Compatible with: 50cc 70cc 90cc 110cc 125cc ATV Dirt Bike and Go Kart horizontal engine Compatible with most Chinese ATV Dirt Bike Pit Bike-TaoTao, S-UNL, S-SR, B-aja, H-onda, B-uyang, C-oolsports, A-IM-EX, R-oketa, Kazuma 4-stroke horizontal engine. PZ19 carburetor with cable choke and air filter, choke on the right side with rear intake (if your intake pipe is facing forward, the choke is on the left side), air filter interface air outer diameter: 37 mm, intake pipe inner diameter: 19 mm, fixing screw distance: 48 mm. 35 mm air filter