A two-engine classic is currently listed on Bring a Trailer for those who want a go-kart performance edge. This fully restored 1977 Hartman Blue Streak Sprint go-kart is powered by a pair of ...

When your Ford Ranger's 2.3-liter four-cylinder craps out, go to Harbor Freight—not for tools—but for a $150 212cc Predator two-stroke engine ... effectively a go-kart engine, one with ...