2006 Arctic Cat Y-6/Y-12 50cc and 90cc Service Manual, Page 57Get this manual
10Connect the gas hose to the carburetor; then install the float chamber drain hose and vent hose and route to appropriate locations11Install the gas tank and secure with two cap screws; then fill with appropriate-grade gasoline12Connect the ground wire to the drive belt cover 13Connect the battery positive cable first; then the negative cable