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Flush Your Motors, Not Your Time

BUILT FOR YAMAHA OUTBOARDS

Flushing a Yamaha is a two-handed chore. You have to unscrew the line, hold it steady, and twist on a hose—all while trying not to lose the O-ring overboard. This Quick Connect creates a permanent bridge; just snap the line on and off. It’s faster and easier on your hands.

ONE-HANDED GRAB

The factory Yamaha setup is a struggle. Our Quick Connect turns a cumbersome, two-handed threading chore into a simple, one-handed snap to get the water flowing in seconds.

NO MORE O-RING DROPS

Stop the O-ring drop. Our permanent bridge design keeps the factory seal locked in place, preventing gaskets from falling overboard or compromising your engine's cooling system.

flush port quick connect for yamaha close up

316 STAINLESS COMPONENTS

Equipped with a 316 Stainless Steel spring, our female adapter handles constant salt spray and UV exposure without seizing—ensuring a reliable, marine-grade seal every time.

triple yamaha boat leaving wake

LEAK-FREE AT TOP SPEEDS

Double O-rings on the male adapter ensure a rock-solid, airtight seal. This protects your cooling system from air leaks both at the dock and when running at wide-open throttle.

READY IN SECONDS

Installation is simple: screw the male piece into your flush line and the female adapter into the cowling. Click together and you're done—no tools or modifications required.

Designed for Conexiones más fuertes. Protección más inteligente. Outboards

Flush Port Quick Connect for Yamaha and Honda labeled render
Specs
  • Materiales:Construcción de grado marino con componentes internos de acero inoxidable 316
  • Instalación:Reemplaza el puerto de descarga OEM con una conexión segura y sin fugas
  • Protección contra la corrosión:Diseñado para agua salada y entornos hostiles.
  • Solicitud:Funciona con el sistema Flushmaster o conexión directa de manguera.
Comes With
  • (2) Conexiones rápidas hembra - negras
  • (1) Conexión rápida macho (doble junta tórica para garantizar que no haya fugas)
Installation
  1. Desenrosque el puerto de descarga de su Yamaha.
  2. Enrosque su nueva conexión rápida hembra Flushmaster en el lado macho.
  3. Tome su nueva pieza de conexión rápida macho Flushmaster y enrósquela en el lado hembra del puerto de descarga Yamaha.
  4. Conecte la segunda conexión rápida hembra Flushmaster al extremo de su suministro de agua.
Compatibility

Compatible con:

  • Motores fueraborda Yamaha 150-425 hp (con puerto de descarga)

NO compatible con:

  • Cualquier motor 2024 o 2025 que tenga 115 hp o menos
  • Motores fueraborda Yamaha 50 - 115 hp o 450 hp
Cargar video: Biggest Yamaha outboard flushing problems solved by flushmaster products

Why Conexiones más fuertes. Protección más inteligente. Owners Upgrade Their Flush Port

Factory flush ports can be difficult to access, awkward to use, and frustrating to connect—especially after a long day on the water. This video shows how the
Conexión rápida de puerto de descarga para Yamaha solves those issues by replacing the factory connection with a permanent, easy-to-use quick connect.

Watch Now

FAQs

Does this design stay on the engine while I'm running?

Yes. Since the Yamaha flush line must be secured to the cowling deadhead, our Quick Connect acts as a permanent bridge. The adapters stay snapped together while you’re underway, keeping the line secure and the system sealed exactly like the factory configuration.

Why should I use this instead of a Y-splitter?

Y-splitters divide your water volume, which often prevents a thorough flush at the top of the block. Because our Quick Connect makes swapping the hose take only two seconds, you can easily flush each engine individually with 100% water pressure to ensure all salt is removed.

Will the internal spring rust in saltwater?

No. We specifically use 316 Stainless Steel for the internal spring on the Yamaha model. It is designed to be exposed to the elements and salt spray full-time without corroding or losing its tension.

Can I use this without the Flushmaster Controller?

Yes. It works as a standalone manual upgrade. You just click your garden hose in for an easy 15-minute flush. We recommend the Controller for the convenience of not having to get back on the boat to swap hoses.

Is there a risk of the engine pulling air through the connection?

Actually, it’s safer than the factory setup. By using a double O-ring on the male adapter and keeping the connection permanently bridged, we eliminate the risk of the factory O-ring falling out or getting pinched, which is the leading cause of air leaks in the Yamaha flush system.

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