Help Please!\nI've just got my 1960, 6 volt, coil ignition, 600cc, Dommy back on the\nroad after a long lay-off and I'm plagued by a bit of 'no start, flat\nbattery' problem. Everything seems OK initially and even though the\nbattery is about 20 years old it seems to hold its charge when the\nbike is not in use. Start up from cold is good but after about 20\nminutes running the 'idle' becomes a bit erratic and the engine will\nquite often die on me. Investigation quite often shows that the\nbattery has gone totally flat on me and no amount of kicking will get\nit started again. Leave for about 30 minutes (time for a beer/coffee!)\nand the battery has recovered enough to give a spark and we're cooking\nagain. The ammeter shows a bit of a charge while the engine is running\nalthough it does 'kick' about a bit at about 60 mph and the\n'emergency' position about doubles the charge rate. I'm thinking\nbattery or rectifier, is it possible to test latter? An help/comments\nwould be very gratefully received.