Yamaha - VST Float Chamber Gasket - Fuel System Seal - 66K-14984-00-00

Overview

When you’re working on the VST, this gasket is one of those parts you don’t reuse. It seals the float chamber and keeps fuel where it belongs, especially under pressure and heat. On these larger Yamaha two-strokes, a bad seal here can lead to leaks or inconsistent fuel delivery pretty quickly. It’s a simple part, but it plays a big role in keeping the fuel system tight and running right.

Key Features

• Secure VST Sealing – Provides a tight seal for the float chamber to prevent fuel leaks.

• Consistent Fuel Control – Helps maintain proper fuel levels inside the vapor separator tank.

• OEM Yamaha Fitment – Matches factory specs for accurate alignment and sealing.

• Heat-Resistant Material – Built to handle fuel exposure and engine heat cycles.

Engine & Boat Compatibility

• DX150 1999-2005
• L225 1999
• L250 1999
• LX150 1999-2001
• LX200 1999-2001
• LX225 2000-2003
• LX250 2000-2003
• LZ150 2000-2005
• LZ200 2000-2012
• LZ250 2003-2005
• LZ300 2004-2006
• PX150 1999
• S225 1999
• S250 1999
• SX150 1999-2004
• SX200 1999-2005
• SX225 2000-2003
• SX250 2000-2003
• V200 1999
• V225 1999
• VX150 2000-2004
• VX200 2000-2005
• VX225 2000-2004
• VX250 2002-2004
• VZ150 2000-2013
• VZ175 2001-2012
• VZ200 2001-2005
• VZ225 2003-2005
• VZ250 2003-2005
• VZ300 2004-2006
• Z150 2000-2005
• Z175 2001-2005
• Z200 2000-2012
• Z250 2003-2005
• Z300 2004-2006

FAQ

Q: What happens if the VST gasket leaks?
A: You can get fuel seepage, poor engine performance, or starting issues due to improper fuel pressure.

Q: Should I replace this gasket during VST service?
A: Yes, it’s best practice to install a new gasket anytime the float chamber is opened.

Q: Can a bad gasket affect fuel delivery?
A: It can, especially if it allows pressure loss inside the vapor separator tank.

Q: Is sealant required for installation?
A: No, this gasket is designed to seal properly on its own when installed correctly.

• Engine Application
  • DX150 - 1999 to 2005
  • L225 - 1999
  • L250 - 1999
  • LX150 - 1999 to 2001
  • LX200 - 1999 to 2001
  • LX225 - 2000 to 2003
  • LX250 - 2000 to 2003
  • LZ150 - 2000 to 2005
  • LZ200 - 2000 to 2012
  • LZ250 - 2003 to 2005
  • LZ300 - 2004 to 2006
  • PX150 - 1999
  • S225 - 1999
  • S250 - 1999
  • SX150 - 1999 to 2004
  • SX200 - 1999 to 2005
  • SX225 - 2000 to 2003
  • SX250 - 2000 to 2003
  • V200 - 1999
  • V225 - 1999
  • VX150 - 2000 to 2004
  • VX200 - 2000 to 2005
  • VX225 - 2000 to 2004
  • VX250 - 2002 to 2004
  • VZ150 - 2000 to 2013
  • VZ175 - 2001 to 2012
  • VZ200 - 2001 to 2005
  • VZ225 - 2003 to 2005
  • VZ250 - 2003 to 2005
  • VZ300 - 2004 to 2006
  • Z150 - 2000 to 2005
  • Z175 - 2001 to 2005
  • Z200 - 2000 to 2012
  • Z250 - 2003 to 2005
  • Z300 - 2004 to 2006