YAMAHA 6P2-13906-00 FUEL PRESSURE REGULATOR

Function and technical context

The fuel pressure regulator is a critical component in the power system of Yamaha outboard engines, responsible for maintaining a constant fuel pressure to the carburetor or injection system. This device works within the fuel supply line, between the tank and the carburetor, automatically regulating the pressure to adapt to the operating conditions of the engine. A faulty regulator causes fluctuations in fuel pressure, resulting in unstable idling, loss of acceleration, excessive petrol consumption or even unexpected stops while cruising.

When to replace this part?

Typical symptoms of governor failure include difficult starting, idle fluctuations, progressive loss of power, and fuel leaks at the governor connections. Although there is no fixed maintenance interval, it is recommended to check the condition of the regulator during each change of season or after 200-300 hours of operation. Replacing this component preventively on heavily used boats prevents emergency repairs at sea and ensures reliable engine operation throughout the sailing season.

Engine Compatibility Table

Equivalent manufacturer part numbers