SuzukiSavage.com - new vibration at 10mph

DrunkenDwarf

Senior Member

Offline

Morning Zombie

Posts: 325
Seattle, WA
Gender: male

new vibration at 10mph
10/31/12 at 09:29:08

After all that's happened this week, it's no surprise that something isn't quite right.

I've notice a new vibration/shudder, but I can only seem to create it when coasting and it only happens for a brief period around 10 mph.

It feels like something is dragging or rubbing. It's not tied to engine speed. I didn't notice anything when spinning the wheels by hand.

Any ideas?

-D. Dwarf

Back to top

Pearl White 2007 S40; Dyna exhaust; Current jets: 52.5 w/ bleed (2 turns out) / 1.5mm (0.06") spacer / 150; raptor petcock

IP Logged

EJID Serious Thumper Offline Work to ride and ride to work. Posts: 1536 Pocatello, ID Gender:	Re: new vibration at 10mph Reply #1 - 10/31/12 at 09:34:23 You said that you smashed the turn signal, is it possible that you jar/twist the rear fender some? Do you have saddlebags/supports that might be bent in enough to rub on the tire? Just shooting ideas out here.
Back to top	05 S40 15" Memphis Slim, FXDWG Bars, Moved Rear Signals, Saddlebags, Fork Bag, Mini-Tach, Raptor, Cone Filter, Fishtail Muffler, Mix Screw Out 2.5 Turns, 4" Fwd Controls, 147.5 Main/55 Pilot @ 4500 IP Logged

Serowbot YaBB Moderator ModSquad Offline OK.... so what's the speed of dark? Posts: 28661 Tucson Az Gender:	Re: new vibration at 10mph Reply #2 - 10/31/12 at 09:36:08 Well,.. you've ruled out engine,.. so,.. check that the brakes aren't dragging,... warped rotor?... loose front drive pulley?... How old are the tires?...
Back to top	Ludicrous Speed !... ... ... IP Logged

justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: new vibration at 10mph Reply #3 - 10/31/12 at 09:47:11 Just 10 MPH? Heck, hang that thing up & put it in gear,, ( Note: Not recommended to allow the rear tire to contact the ground while spinning in gear without a rider) Just be careful, dont pollute yourself with Carbon Monoxide & get hung up in the spokes or belt.
Back to top	The people never give up their liberties but under some delusion.- Edmund Burke. IP Logged

DrunkenDwarf

Senior Member

Offline

Morning Zombie

Posts: 325
Seattle, WA
Gender: male

Re: new vibration at 10mph
Reply #4 - 10/31/12 at 09:47:32

No saddlebags.
Tires are brand new.
It's a new front wheel with an old rotor on it, maybe it's not perfectly lined up.
The front brake didn't appear to be dragging when I spun the wheel by hand.

It could be something in the rear. I'll see if it looks sideways.

It goes away under 10mph and over 10mph. I don't know what that has to do with it. Some harmonic frequency?

-D. Dwarf

Back to top

Pearl White 2007 S40; Dyna exhaust; Current jets: 52.5 w/ bleed (2 turns out) / 1.5mm (0.06") spacer / 150; raptor petcock

IP Logged

Dave YaBB Moderator ModSquad Offline SuzukiSavage.com Rocks! Posts: 18099 Camp Springs, Kentucky Gender:	Re: new vibration at 10mph Reply #5 - 10/31/12 at 09:49:41 I wonder if the drive belt gets some harmonic vibration at that speed? Maybe check your drive belt for tension.
Back to top	Someday I will be old......But not today! IP Logged

justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: new vibration at 10mph Reply #6 - 10/31/12 at 09:52:40 Any sound with it?
Back to top	The people never give up their liberties but under some delusion.- Edmund Burke. IP Logged

DrunkenDwarf Senior Member Offline Morning Zombie Posts: 325 Seattle, WA Gender:	Re: new vibration at 10mph Reply #7 - 10/31/12 at 10:44:59 I don't recall if there was a sound. I'll try to pay more attention on my ride home. I can feel it very distinctly in my foot pegs. Maybe something got loose when I dug the right peg into the pavement yesterday. -D. Dwarf
Back to top	Pearl White 2007 S40; Dyna exhaust; Current jets: 52.5 w/ bleed (2 turns out) / 1.5mm (0.06") spacer / 150; raptor petcock IP Logged

Arnold Serious Thumper Offline The dude abides... Posts: 896 Westchester, NY Gender:	Re: new vibration at 10mph Reply #8 - 10/31/12 at 10:55:29 I get a similar vibration but only when I slowly decelerate from around 55-60mph, been going on for months and it's annoying as hell. Do you think it come from internal engine?
Back to top	IP Logged

Serowbot YaBB Moderator ModSquad Offline OK.... so what's the speed of dark? Posts: 28661 Tucson Az Gender:	Re: new vibration at 10mph Reply #9 - 10/31/12 at 11:08:39 It's possible that the vibration was there all along,.. and your "peg readjustment" made it more apparent... ... also,.. once you have an oopsie,.. you become more focused on your bikes behavior... ...
Back to top	Ludicrous Speed !... ... ... IP Logged

Paraquat Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 2206	Re: new vibration at 10mph Reply #10 - 10/31/12 at 11:08:41 Did I read correctly you deflated and then reseated the front tire? Lose a weight? --Steve
Back to top	IP Logged

justin_o_guy2

Serious Thumper

Offline

What happened?

Posts: 55279
East Texas, 1/2 dallas/la.

Re: new vibration at 10mph
Reply #11 - 10/31/12 at 11:10:31

Serowbot wrote on 10/31/12 at 11:08:39:

It's possible that the vibration was there all along,.. and your "peg readjustment" made it more apparent...
... also,.. once you have an oopsie,.. you become more focused on your bikes behavior...

Huh

...

People pay a lot closer attention to a vehicle after a crash. I promise you, people inspect a car a lot closer when they pick it up from the body shop than when it came off the lot, new or used.

Back to top

The people never give up their liberties but under some delusion.- Edmund Burke.

IP Logged

Oldfeller--FSO Serious Thumper ModSquad Offline Hobby is now "concentrated neuropany" Posts: 12673 Fayetteville, NC Gender:	Re: new vibration at 10mph Reply #12 - 10/31/12 at 11:29:36 Did you retorque the motor mount/footpeg mount long bolts after your crash -- you stretched them, you know. Nothing can move without them moving too. Might as well retorque all three of the motor mounting long bolts down low and the three up at the top as well. If not, your motor may be moving on you due to loose bolts.
Back to top	Former Savage Owner IP Logged

DrunkenDwarf

Senior Member

Offline

Morning Zombie

Posts: 325
Seattle, WA
Gender: male

Re: new vibration at 10mph
Reply #13 - 10/31/12 at 11:57:56

Oldfeller--FSO wrote on 10/31/12 at 11:29:36:

Did you retorque the motor mount/footpeg mount long bolts after your crash -- you stretched them, you know. Nothing can move without them moving too.

Might as well retorque all three of the motor mounting long bolts down low and the three up at the top as well.

If not, your motor may be moving on you due to loose bolts.

I had thought about that, but didn't do it.

I'll add it to the list, may not get to it immediately. Sad

-D. Dwarf

Back to top

Pearl White 2007 S40; Dyna exhaust; Current jets: 52.5 w/ bleed (2 turns out) / 1.5mm (0.06") spacer / 150; raptor petcock

IP Logged