OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Engines Questions On Briggs & Stratton Engines 4hp Briggs and Stratton Quattro

Hi Peter, I have found a couple of similarities with the Quattro 40's over the years, but they may just be a coincidence.
Check you're valve clearances and breather on the valve cover. Try removing the air snorkel (if it has one) and then try starting the engine. The remote filter/snorkel setups for some reason seem to restrict the breathability (if thats a word) of the engine.