If your kart actually is a Manco, then you've got a top of the line go-kart. They're much stronger than Yerf-Dogs and have a much better grade of manufacturing.
and yeah the kid i got it from put the briggs on and took off the roll cage but hey i got it for free and it runs and im gonna go get some paint for it but should i take every thing off or just cover the motor with like a bag