Carburetor Float – Fits Yamaha 9.9-40 HP Outboards (Replaces 63V-14985-00)
Carburetor Float – Fits Yamaha 9.9-40 HP Outboards (Replaces 63V-14985-00) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
Worry-free returns
You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Product Details
This aftermarket Carburetor Float – Fits Yamaha 9.9-40 HP Outboards (Replaces 63V-14985-00) is designed for Yamaha 2-Stroke outboard engines from 9.9 HP to 40 HP, covering models manufactured between 1984–2006. It ensures proper fuel level regulation within the carburetor assembly for reliable engine performance.
It serves as a direct replacement for Yamaha part number 63V-14985-00 and Sierra 18-7064.
- Installation: Direct OEM replacement for a hassle-free fit.
- Housing Material: Durable plastic/composite construction resists fuel and engine vibration.
- Essential Component: Critical for regulating the fuel level in the carburetor bowl.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha | 63V-14985-00 |
| Sierra | 18-7064 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This float is compatible with a wide range of Yamaha 2-stroke outboards from 1984 to 2006, including the popular 9.9 HP, 15 HP, 25 HP, 30 HP, and 40 HP series.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | 9.9FMH | 9.9 | 2-Stroke | 1984–2006 | 63V-14985-00 | |
| Yamaha | 15FMH | 15 | 2-Stroke | 1984–2006 | 63V-14985-00 | |
| Yamaha | E15DMH | 15 | 2-Stroke | 1984–2006 | 63V-14985-00 | |
| Yamaha | 25/30 Series | 25-30 | 2-Stroke | 1984–2006 | 63V-14985-00 | |
| Yamaha | 40 Series | 40 | 2-Stroke | 1984–2006 | 63V-14985-00 |
Technical Specs
- Product Type
- Carburetor Float
- Installation
- Direct OEM replacement
- Fuel Type
- Gasoline
- Housing Material
- Plastic/Composite
- Housing Color
- White
- Dimensions
- Height: 2.5; Width: 10.5; Length: 10.5;
- Other Technical Attributes
- Designed for fuel level regulation in carburetor assembly
What’s in the Box
- 1 x Carburetor Float (63V-14985-00)
Installation Notes
- Disconnect the battery and shut off the fuel supply to the engine.
- Carefully remove the carburetor assembly from the engine.
- Disassemble the carburetor bowl to access the old float.
- Gently remove the pivot pin and the old float, noting its orientation.
- Install the new carburetor float, ensuring it pivots freely without binding.
- Reassemble the carburetor bowl and reinstall the carburetor onto the engine.
- Reconnect the fuel line and battery, then inspect for leaks before starting the engine.
- Always consult your specific engine’s service manual for detailed instructions and float height specifications.
Troubleshooting & FAQ
How do I know if my carburetor float is failing?
Common signs include fuel leaking from the carburetor, the engine flooding, difficulty starting, or the engine running rough, especially at idle. A physical inspection may reveal that the float is cracked, saturated with fuel (heavy), or no longer buoyant.
Will this float fit models outside the specified 9.9-40 HP range?
This float is specifically designed for the Yamaha 9.9 HP to 40 HP 2-stroke series (1984–2006). Using it on other engine models is not recommended, as it can lead to incorrect fuel levels and poor engine performance or damage.
Does this float require adjustment after installation?
While this is a direct-fit replacement, it is always best practice to check the float height against the specifications in your engine's service manual. An incorrect float height can affect the air-fuel mixture.
What is the recommended maintenance for a carburetor float?
Carburetor floats do not have a fixed replacement schedule. They should be inspected during any routine carburetor cleaning or service, or if you are experiencing fuel system problems. Replace the float if it shows any signs of damage, wear, or fuel saturation.
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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