I've had a couple of ongoing 'character quirks' from my 2008 GRiSO 1100, and have got around to fixing them:
First one is an intermittent 'Oil Can Service' message on startup, that goes away on restarting.
Almost certainly a bad oil pressure switch, since the engine still runs fine. No noisier than the usual 'can o rocks'.
Replaced the switch (a front-bottom of a job) but following Roper-san's advice, and being paranoid also, I dropped the sump and spacer to check for a torn gasket.
It's OK, no tears, and I think the new switch fixed the problem now, but I found this graffiti on the sump: [You must be registered and logged in to see this image.]
'Spessore' is Italian for 'thickness'. So what is 30-40mm (or more likely a decimal ie .30 or .030) ???
Second issue is an ongoing raised Copper content in the Oil Analysis - I posted this back in Feb 2016:[You must be registered and logged in to see this image.]
I couldn't figure-out what was copper in the engine - until I dropped the sump and saw this honkin big pipe:[You must be registered and logged in to see this image.]
It looks like it is immersed in the engine oil, and transfers oil from one part of the sump to another. Is that so, what does it do ?
and could it possibly be leaching copper into the oil ?
I don't see any defects in the pipe, and they're on back-order anyway (156 Euro from Stin-Diese and 2-8 weeks, none in the US)
I'll order one if needed, but I'm really hoping Roper-san and GuzziSteve will advise - they've seen more Guzzi-Internals than I've had hot dinners...