Motorcycles PD24J Carburetor Choke 24mm for GY6 125cc 150cc Scooter ATV 4 Stroke Accessories Motocross This carburetor choke is designed for 24mm PD24J carburetors used in GY6 engine models.Compatible with 125cc and 150cc , ATVs, and other 4-stroke engines, it supports proper cold-start by regulating the air-fuel mixture.The unit fits standard motocross and scooter applications requiring a choke mechanism for improved engine performance during startup.Installation is straightforward, integrating directly into existing carburetor setups. This is a replacement part from a third party.All brand/model references serve only to show intended compatibility.