Years ago I remember an old guy telling when he bought new oil he immdeiately decanted it into a 5 litre pouring jug, then put the old drained oil into the new shiny oil container and left it outside his garage, every time it would disappear...
You need a fan cowl. Our 2a had a Series 3 rad in it with a fan cowl and the additional cowl you can get. You could run it all day without getting hot. A capillary gauge with numbers is excellent in these old motors to keep an eye on temps. The...