This 19mm/32mm carburetor with manual choke lever is most commonly used for (but not limited to) 50cc 70cc 90cc 110cc 125cc and 140cc ATVs and dirt bikes. Also applies to other models of Go karts / buggies and some manual shift scooters.
Manifold Inner Diameter: 18.1mm
Breather Inner Diameter: 32.8mm
Breather Outer Diameter: 36.8mm
Bolt Mount (centre to centre): 48mm