EMOT-racing - Not something I see every day . This is a new-old-stock complete Japanese FUJI F500 engine. These engines were mounted in small scrambler bikes from famous US brand Indian. It
FUJI F500, 100cc Motorcycle HEAD & BASE Gasket Set. (Fuji 100-4) | eBay
FUJI F500 F480 100 80 CC INDIAN RUPP DECKSON HODAKA CHAPARRAL KAMI MANIFOLD | eBay