Keeping today’s fuel-injected Yamaha outboards happy starts with clean, vapor-free gas—and that job falls squarely on the Vapor Separator Tank (VST) Fuel Filter 6FP-13915-00-00. This slim “sock” filter slips over the VST pickup on F75B, F90B, and VF90 engines, screening out the grit, varnish flakes, and water droplets that can starve your rail or fry an injector mid-run. The fine-mesh white media is heat-bonded to a black locking collar, so it won’t collapse under pump suction or let debris sneak around the edges.

Why it deserves a spot in your 100-hour kit:

• OEM-matched micron rating captures particles small enough to clog EFI hardware while letting fuel flow freely.

• One-piece molded collar snaps securely onto the pump standpipe—no fiddly clamps or tie-wraps.

• Low-profile “sock” design maximizes surface area in the cramped VST bowl, extending service intervals.

• Direct fit for 2017-present F75B, 2016-present F90B, and all VF90 models—drop in, prime, go.

Swap this filter when you notice a lazy cold start or during your annual service, and the next twist of the key will reward you with instant fire-up and crisp throttle response all season long.