Anyway, knowledge is power as they say, so please post the result on here Scootyman. If nothing else, it'll feed our curiosity. Thanks.
It turned out to be nothing more than two years of condensation build up. I’ve just been up to Skye and around the Highlands for four days and the bike ran perfectly. It never missed a beat and started every time without issue. The Pirelli tyres I fitted also were great. No sketchy moments despite some less than great road surfaces and a bit of leaning going on!