New guy from Florida

[AlbertG8]

Hi all, I'm new to the go kart scene. My kids (1 and 9 year old) love to drive so I have purchased a Yerf Dog 3203 used. It needs some work and that's why I am here.
I am a mechanic by trade but there are many differences between this and a car.

 

[Poboy kartman]

WAIT!!! WHAT? How come the axle sprocket is moved? What do you need to know???