I personally wouldn't try it with a long heavy gun like a '77, it's the getting on & off & petrol stations reactions thats the worst bits, carrying it on the bike isn't so bad. But what I would do is fill up that vfr of yours with fresh petrol & add a dose of redex for the first half a dozen fills to clean the fuel system out. Modern unleaded goes off after a month or 2 unless you add fuel stabiliser to it, it also leaves deposits in carbs or injection systems.I sorted out my sv650 rough running with this method when I first got it a couple of years ago & after every time i dont ride it for over a month. Right, now back to my fave film, the original bedazzled with peter cook & dudley moore.......