Looking for information. My dr 400 has a vin number that is -DR400 100788- makes me believe it’s a 1978. Is this a possibility. It’s in great shape and I’m looking to restore it but can’t find information or parts for1978 dr400. It runs and drives but blue smoke like a chimney as soon as it starts until it’s shut off. I got new valve seals but not sure if I can get piston rings ifI do need them. I hear some other Suzukis will use the same parts. Any help is more that welcome. Thanks in advance. Im writing from Long Island New York