We need to know exactly what kind of Briggs that is, Harold. Please post the Model, Type and Code numbers stamped or printed on the engine. It sounds as if it is a Model 286H77, but we also need the Type and Code numbers, which will be right alongside the model number. Please do not omit any of the numbers (there is no such thing as a 286H7 engine).
Your engine is an Intek overhead valve single cylinder. It will have either a Nikki or a Walbro carburetor: please post pictures of the carburetor so we can tell which.
