Quite a few people around Vancouver use a converted Kubota alternator, called a McDougalator on their Vincent twins. It is a well engineered little unit that can give years of trouble free use. One of the local members mentioned to me that he had problems with the oil leaking out of his. Because of that I decided to check mine as part of my winter maintenance. It is a good thing I did. All the oil leaked out of mine in 8000 miles. I think the tiny amount of oil left was just enough to prevent the unit from seizing. They only contain 30 ml of oil. Has anyone else had this problem. I am thinking of adding a filler tube and a dip stick, so I don't have to remove the unit every 4000 miles to check it. Has anyone else done this?