I have a scag turf tiger with the kohler aegis motor. Starts up fine but after 5 mins starts coughing here and there then eventually dies. it cranks but doesn’t start up. I leave it alone for while, then when I try again starts right back up like nothing wrong. Eventually does it again after using. Fuses good, changed fuel filter, air filter. Not sure if fuel pump or fuel regulator? What you guys think. Thx