Trying to narrow down excessive vibration

**Balquin** · 05-26-2016, 04:16 AM

So I have been searching around the forum to find as many avenues as I can. I am looking into some of the options such as loosen and retorque the motor mounts and rebuild the counter balance. I'm hoping that having a BAK and fuel controller with stock debaffled pipes on an 08 Nomad isn't a contributing factor. I'm a bit off from getting my new pipes. I have done a few things to the bike to make it fit me better and be more comfortable but the darn vibration makes for quick numb butt on longer rides. I test rode some Indians and Harleys here recently and they were so smooth, it makes me really want to figure out my Nomad as I'm not anywhere near a new bike. Might even see if there's something out there like better rubber feet thingies for under the seat. I did a foam upgrade to the seats, should've done the gel layer in there...
Thanks for any insight anyone may provide!

VulcanJeff · 05-26-2016, 09:26 AM

Motor mounts is a good and obvious place to start. I have read on the forum that dry driveshaft splines can cause vibration. Low miles may not necessarily rule out such a possibility as it has been said that some bikes left the factory with nearly no lube.

VulcanE · 05-26-2016, 06:16 PM

As Jeff said, check the slip joint (the part of the drive shaft that goes onto the final drive), chances are it is dry. You are supposed to lube the splines, and put 20ml of high temp grease inside it, then put it all back together. I don't know where the grease goes, but every time mine starts having a vibration, lubing that joint takes care of it.

**Balquin** · 05-26-2016, 10:39 PM

I will definitely give that a check as well. I was hoping to not take things apart, but if that's a known issue, I will investigate. Really want to enjoy my ride for longer trips.

05-26-2016, 04:16 AM	#1
Balquin Join Date: Apr 2014 Location: Windsor, CO Posts: 83	Trying to narrow down excessive vibration So I have been searching around the forum to find as many avenues as I can. I am looking into some of the options such as loosen and retorque the motor mounts and rebuild the counter balance. I'm hoping that having a BAK and fuel controller with stock debaffled pipes on an 08 Nomad isn't a contributing factor. I'm a bit off from getting my new pipes. I have done a few things to the bike to make it fit me better and be more comfortable but the darn vibration makes for quick numb butt on longer rides. I test rode some Indians and Harleys here recently and they were so smooth, it makes me really want to figure out my Nomad as I'm not anywhere near a new bike. Might even see if there's something out there like better rubber feet thingies for under the seat. I did a foam upgrade to the seats, should've done the gel layer in there... Thanks for any insight anyone may provide! __________________ 2008 Nomad black/red VBA#2803 "It takes all types to make up this world and not one of them is missing." Login or Register to Remove Ads
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05-26-2016, 09:26 AM	#2
VulcanJeff Member Join Date: May 2015 Location: Galesburg, IL Posts: 309	Motor mounts is a good and obvious place to start. I have read on the forum that dry driveshaft splines can cause vibration. Low miles may not necessarily rule out such a possibility as it has been said that some bikes left the factory with nearly no lube. __________________ 2005 Vulcan 1600 Nomad - lovin' it! 2009 Vulcan 1700 Classic LT - gone, mostly forgotten 2005 Vulcan 1500 Classic FI - gone but not forgotten
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05-26-2016, 06:16 PM	#3
VulcanE Sr. Member Join Date: Jan 2008 Location: Cartersville, Georgia Posts: 4,838	As Jeff said, check the slip joint (the part of the drive shaft that goes onto the final drive), chances are it is dry. You are supposed to lube the splines, and put 20ml of high temp grease inside it, then put it all back together. I don't know where the grease goes, but every time mine starts having a vibration, lubing that joint takes care of it. __________________ Cliff "VulcanE" Evans 2005 Blue & Silver 1600 Nomad VBA # 320 VROC # 20381
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05-26-2016, 10:39 PM	#4
Balquin Join Date: Apr 2014 Location: Windsor, CO Posts: 83	I will definitely give that a check as well. I was hoping to not take things apart, but if that's a known issue, I will investigate. Really want to enjoy my ride for longer trips. __________________ 2008 Nomad black/red VBA#2803 "It takes all types to make up this world and not one of them is missing."
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