Try Pro Honda spray cleaner & polisher or Original Bike Spirits spray cleaner & polisher on the body work and chrome it works grate. Bikers us it cuse it works. WD-40 the frame and motor than when your done hit whole kart with one of these, kart will look new.
Works great on all ATV, snowmobiles or anything like this. Also works for removing tar from along the bottom of your auto.
Can be found at any bike,ATV, or snowmobile shops.