Yamaha - Float Chamber Gasket - Carburetor Sealing Component - 6H4-14984-00-00

Overview

The Yamaha Float Chamber Gasket | 6H4-14984-00-00 is one of those small parts that can cause big issues when it starts to fail. When it’s not sealing properly, you’ll usually notice fuel leaks, rough running, or inconsistent throttle response. It sits between the carburetor body and float chamber, keeping fuel contained and at the right level. If you’re opening up the carb for service, this is one of those parts you replace every time without question.

Key Features

• Secure Fuel Seal – Keeps the float chamber sealed to prevent leaks and maintain proper fuel levels.

• OEM Fit Precision – Designed to match Yamaha carburetor surfaces for reliable sealing and alignment.

• Stable Engine Operation – Helps maintain consistent fuel delivery and smooth performance.

• Fuel-Resistant Material – Built to handle constant exposure to fuel and engine heat.

Engine & Boat Compatibility

• 40 1989-2005
• 50 1989-2009
• 60 2001-2005
• 70 1992-2009
• 90 1992-2009
• B90 1997-1999
• C40 1997-2003
• C50 1998-2001
• C70 2000-2001
• C90 1997-2001
• P40 1998-1998
• P50 1991-1996
• P60 1992-1999
• P75 1996-1999
• PR50 1989-1989
• PRO50 1989-1990

FAQs

Q1: What are signs this gasket is failing?
A: Fuel leaks, strong fuel smell, or rough engine performance are common signs.

Q2: Can a bad gasket affect fuel delivery?
A: Yes, improper sealing can disrupt fuel levels and lead to inconsistent engine operation.

Q3: Should I replace this during carb maintenance?
A: Absolutely, it’s standard practice anytime the carburetor is opened.

Q4: Is installation difficult?
A: Not at all, just ensure surfaces are clean and the gasket is seated properly.

Q5: Does ethanol fuel affect gasket lifespan?
A: Over time it can, which is why regular inspection and replacement are important.

• Engine Application
  • 40 - 1989 to 2005
  • 50 - 1989 to 2009
  • 60 - 2001 to 2005
  • 70 - 1992 to 2009
  • 90 - 1992 to 2009
  • B90 - 1997 to 1999
  • C40 - 1997 to 2003
  • C50 - 1998 to 2001
  • C70 - 2000 to 2001
  • C90 - 1997 to 2001
  • P40 - 1998 to 1998
  • P50 - 1991 to 1996
  • P60 - 1992 to 1999
  • P75 - 1996 to 1999
  • PR50 - 1989 to 1989
  • PRO50 - 1989 to 1990