head shake - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
V-Strom Service and Maintenance Questions and Discussions Share your service and maintenance information-questions. Please include your year and model in the text of your post.

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 22 Old 08-09-2010, 06:49 PM Thread Starter
$tromtrooper
 
AncientMariner's Avatar
 
Join Date: Jul 2008
Location: Colorado Springs, CO
Posts: 183
Garage
head shake

First let me respectfully request that those of you inclined to reply, "ya think?" or "told ya!" please resist the temptation. I confess that by default I assume that bikes come from dealers with basic adjustments effected. I should know better from what I've seen on this site. This is for others like me who need encouragement to check things for themselves.

I recently returned from a trip on the Wee to the west coast. It was a good trip but it revealed worse handling than the V's. Following rutted pavement, it steered down slope, weaving side to side in the rut. It wasn't as bad as my old VW camper with bias ply tires, but it was much more noticeable than on the V. The V, on the other hand, weaves at speed, especially and shockingly in fast sweepers. The Wee starts to shake its head when riding in the buffeting wind behind a semi. The V doesn't. I got into a tank slapper on a gravel road a little over a year ago on the Wee and parked it upside down wounded in a cloud of sand. It was suggested that I fit a steering stabilizer but I always suspected that the problem was at least partly in the headstock adjustment. It took no effort at all to swing the bars.

First, I tried a punch to loosen the locknut but it was rather soft so I aborted the effort and ordered the freakinspendy Suzuki tools. Yesterday, I finally got around to using them. I took the steering head out to inspect the races and because I've heard that Suzuki is too stingy with the grease. I now believe it was a waste of time because while the amount of grease was pretty sparse, I'm sure it was sufficient. The bars turned smoothly with no notchiness.


The Wee is a 2006 with 13,000 miles. Above is exactly the way the bearings came out. Judge for yourself whether the amount of grease is enough for what is basically a hinge.

After I got the locknut and tab washer off, I turned the adjusting nut in the tightening direction to get an idea of my starting point. To my surprise, it went almost 1/3 turn before resistance began to be felt. I'd been expecting only a few degrees. However, this did play nicely into my theory about the cause of the Wee's bad manners.

A couple of lessons learned: Leave the front wheel on until the locknut is loosened. You can straddle the front wheel to hold it while you apply torque to the tighter nuts. Pay attention to where the cables are routed. When the fork legs come out, things flop around. I had to take the top triple clamp back off twice to move first the starter/brakelight cable and then the throttle cables to the correct sides of the fork legs.



I left the fork brace off for the test run. I found some mildly rutted pavement and could barely feel the effect. Then I ambushed a semi and followed it long enough to confirm that the headshake is gone.

Now, I wonder if the V has a milder case of the same disease. Also, my poorly adjusted headstock might explain why my fork braces had no noticeable effect on either Strom. They're meant to reduce fork flexing. There's no way a fork brace can compensate for a wobbly headstock.

Your results may vary.

'01 TTR125L, '01 plated WR426, '00 Super Sherpa, '81 KM100, '80 SR500, '78 XS650, '06 DL650, '10 MG V7 Classic, '12 MG Griso 8V SE, '12 VN1700 Nomad, dearly departed (totalled) '03 DL1000
-John

Last edited by AncientMariner; 08-09-2010 at 09:37 PM.
AncientMariner is offline  
Sponsored Links
Advertisement
 
post #2 of 22 Old 08-09-2010, 08:23 PM
Stromthusiast!
 
kenneth_moore's Avatar
 
Join Date: Nov 2007
Location: Fort Lauderdale FL
Posts: 2,452
Sorry to go off topic, but that's a pretty neat looking lifter thingy you've got there.

Oh, and "we told you so."

Go hakafugu yourself.
kenneth_moore is offline  
post #3 of 22 Old 08-09-2010, 09:41 PM
What Kinda Bike Is That?
 
Black Lab's Avatar
 
Join Date: Mar 2008
Location: Mount Desert Island, Maine
Posts: 5,520
Quote:
Originally Posted by AncientMariner View Post
but I always suspected that the problem was at least partly in the headstock adjustment.
I absolutely, firmly believe that the Wee-Wobble that quite a few riders have mentioned is solely due to Suzuki not tightening the head bearings enough during the manufacturing process.

