Does anyone know what a secondary valve is , how it works and why is it needed? Ran into one on a rototiller with a Briggs engine model 170VU. Thanks for any replies. Bill
That is not a valid Briggs model number. Carefully look at the engine, looking for three sets of numbers together. That will be the model, type and code numbers which will help us greatly. I've been working on engines for 40+ years and I have never heard of a secondary valve. Can you describe or enclose a pic of what you are talking about.
Does anyone know what a secondary valve is , how it works and why is it needed? Ran into one on a rototiller with a Briggs engine model 170VU. Thanks for any replies. Bill