Make sure there is no ethanol in your gas.
Change your gas to Trufuel. Sold at most hardware stores, Ace, Home Depot, Lowes.
It’s a 45 min drive one way to get gas with no ethanol. Its about a dime higher and I have to get a fuel card from a small oil company and buy a minimum per month. I could live with about 5 gal a month, but I just don’t think it’s worth it. I’ve checked every station in my town and all have ethanol.
“Make sure there is no ethanol in your gas.”
It might take a little looking but some independent gas stations carry off road/classic car fuel wit no corn squeezings in it.