Choke 4BD-26331-00-00 for YFB250 YFB250FW Timberwolf 250 4x4 1992-2000 ATV.This choke is designed to fit the specified model years and is intended for use in starting the engine under cold conditions by enriching the air-fuel mixture.It connects to the carburetor and operates manually to control airflow.The part replaces the and is compatible with the listed ATV models. Compatibility Disclaimer: This is an aftermarket replacement part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.