Too me that is great fun to hear a old setting engine come alive for the first time in years. I always start them with a gravety feed gas tank that I put 1/2 pint of outboard engine oil to each gallon of gas. Kinda gives it a bit of top end lube. I once started up a old pilot house dodge bob truck that hadn't moved in 35 years. Had to cut trees that had grew up thru the frame behind the cab. And I drove it home. no brakes , no insurance nothing but a emergency brake and a 5 gal can of gas. took the gravel back roads 25 miles to home. Bouncy ride with those flat spotted 8.25x 20 tires.