Needle Valve Assembly – Fits Yamaha Outboard Motors (626-14390-90-00)
Needle Valve Assembly – Fits Yamaha Outboard Motors (626-14390-90-00) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
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Needle Valve Assembly – Fits Yamaha Outboard Motors (626-14390-90-00)
Product Details
This is a genuine Yamaha Needle Valve Assembly, part number 626-14390-90-00, designed for use in the carburetors of specific Yamaha outboard motors. While it is an OEM component, detailed engine application information is limited, so verification against your service manual is recommended.
No direct aftermarket interchanges have been identified from available data; this listing is for the original Yamaha part.
- Installs as a critical carburetor component to regulate fuel flow.
- Designed for use with gasoline fuel systems.
- Authentic OEM part ensures precise fit and function.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha | 626-14390-90-00 |
Technical Specs
- Product Type
- Needle Valve Assembly
- Installation
- Carburetor Component
- Fuel Type
- Gasoline
- Dimensions
- 8.5" H x 9.5" W x 1.5" L
What’s in the Box
- 1 x Needle Valve Assembly (626-14390-90-00)
Installation Notes
- Ensure the engine is off and cool. Shut off the fuel supply and place a rag under the carburetor to catch spills.
- Drain the fuel from the carburetor float bowl.
- Carefully remove the float bowl, watching for the gasket or O-ring.
- Remove the float assembly by pulling out the hinge pin. The old needle valve is typically attached to the float.
- Detach the old needle and install the new one onto the float assembly.
- Reinstall the float and hinge pin, ensuring the needle seats correctly in the valve seat.
- Check the float height against your engine's service manual specifications.
- Reattach the float bowl and reconnect the fuel line.
- Turn the fuel supply back on and check for leaks before starting the engine.
Troubleshooting & FAQ
How do I confirm this part fits my engine?
Because specific model compatibility data is limited for this part, the best way to confirm fitment is by matching part number 626-14390-90-00 to the one listed in your engine's official service manual or parts diagram.
What are the signs of a failing needle valve?
Common symptoms include fuel leaking or dripping from the carburetor, the engine flooding with fuel, rough idling, stalling, or difficulty starting. These issues occur when the needle no longer creates a proper seal to shut off fuel flow.
Is any adjustment needed after installation?
The needle valve itself is not adjustable. However, it is critical to check and, if necessary, adjust the carburetor float height after installation. An incorrect float height will cause the wrong fuel level in the bowl, leading to poor engine performance.
How often should this part be replaced?
There is no set replacement interval. The needle valve should be inspected whenever the carburetor is serviced. Replace it if the rubber tip is hardened, deformed, or if the spring-loaded pin is stuck.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
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