Here is my thread on how I rectified this issue: Replacing Steering Head Bearings.

In this thread, you will also see the tool I made to remove the locking nuts. I know that, not everyone has access to some of the tools I do, (I used basic ones in hopes that others could copy what I did.), but it is an alternative to purchasing the "factory" wrench.

This is what I do now:

Mark where I like my handlebars.


Then remove the handlebar clamps and "ratchet" the handlebar up out of the way.

I use two "cinch straps" that are looped through two pieces of cable that I passed through two holes in my garage ceiling joists.




From there, I remove the stem nut, loosen the forkclamp bolts........and go from there.

B.

2007 DL-650 (I gave away in 2012 with 111,000 + miles)
"A word grows to a thought; a thought to an idea; an idea to an act. All the pieces are put together, and the whole is yours."
1942, Beryl Markham: "West With the Night"
"You can talk about doing a thing until everyone finally talks you out of it, or you can actually do the thing"
James Baldwin "Across Islands and Oceans"
Black Lab is offline  
 
post #4 of 22 Old 08-09-2010, 09:47 PM Thread Starter
$tromtrooper
 
AncientMariner's Avatar
 
Join Date: Jul 2008
Location: Colorado Springs, CO
Posts: 183
Garage
Yeah, I knew better.

The lift was a bit expensive but with ten bikes, it's been worth it. http://www.gregsmithequipment.com/Pr...ode=TPPROCYCLE

The scissor jack came in the same shipment as an accessory to the lift. Very handy, excellent for lifting the back end when the bike is on the lift. http://www.gregsmithequipment.com/Pr...oductCode=TPBJ

'01 TTR125L, '01 plated WR426, '00 Super Sherpa, '81 KM100, '80 SR500, '78 XS650, '06 DL650, '10 MG V7 Classic, '12 MG Griso 8V SE, '12 VN1700 Nomad, dearly departed (totalled) '03 DL1000
-John
AncientMariner is offline  
post #5 of 22 Old 08-10-2010, 07:57 AM
Stromthusiast!
 
BigTom's Avatar
 
Join Date: Aug 2009
Location: Yuma, AZ
Posts: 148
I've got a sicissors jack from a Toyota Celica. It's really small. and it's got a nice notch on the jacking surface. I've made plates to fit my bikes and the notch, it's slam dunk.

Edit: And really sorry to hijack this thread. This post was probably out of line. My bad. I'm going to leave it, but sorry!

Check my Website!!
[URL="http://motorcyclebackroads.com/"]Motorcycle Backroads[/URL]
[url]http://picasaweb.google.com/tom.bigs[/url]

Last edited by BigTom; 08-10-2010 at 11:29 AM.
BigTom is offline  
post #6 of 22 Old 08-10-2010, 11:59 AM
Stromthusiast!
 
kenneth_moore's Avatar
 
Join Date: Nov 2007
Location: Fort Lauderdale FL
Posts: 2,452
Quote:
Originally Posted by AncientMariner View Post
Yeah, I knew better.

The lift was a bit expensive but with ten bikes, it's been worth it. http://www.gregsmithequipment.com/Pr...ode=TPPROCYCLE

The scissor jack came in the same shipment as an accessory to the lift. Very handy, excellent for lifting the back end when the bike is on the lift. http://www.gregsmithequipment.com/Pr...oductCode=TPBJ
Thanks for the links and info. It looks like you have the "Black Jack" lift, is that right? Not too outrageous at $125, especially if it works on so many bikes.

Go hakafugu yourself.
kenneth_moore is offline  
post #7 of 22 Old 08-10-2010, 03:16 PM Thread Starter
$tromtrooper
 
AncientMariner's Avatar
 
Join Date: Jul 2008
Location: Colorado Springs, CO
Posts: 183
Garage
Yes. From the website, it looks like there have been some minor changes to both the jack and the lift since I got mine. The thing that makes the jack a bit more desirable than one from a Japanese car (I have one of those, too) is that the base is big enough to make it stable without having to attach a plate.

