Use seafoam in gas use cap on can about 4 caps in tank jets need cleaning the newer engine factory set Lean very tiny restriction make engine roll up and down Ethanol gas pull water out air it dry on surface of jet opening a film that tiny film change size jet. All small engines made now are not suited for Ethanol gas only small engines suited for new gas are EFI engines because high pressure fuel pumps. The gas tank needs to be pressurized so want pull humidity in tank at night when humidity high. Gas supply can and engine needs to be stored in dry storage after one month old gas starts to pick up moisture in amount to cause problems. Seafoam extra cleaner for gas add to gas run short time to move cleaner into jet let set 20 minute run again should clean your carb if have inline filter that good.and cut off valve so run dry carb have vents for float bowl a place moisture can enter running dry to dry float bowl draining before storage better.