Reminds me of the Triton I had. Race spec Triumph 6T motor with alternator. Riding at night was good for about ten minutes, after which the lights dimmed and you had to pull over and run at a fast tickover fot several minutes to get enough charge to see again. Never knew whether to ride like a loon to get as far as possible before the light failed (bearing in mind the light was rubbish anyway) or ride sensibly and take twice as long. That and a clutch that needed cleaning every week, otherwise she wouldn't 'go over the top' fast enough to strike a light. And the Norton wideline frame that I couldn't get on with. Those were the days. Get ahead, get a BSA.