I guess I've been lucky with my '04 Sixty-5. When it was new (Aug '05) it stopped running because the fuse came apart, didn't blow just came apart. I shoved it back together and rode it home. I thought about replacing it with a modern style but had some of the old ones so used it and haven't replaced it since (12k plus miles). I do carry a spare.
These appear similar in lower amperage 'blow' ratings!!http://www.maplin.co.uk/module.aspx?ModuleNo=493&doy=29m3 Wonder if they are OK?