Years ago I had a couple buddies with "easy rider" style choppers that they had built from the ground up. They worked on them all the time, but they seldom ran. Another buddy had a 1977 Electra Glide, all stock, ran all the time. I had to nag him just to get him to check tire pressure, but we were riding every weekend. Once, a stream of oil shot out the right side of the crankcase. A brass plug had come out of an oil gallery access hole. He scrounged around in the gutter and found a twig, broke a piece off and jammed it in the hole. Never removed it. I nagged him about it and the answer: "The brass plug the factory put in failed, the stick I jammed in is holding up just fine".