If you tell us what the words are in the center of the cooling air intake grille, that might help confirm that it is or isn't a Briggs, but we need the Model, Type and Code to get a specific answer to your question.
Meanwhile Joe Carroll or someone else with a shedful of Briggs engines of every conceivable type, might just cut to the chase and tell us what is broken and how to fix it, but that is less fun than tracing it all through the IPL.
