Yamaha - Fuel Pump Gasket - Fuel Pump Sealing Component - 650-24431-A0-00

Overview

Anyone who has spent time maintaining Yamaha two-strokes knows the little sealing parts can make a big difference in how an engine runs. The Yamaha Fuel Pump Gasket 650-24431-A0-00 seals the fuel pump body so the system can hold proper suction and deliver steady fuel to the carburetors. When this gasket starts to wear or leak, the engine may stumble or struggle to stay consistent at mid-range throttle. Installing a fresh gasket helps restore clean fuel delivery and keeps the pump working the way Yamaha designed it.

Key Features

• Precision Fuel Pump Seal – Creates a tight seal between the fuel pump body and cover to maintain proper fuel pump pressure.

• Fuel Resistant Material Construction – Built from nitrile-bonded fiber that resists ethanol blended gasoline and marine heat cycles.

• Laser Cut Fitment – Bolt and pulse openings align perfectly with the pump housing to ensure proper fuel flow and suction.

• Compression Sealing Bead – Integrated sealing ridge helps compensate for minor surface imperfections on older pump housings.

• OEM Yamaha Identification – Factory part number embossing helps confirm genuine Yamaha components during future service.

Engine & Boat Compatibility

Compatible with select Yamaha carbureted two-stroke outboard engines that utilize this style of fuel pump gasket.

Refer to manufacturer fitment information to confirm compatibility with your specific Yamaha engine model.

FAQ

Q: What happens if a fuel pump gasket starts leaking?
A: The pump may lose suction, which can cause rough running, hesitation, or inconsistent fuel delivery.

Q: Should the gasket be replaced during a fuel pump rebuild?
A: Yes. Most technicians replace the gasket any time the fuel pump is disassembled to ensure a proper seal.

Q: Can a bad gasket cause mid-range engine hesitation?
A: It can. If the pump cannot maintain pressure, the engine may stumble when fuel demand increases.

Q: Do ethanol fuels affect older fuel system gaskets?
A: Ethanol can degrade older gasket materials, which is why fuel resistant materials are important.

Q: Is installation complicated?
A: No. Replacing the gasket is usually a quick service task when the fuel pump cover is removed.

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