Yamaha - Carburetor Assembly 3 - Fuel Delivery System - 64F-14303-02-00

Overview

On these Yamaha multi-carb setups, each carb has to stay in sync or the whole engine starts acting off. I’ve seen engines with one weak carb struggle with idle and throttle, even when everything else checks out. Swapping in a fresh assembly like this usually brings things right back to smooth, even performance. It’s one of those fixes where you can feel the motor settle in and run the way it should again.

Key Features

• Complete Carburetor Assembly – Includes all internal components for a full replacement solution.
• Factory-Calibrated Fuel Delivery – Provides proper air-fuel mixture right out of the box.
• Smooth Engine Response – Helps eliminate hesitation and uneven throttle behavior.
• Durable Marine Construction – Built to handle fuel exposure and tough on-water conditions.

Engine & Boat Compatibility

Fits Yamaha outboard engines equipped with multi-carburetor fuel systems requiring a third carburetor assembly. Commonly used on small- to mid-range horsepower outboards across fishing boats, tenders, and recreational vessels.

FAQ

Q: What are signs this carburetor needs replacing?
A: Rough idle, hesitation, fuel leaks, or uneven engine performance are common signs.

Q: Do I need to sync the carbs after installing this?
A: Yes, syncing ensures all carburetors work together for smooth operation.

Q: Can I replace just one carburetor instead of all of them?
A: You can, but balanced performance is best when all carbs are in similar condition.

Q: How does old fuel affect carburetors?
A: It can clog internal passages and cause poor fuel delivery or sticking parts.

Q: Is installation something I can do myself?
A: It’s doable if you’re comfortable with fuel systems, but proper setup is important.

• Supersessions
  64F-14303-01-00, 64F-14303-00-00