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Carburetor for Yamaha 9.9/15 HP Two-Stroke Outboards, 1996–2003 – Replaces 63V-14301-00

Sale price $85.50 Regular price $136.00

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Product Details

This is an aftermarket replacement carburetor for Yamaha 9.9 HP and 15 HP two-stroke outboard engines from 1996 through 2003. It is intended for applications that use one of the listed Yamaha reference numbers and is supplied as a single carburetor assembly.

The assembly is listed as a replacement for Yamaha reference numbers 63V-14301-10-00, 63V-14301-00, and 63V-14301-01-00. It is also cross-referenced to aftermarket number 18-34603.

  • Replacement carburetor assembly for selected Yamaha two-stroke outboards.
  • Application range: Yamaha 9.9 HP and 15 HP two-stroke models, model years 1996–2003.
  • Single replacement component; this is not a kit.
  • Aftermarket part, not a Yamaha-branded OEM component.

Part Number Matrix

Use the following reference numbers to compare your original carburetor before ordering. Part-number matching alone does not replace verification of the engine model and year.

Reference Type Part Number
Yamaha reference 63V-14301-10-00
Yamaha reference 63V-14301-00
Yamaha reference 63V-14301-01-00
Aftermarket reference 18-34603

Engine Compatibility

The company fitment record identifies this carburetor for the following application range:

Brand Rated Horsepower Stroke Model Years Application
Yamaha Outboard 9.9 HP Two-stroke 1996–2003 Selected models using the listed reference numbers
Yamaha Outboard 15 HP Two-stroke 1996–2003 Selected models using the listed reference numbers

Important: This listing is not identified for Yamaha four-stroke engines. Confirm the exact engine model, model year, original carburetor and reference number before purchase. Do not rely on horsepower alone.

Technical Specifications

Product Type
Carburetor assembly
Application
Yamaha 9.9 HP and 15 HP two-stroke outboard engines
Model Years
1996–2003
Installation
Replacement installation; verify mounting and linkage details against the original part
Fuel Type
Gasoline
Product Configuration
Single carburetor assembly
Reference Numbers
63V-14301-10-00, 63V-14301-00, 63V-14301-01-00, and 18-34603
Product Classification
Aftermarket replacement part

What's in the Box

  • 1 x Carburetor assembly

Mounting gaskets, fuel filters and other service components are not included unless specifically shown or stated in the order details. A separate fuel filter assembly may be required for the engine service.

Installation Notes

  1. Confirm the engine model, model year, original carburetor configuration and reference number before beginning installation.
  2. Shut off the fuel supply, disconnect the battery where applicable, and allow the engine to cool completely.
  3. Remove the engine cowling and document the routing of the fuel line, throttle linkage and choke components.
  4. Disconnect the fuel line and control linkages, then remove the original carburetor from the intake assembly.
  5. Inspect the mounting surface and replace worn or damaged gaskets before installing the replacement carburetor.
  6. Install the replacement assembly and tighten the fasteners evenly according to the engine manufacturer's service procedures.
  7. Reconnect the fuel line and all control linkages. Confirm that the throttle and choke move freely through their full range.
  8. Restore the fuel supply and inspect all connections for leaks before starting the engine.
  9. Start the engine in a safe, well-ventilated area and check idle, acceleration, fuel delivery and leakage.
  10. If adjustment or synchronization is required, follow the applicable Yamaha service procedure or use a qualified marine technician.

Troubleshooting & FAQ

How do I confirm that this carburetor fits my engine?

Confirm all of the following: Yamaha brand, 9.9 HP or 15 HP rating, two-stroke engine configuration, model year from 1996 through 2003, and a matching original reference number such as 63V-14301-10-00, 63V-14301-00 or 63V-14301-01-00. Also compare the mounting points, linkage arrangement and images of the original component.

Does this carburetor fit Yamaha four-stroke engines?

No four-stroke application is identified for this product. The stated application is limited to selected Yamaha 9.9 HP and 15 HP two-stroke outboards from model years 1996–2003.

Is this a complete kit?

No. This product is a single carburetor assembly, not a multi-part kit. Fuel filters, mounting gaskets and other service parts are not included unless specifically listed with the order.

Is a gasket included?

A mounting gasket is not included in the stated package contents. Use a new gasket where required by the engine manufacturer's service procedure.

Is this an OEM Yamaha part?

No. This listing is for an aftermarket replacement carburetor. The Yamaha numbers shown are reference numbers used to help verify application and interchange.

What are common signs that a carburetor needs service?

Common symptoms can include difficult starting, unstable idle, stalling, hesitation during acceleration, poor running under load, fuel leakage or an incorrect fuel mixture. These symptoms can also result from fuel-system, ignition or compression problems, so diagnose the engine before replacing parts.

Can I install this carburetor without adjustment?

Installation and adjustment requirements vary by engine condition and application. After installation, inspect for leaks and verify idle and throttle operation. Follow the applicable service procedure and have adjustments performed by a qualified marine technician when necessary.

Safety & Important Information

  • Verify the exact engine model, model year, stroke type and original reference number before ordering.
  • Do not use the former four-stroke compatibility claim for this product; the documented application is two-stroke only.
  • Fuel is flammable. Work in a well-ventilated area away from ignition sources and clean up spills immediately.
  • Inspect all fuel connections for leaks before operating the engine.
  • Professional installation is recommended if you are unfamiliar with outboard fuel systems or carburetor adjustment.

About Sea Sierra

  • Marine Replacement Parts — Replacement components for selected outboard service applications.
  • Application-Focused Listings — Verify engine details and reference numbers before ordering.
  • Practical Support — Use the documented fitment and package information to select the correct replacement part.

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