 Old 03-18-2017, 07:19 PM
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You could try finding some rubber washers or make some out of sheet rubber and put them under the mounting bolts.
I know, fill the bars with lead shot and that should quell the vibes. That's a weighty idea though.
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post #8 of 31 Old 03-18-2017, 07:30 PM
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I seem to remember there being rubber O-rings on mine where they join together. Yes, just checked and there are two O-rings.
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post #9 of 31 Old 03-18-2017, 10:05 PM
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My bike developed a vibration after installing the center stand. This bike must not like accessories.
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post #10 of 31 Old 03-18-2017, 11:51 PM
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I also got vibrations after installing crash bars and skid plate.

I bought a large rubber mallet at Harbor Freight for $1.99 and cut off half the rubber and made a large spacer / dampener to go between the crash bars (in front of the radiator). Most of the vibs were eliminated.
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