'01 TTR125L, '01 plated WR426, '00 Super Sherpa, '81 KM100, '80 SR500, '78 XS650, '06 DL650, '10 MG V7 Classic, '12 MG Griso 8V SE, '12 VN1700 Nomad, dearly departed (totalled) '03 DL1000
-John
AncientMariner is offline  
post #8 of 22 Old 08-14-2010, 05:31 PM
Stromthusiast!
 
exploring/carolina's Avatar
 
Join Date: Aug 2010
Location: North Carolina
Posts: 127
Wanted to share what I have been doing for the "wobble"
after reading many post on this forum.

Purchased a spanner nut tool to make it easy to adjust
steering head nut torque on my 08 DL650 with 20,000 miles.
Got it down to 30 minutes from start to finish using this tool.
Have other friends riding SV650 and Vstrom, so we can use
the tool on their bikes too. Left the Continental Road Attack,
3000 miles since new, on the front wheel while adjusting steering
head nut torque.

First attempt, the steering head nut was "really" loose, torqued to
32.5 ft lbs and backed off 1/4 turn, wobble was about the same.
Second attempt, torqued to 32.5 ft lbs and backed off 1/8 turn.
Wobble was better, but still there from 40 to 50 mph with hands
off of handlebars. Third attempt, torqued to 32.5 lbs, wobble still
the same as second attempt. Bike handled fine through twistys
after all attempts.

Next, removed front wheel assembly to check radial/lateral rim
run out with dial indicator. Radial & lateral measured less than
.018". Did not believe this to be the problem.

Installed & balanced a new front Bridgestone Trailwing 80/20
DS tire. Tested this morning and wobble "gone". Tested hands
off deceleration from 65 MPH to 30 MPH and front wheel smooth
as silk.

This experiment has me wondering how a "new" Continental Road
Attack would ride with a properly torqued steering head nut.

This was not real stable, but it worked out:



Steering spanner nut tool on spanner nut:



Other end of spanner nut tool:


Bill
2008 DL650
exploring/carolina is offline  
post #9 of 22 Old 08-14-2010, 05:37 PM
FORUM GODFATHER.....R.I.P. PAT
 
greywolf's Avatar
 
Join Date: Jan 2006
Location: Evanston IL USA
Posts: 38,049
Garage
My bike has been wobble free on a Trailwings, Dunlop D607s and Michelin Pilot roads. It wobbled at around 40mph on two Conti RAs. The first was so bad, I sent it back for the second which was not as bad, but it still wobbled. A number of people have posted about wobbles with Conti RAs and TAs as well as Tourances. It may just be your tire.

Pat- 2007 DL650A was ridden to all 48 contiguous states. I didn't quite make it to 17,000 miles on the 2012 DL650A.
Nicknames I use to lessen typing, Vee = 2002-2012 DL1000s. Vee2=2014-2016 DL1000s. Wee = 2004-2011 DL650s. Glee = 2012-2016 DL650s
See https://www.stromtrooper.com/general-...nicknames.html

Please vote in the poll on what Strom(s) you have at https://www.stromtrooper.com/informat...-you-have.html
greywolf is offline  
post #10 of 22 Old 08-14-2010, 05:46 PM
Stromthusiast!
 
exploring/carolina's Avatar
 
Join Date: Aug 2010
Location: North Carolina
Posts: 127
Quote:
Originally Posted by greywolf View Post
My bike has been wobble free on a Trailwings, Dunlop D607s and Michelin Pilot roads. It wobbled at around 40mph on two Conti RAs. The first was so bad, I sent it back for the second which was not as bad, but it still wobbled. A number of people have posted about wobbles with Conti RAs and TAs as well as Tourances. It may just be your tire.
Had been trying the Conti RA front & back for twisty riding, but will
see how the Trailwings work out. Will only get about 3500 miles on the
rear Conti RA before worn out. Appreciate the heads up on the Pilot
Roads & D607s.

Has anyone had headshake problems with a SV650 front wheel with sport
tire installed on the DL650?

Thanks,

Bill
2008 DL650

Last edited by exploring/carolina; 08-14-2010 at 05:48 PM. Reason: correction
exploring/carolina is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome