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I did ignore it, and it is still present but much less noticable. Quite likely it has always been like it is now - it's only the episode from last year that makes me pay attention. So what have I done? Nothing except put about 5000 miles on a new clutch friction plate.

I have used proper switch cleaner on the last few switches, it doesn't make any difference to the life. Anyway, that's not really the point - it's just a switch and I would expect many years trouble free operation with no attention (like every other japanese bike I've owned). I note Chasbmw has neve...

is the front brake switch. They work normally for maybe 6 months, then they start to act up (I can hear arcing interfering with the radio - normally, but not always, when they are supposed to be on). Then with switch cleaner or WD40 etc. they will work for a few months more. Then they stop altogethe...

OK, thanks Rob. I'll assume it's the thrust bearings and ignore it.

Many thanks for the quick replies guys. My first thought was the ATU - it's fine. I hadn't considered the cables, but I checked last night - not that. I too wondered if it was normal behaviour but thought that would be uncharacteristic for BMW. From your responses I guess they don't all do it (and y...

R100RT. Does anyone know why the idle speed drops when I pull the clutch lever (doesn't matter whether it's in gear or not)? I changed the clutch thrust bearing thinking its the only thing that could be responsible (no difference), and checked the end float on the crankshaft - no discernable movemen...

Mine always leaks when I ride in the cold - it has to be around freezing.

I need to replace a leaking pushrod tube on my '79 R100. Haynes just says push the old one out, I have tried in the past to move one, and they seem pretty immoveable. What's the technique, heat the barrel up in an oven and then press?

Problem solved - the o ring got mashed during assembly. From the look of it, it somehow got tangled up around the exposed threads on the stud.

OK, I'll reseal with 3 bond or similar. That's a good point about checking the oil flow before running the engine- I hadn't thought of that. I can't help thinking there is something fundamentally wrong with the arrangement if it's necessary to 'help' an o ring with gasket compound though. In every o...