I have a Briggs & Stratton that lived life on a snow blower through the 80s. About '90 it was made into a go-cart. That was stuffed into a corner a couple years later. Somewhere around '12 is was pulled out and shipped with the rest of my crap I left behind at my parent's place. That engine sat on a shelf in my garage until this year. In all that time that I knew it (starting about mid 80s) it has never had an oil change. This year I pulled it out and checked, still has oil in it. Added some gas and checked for spark. No spark. Pulled the flywheel and gave the points a quick brush with some 600 grit. Splashed some gas in the tank to dilute the orange bunk in the bottom and a little down the carb. Fired it up. It runs. Removed the muffler, got a length of 1" flex exhaust tubing and welded that to a ¾" nipple. Put the whole thing in the back yard and started it up, fiddled with the carb screws a little to get it to run as smooth as possible as rich as possible. Stuck the exhaust down a gopher hole and let it run a tank of gas. Found another tunnel a few days later while doing landscaping fixing the chewed irrigation line. Probably the same tunnel. Another half tank of gas. My uncle was having issues with gophers in a horse arena, so he has the engine now. That engine has oil in it that has to be 30 years old. It has been run and stored in poor locations early in its life. and is currently running in a poor state of tune intentionally. If a POS Briggs and Stratton can handle that, a new Honda will be just fine. An oil change can't hurt and doesn't cost much of anything. I am sure the fuel system will be in much better shape then the Briggs.