Fuel Primer Pump Bulb – Fits Yamaha Outboards 6–90 HP (Replaces 6Y1-24360-00, 6YL-24360-6x Series)

Fuel Primer Pump Bulb – Fits Yamaha Outboards 6–90 HP

This fuel primer pump bulb is designed for reliable performance in Yamaha outboard fuel systems. It ensures proper fuel delivery from the tank to the engine, making it a crucial component for starting and smooth operation. Engineered for the marine environment, it is constructed with corrosion-resistant materials to withstand exposure to gasoline and saltwater.

This component is a direct replacement for a wide range of Yamaha 4-stroke outboards from 6 to 90 HP (model years 2000–present) and select 2-stroke models. It is designed to meet or exceed OEM specifications for fit and function.

• Fuel Compatibility: Designed for use with gasoline.
• Installation Profile: Mounts in-line with your existing fuel hose.
• Required Connection: Fits standard 1/4" (6mm) inner diameter fuel lines.

Part Number Cross-Reference

This part serves as a direct replacement for the following Yamaha OEM part numbers.

Compatible Engine Models

Confirm your engine model/year in the table below. For Yamaha owners, here’s a guide to help you identify your engine’s serial/model: Yamaha Serial Number Guide. You can also review exploded diagrams to verify part numbers: Yamaha Parts Diagrams & Catalog.

Technical Specifications

Package Contents

• 1 x Hand Primer Bulb (Replaces 6Y1-24360-00-00 / 6YL-24360-63-00)

Installation Guide

1. Ensure the engine is turned off and has had adequate time to cool down.
2. Locate the fuel line running between the fuel tank and the outboard engine.
3. Place a suitable container or absorbent rags underneath the connection points to catch any spilled fuel.
4. Carefully disconnect the old fuel line or primer bulb, paying attention to any clamps or fittings.
5. Observe the fuel flow arrow indicated on the new primer bulb. This arrow must point towards the engine.
6. Install the new bulb assembly in-line, confirming the correct orientation.
7. Securely attach the fuel lines to both ends of the primer bulb, and if necessary, secure them with hose clamps.
8. Squeeze the bulb repeatedly until it becomes firm, which indicates the fuel system is primed.
9. Visually inspect all connections for any signs of fuel leakage.
10. Once you have confirmed there are no leaks, start the engine and let it run for a few minutes to ensure it operates smoothly.

Troubleshooting & FAQ

Q: How do I confirm this fits my Yamaha engine?

A: This primer bulb fits most Yamaha 4-stroke outboards from 6–90 HP (2000–present) and select 2-stroke models. Please check your engine model against the "Compatible Engine Models" table and verify your original part number matches one of the numbers in the "Part Number Cross-Reference" table.

Q: What are the signs my fuel primer bulb needs replacing?

A: Common signs of a failing primer bulb include visible cracks, fuel leaks, the bulb feeling stiff or refusing to return to its original shape, or difficulty starting the engine due to a loss of prime.

Q: What size fuel line does this connect to?

A: This primer bulb is designed for a 1/4" (6mm) inner diameter fuel line.

Q: OEM vs. Aftermarket?

A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?

A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?

A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.