It is more affordable to replace the original carb than clean it. Many original carburetors are of lower quality and should be replaced with these quality carbs to ensure reliable performance. Visit online for tech tips and installation videos. Compatible with: GY6 style 125/150cc 4-stroke models. OEM replacement. GY6 125/150cc carburetor with a Male 2-prong electric choke. Intake: 24mm ID. Air filter mount: 42mm OD, 38mm ID. Increase the horsepower and airflow for your bike and have more fun with the power.