Hi folks -
Thanks for all the feedback, I've decided it would be wise to be spooked! I've talked to my dealer (Snells, Alton, well regarded in the UK) and ordered a new master cylinder (thanks for the heads up Doug), and they'll also look over the ABS and check for fault codes etc. I'll also have a close look at the ABS sensor and check the clearances - I guess it could be having a speed resolution issue. One other thing I've noticed is that on the sidestand while warming up the speedo sometimes indicates up to 2mph, so there might be an issue there too.
Thanks again for the advice, I'll keep you posted on progress.
Cheers - Nick
--- In st2_owners@yahoogroups.com, Jack <tdma@...> wrote:
>
> Nick, I wonder if the ABS just can't resolve wheel speeds when you're at
> a walking pace. Maybe it's trying to back off, because it can't tell?
>
> Jack in NC
>
> On 7/10/2012 3:28 AM, nickvale@... wrote:
> >
> > Hi All -
> >
> > Got my 2004 ST4s ABS back from 42,000 mile service, which included
> > brake and clutch fluid changes. Bike feels as awesome as ever, and
> > front brake feels much firmer now... apart from two or three times
> > over about 400 miles, at very low (walking pace) speeds, when the
> > lever's come back much further than usual before the brake engages.
> > The road surfaces were fine, and I was wondering if I might be getting
> > premature ABS (dis)engagement. I've checked all the brake lines and
> > around the pads, no sign of any fluid leak, and given the brake
> > pressure feels well solid for 99% of the time, I don't think there's
> > any problem with air in the system. But was wondering if anyone here
> > has any ideas? Google's been no help, and I'm slightly worried that
> > the next time it happens I'll not be going so slowly!
> >
> > Cheers - Nick
> >
> >
>
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