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Re: [St] [ST] Front end vibration



My Daytona was doing that and I cured it by having the headstock bearing
tightened by the dealer, and backing off the front and preload and rebound
damping slightly -I had set it a touch hard.


cheers


Marc


On 7/5/07, Jeremy Witt <Jeremy@xxxxxxxxxxxxxxxxxxx> wrote:
>
> You've checked your fork oil recently, right?  I hear under/overfilled
> or particularly unevenly filled forks can cause this.
>
> Jeremy Witt
> Newbury Partners
> www.newburypartners.com
> (o) 603-893-3022
> (c) 603-475-4228
>
> -----Original Message-----
> From: st-bounces@xxxxxxxxxxxxxxxxxxxx
> [mailto:st-bounces@xxxxxxxxxxxxxxxxxxxx] On Behalf Of
> BrettWilson21@xxxxxxx
> Sent: Wednesday, July 04, 2007 5:42 AM
> To: ST@xxxxxxxxxxxxxx
> Subject: Re: [ST] Front end vibration
>
> I have a similar thing going on with my 05 ST.
>
> When cornering I can feel the front wanting to shake its head (tank
> slap) but
> its nothing violent, slight even and the bike always felt like it was
> handling ok.
>
> The other situation is when the throttle is shut off in a straight line.
> For
> instance when travelling at 100kph, I shut the throttle and can feel the
> front
> end wanting to shake. If I release the bars they start tank slapping, so
> of
> course I grab hold again and all is ok. At no time has the bike felt out
> of
> control.
>
> I was thinking it was a result of the front tyre cupping and wearing. So
> I
> have recently put two new tyres on (Shinko R003's) and the problem
> remains. I
> have experimented with tyres pressures, but this makes no difference.
>
> The only other thing I can think is that it may be suspension set up
> affecting geometry. as I'm still running the stock set up with 30mm sag.
>
> Not sure if what Gord is describing is anything similar to any of this
> but I
> found it interesting.
>
> Its certainly not something I have ever experienced on a motorcycle
> before.
>
> Brett.
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