Firstly I fixed the power supply for my navigation system - now I can go places and hopefully arrive at my desired destination.
Secondly, for several months I've had an issue with my speedo. I've not rushed to fix it as I've not had much time and it only happened at speeds that I don't tend to reach on my daily commute.
I hadn't got round to posting about it on here - I'd mentioned it in passing on AF1 in response to someone else's problem ..... so here is the history of it that forum - along with today's solution .....
At last I've investigated this and solved the problem.D-Rider (on AF1) wrote:No, not checked anything yet - just not had time (which is why I'd not posted up about it before .... the original problem of this thread lured me into posting before I investigated)anzacinexile (on AF1) wrote:Have you checked the wiring/connectors etc.D-Rider (on AF1) wrote:
I've a strange issue with my speedo at the moment too - It's absolutely fine up to a "certain speed". Above that speed it jumps about a bit and the greater the margin by which you exceed that speed, the lower it reads.
It's certainly not the standard sensor failure (I had that some time ago and know what that's like) - though that doesn't rule out the sensor either.
The sensor sends a square wave to the dash which obviously increases in frequency the faster you go. With any wiring, as frequencies increase all manner of weirdness can happen if there's a large inductance/resistance in the line.
Failing that, the sensor maybe at fault if it cant switch fast enough
Just a thought.................
Checking the wiring is the first place I plan to start and I was also thinking that the pulse edges may not be square and cause greater problems at higher frequencies. Could be wiring, could be sensor, could be input circuit at the "clocks".
I began by measuring the voltages at the in-line connector - as per the workshop manual .... and they were fine.
I then popped the sensor out of the rear calliper mount and noticed that the face of it had been rubbing on the disk bolts - nothing major - the sensor is still intact, just a very gentle rubbing. Of course there is meant to be a gap (1.5mm +/- 1mm). Fortunately my handy O-ring kit provided a suitable spacer (my fibre-washer kit not quite having anything of sufficient diameter).
Took the bike for a blast and it all seems good.
So now you are wondering why, all of a sudden, the gap between sensor and bolts had disappeared.
Well I noticed this having happened after I fitted my BST carbon rims - it looks as though the disk carrier must be marginally offset compared to the Brembo and OZ versions.
I'll find out for sure when the OZ rims go back in for the winter.
.... I was lucky