To clarify, the cylinders are numbered 1,2,3,4 starting from radiator going to back (operator side). The firing order is 1,3,4,2. On the distributor tower, 1 is usually located near the 12:00 to 1:00 position, as viewed from operator's seat. Sometimes a previous owner will have done something more creative with the distributor, since they can be offset a bit and still made to work. Hope that is all clear, your description above didn't sound off to me, might be the way I read it.
'52 Cub ("Great Personality") 148xxx
'48 Cub with FH ("Gunny Cub") 38xxx
'57 Lambretta (a slow work in progress)
'74 Triumph TR6 (Mama's toy)