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Author Topic: DRZ head shake/wobble  (Read 1395 times)

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Offline letsgofishing

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DRZ head shake/wobble
« on: December 12, 2007, 02:02:13 pm »
When I picked up the bike last week, soon as I hit 95-100kph, the front end started to wander - nothing too dramatic, just not a very secure feeling. Pumped the knobbies (Bridgestone Gritty's) to 1.4 bar - no change.
The rear was shot anyway, so put on a new set of Maxxis 6006's front and rear. The wobble now started at 105-110kph. Making the tyres harder made no difference. Took the bike to Jaco at KTM George - raised and lowered the forks - no real difference. He reckons I need a steering damper as the geometry of the front end is for enduro/racing. He fitted one to his KTM300 which had the same problem and said it made a huge difference.
Have now changed the gearing to 15/44 - bike is now stable up to 110kph - why this should make any difference, I don't understand.
Has anyone on the forum had a similar problem?
When replying, please state the tyres you have/had on the bike.
Thanks guys.
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Offline Beemer Man (RIP)

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Re: DRZ head shake/wobble
« Reply #1 on: December 12, 2007, 02:23:34 pm »
Did you sell your Katoom?? ???
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Offline Stofstreep

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Re: DRZ head shake/wobble
« Reply #2 on: December 12, 2007, 02:24:41 pm »
When I had the TA, I started getting head shake when I fitted Metzler Karoo's
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Offline Poffmuis

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Re: DRZ head shake/wobble
« Reply #3 on: December 12, 2007, 02:42:06 pm »
I have heard rumors of the steering headbearings not being installed properly or overtightened or something in that line on the DRZ. I have a decent pair of nobblies on and get an allowed bunch of vibration, but definitely no wobble. Take the top triple clamp off and check the tightness of the headbearing clamp/nut/adjust/whatever you want to call it.
 

Offline letsgofishing

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Re: DRZ head shake/wobble
« Reply #4 on: December 12, 2007, 03:55:36 pm »
Did you sell your Katoom?? ???

Someones coming to see it next week.
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Offline letsgofishing

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Re: DRZ head shake/wobble
« Reply #5 on: December 12, 2007, 03:56:50 pm »
I have heard rumors of the steering headbearings not being installed properly or overtightened or something in that line on the DRZ. I have a decent pair of nobblies on and get an allowed bunch of vibration, but definitely no wobble. Take the top triple clamp off and check the tightness of the headbearing clamp/nut/adjust/whatever you want to call it.


They seem OK, but will check them properly.
Thanks Newguy
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Offline Poffmuis

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Re: DRZ head shake/wobble
« Reply #6 on: December 12, 2007, 05:46:15 pm »
That nut needs to be only slightly tighter than hand tight. Put some good quality grease in there while your at it. The guys on thumpertalk grease theirs once a year.
 

Offline topbox

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Re: DRZ head shake/wobble
« Reply #7 on: December 12, 2007, 05:49:40 pm »
there is a problem,

tires,  tire pressure, handguards, front mudguard amongst other things......... something is wrong.
fitting a damper is hiding the symptoms and not solving the problem.
« Last Edit: December 12, 2007, 05:50:07 pm by topbox »
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Offline Sláinte Mhaith

Re: DRZ head shake/wobble
« Reply #8 on: December 12, 2007, 05:55:35 pm »
.
« Last Edit: June 27, 2012, 02:07:49 pm by Sláinte Mhaith »
 

Offline topbox

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Re: DRZ head shake/wobble
« Reply #9 on: December 12, 2007, 05:56:50 pm »
suspension settings ?
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Offline Sláinte Mhaith

Re: DRZ head shake/wobble
« Reply #10 on: December 12, 2007, 06:00:14 pm »
.
« Last Edit: June 27, 2012, 02:09:20 pm by Sláinte Mhaith »
 

Offline Uiltjie

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Re: DRZ head shake/wobble
« Reply #11 on: December 12, 2007, 06:19:05 pm »
I also get the same problem, only on very bad, rocky tracks, above 225km/h.




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Offline Poffmuis

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Re: DRZ head shake/wobble
« Reply #12 on: December 12, 2007, 08:33:37 pm »
 ;D ;D ;D ;D
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Offline Runner

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Re: DRZ head shake/wobble
« Reply #13 on: December 12, 2007, 08:35:13 pm »
I also get the same problem, only on very bad, rocky tracks, above 225km/h.




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Re: DRZ head shake/wobble
« Reply #14 on: December 12, 2007, 09:15:51 pm »
With 606's or any tyre for that matter I have never had headshake. Could be the steering stem bearings, check for proper adjustment and grease which Suzuki has short supply off it seems  >:D How is the 15/44 gearing working out for you ?
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Offline letsgofishing

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Re: DRZ head shake/wobble
« Reply #15 on: December 13, 2007, 08:09:09 am »
I have a similar problem, but at about 160, and not always.
BMW said it is the TKC up front.
The wind around the screen tugs at my arms.
Lifting one arm from the steering reduces it.
Wife on the back eliminates it.
Closing throttle eliminates it.


That works for me as well!
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Offline letsgofishing

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Re: DRZ head shake/wobble
« Reply #16 on: December 13, 2007, 08:11:01 am »
With 606's or any tyre for that matter I have never had headshake. Could be the steering stem bearings, check for proper adjustment and grease which Suzuki has short supply off it seems  >:D How is the 15/44 gearing working out for you ?

Jeez, DD - what a difference! Cruising at 100kph is now a pleasure - and there's still LOTS of acceleration when you need it!  ;D
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shark_za

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Re: DRZ head shake/wobble
« Reply #17 on: December 13, 2007, 08:27:38 am »

Lifting one arm from the steering reduces it.
Wife on the back eliminates it.
Closing throttle eliminates it.


Then what you are doing is holding on too tight and the buffeting on your shoulders is being sent to the bars.
Chill dude, its only a 400 ;)

 

Offline Sláinte Mhaith

Re: DRZ head shake/wobble
« Reply #18 on: December 13, 2007, 08:36:14 am »
.
« Last Edit: June 30, 2012, 02:45:43 pm by Sláinte Mhaith »
 

Offline letsgofishing

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Re: DRZ head shake/wobble
« Reply #19 on: December 13, 2007, 09:48:09 am »

Lifting one arm from the steering reduces it.
Wife on the back eliminates it.
Closing throttle eliminates it.


Then what you are doing is holding on too tight and the buffeting on your shoulders is being sent to the bars.
Chill dude, its only a 400 ;)



 ;D ;D ;D
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