Good on general procedure and specifications with several important reservations. If your bike is a 1976 or later model, this book does not cover the Keihin PD carbs at all. If your carburetors have the letters "PD" cast into the side of the housing, DO NOT follow this book's spec for float height or jet size and type. See the web forum SOHC4 (forums.sohc4.net) and query for Keihin PD carburetors. You'll find all the info you need there.