I'm not given to wild imagination, so just accept that this is not a joke... I discovered that there's no fuel filter on my bike, other than the coarse mesh on the standpipe. A quick snip of the line, in with a filter and I'm feeling much happier. On the way home from work (Thursday night) the bike misbehaves - it feels like fuel starvation so I pull over and, a minute later whetever was wrong fixed itself and I rode the last 2km home. Fast forward to today. Worried about why the bike died, and thinking I'd pinched a fuel line, I took of the tank and grabbed the fuel filter. Off fell a chunk of ice - yes - ice -as big as a 20c piece. It promptly melted on the garage floor. Now the bike has been in the shed, unused since Thursday and we haven't had any really cold nights here, so where the hell did the ice come from?