Moroso Accelerator Pump Diaphragm - Holley - 50cc

This is the accelerator pump diaphragm for Holley carburetors, specifically designed for 50cc applications. It’s a well-built replacement part that helps ensure your carburetor squirts fuel correctly when you hit the throttle. A properly functioning diaphragm is key to getting that immediate response from your engine.

When you press the gas pedal, the accelerator pump pushes a small amount of fuel into the intake manifold to prevent hesitation. This diaphragm is made from durable materials to withstand the fuel and pressure it encounters. If your engine is stumbling or hesitating when you accelerate, this diaphragm is a common part to check and replace.

This part is designed as a direct replacement for the original diaphragm in compatible Holley carburetors. Make sure to check your carburetor’s specific model and size to ensure this 50cc diaphragm is the correct fit for your application.