Great, just when I was getting ready to build my first go-cart.
Years and years ago my buddy ended up with a B&G engine. We went “havsies” on a centrifical clutch and built our version of a go-cart using the wheels and axles of a Red Flyer wagon and some lumber. Very narrow and high-centered! My buddy and I were the only ones that could drive it. We let others try but they would always tip over!
One winter I “tuned up” the engine. I’m guessing I was in the 6th grade. I ended up with a few bolts left over. It ran better than before I cleaned it up though!