Yamaha - Vapor Separator Tank (VST) Fuel Filter - F50/T50 F60/T60 F70 F75 F90 - 6C5-13915-00-00

Overview

A Yamaha VST, or Vapor Separator Tank, is part of the EFI fuel system that supplies steady high-pressure fuel to the injectors. A clogged VST filter, stuck float, or weak pump can cause hard starting, stalling, surging, or loss of power at higher RPM.

A smooth-running Yamaha really comes down to clean fuel, especially on midrange four-strokes that rely on precise fuel delivery. This VST fuel filter sits inside the system and catches fine debris before it ever reaches the injectors. When it’s doing its job, you won’t notice it—but when it’s clogged, you’ll feel it right away in idle quality and throttle response. Keeping this filter fresh is one of those small maintenance steps that helps your engine stay reliable every time you head out.

Key Features

• Contaminant Protection – Traps dirt, debris, and buildup before it reaches injectors.
• VST System Fitment – Designed to work seamlessly inside Yamaha’s VST fuel system.
• Marine-Ready Construction – Built to handle fuel exposure and harsh marine conditions.
• Consistent Fuel Delivery – Supports smooth acceleration, steady idle, and reliable power.

Engine & Boat Compatibility

Compatible with Yamaha midrange four-stroke outboards using this VST filter design, including common F and T series models.

FAQ

What does the VST fuel filter do?
It filters fuel inside the Vapor Separator Tank before it reaches the injectors.

What are signs this filter needs replacement?
Hard starts, sputtering, hesitation, or loss of power are common signs.

How often should this be replaced?
Typically during scheduled maintenance or when fuel system issues appear.

Can a clogged VST filter affect performance?
Yes, it can restrict fuel flow and lead to rough running or reduced power.

Is this the same as the main fuel filter?
No, this is a finer internal filter inside the VST system.

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.