YAMAHA AIR FILTER GASKET 688-14416-01

Function and technical context

The air filter gasket is a critical component of the intake system on Yamaha outboard engines. This part ensures a tight seal between the air filter and the carburetor housing, preventing dust, dirt or moisture particles from entering directly into the combustion chamber. Poor sealing reduces filtration efficiency and can cause intake air contamination, affecting the air-fuel mixture and compromising engine performance. Its correct operation is essential to maintain combustion efficiency and extend the life of the cylinders.

When to replace this part?

This gasket should be inspected regularly during seasonal maintenance, especially on boats subject to saline conditions or very dusty environments. Symptoms of deterioration include loss of power, jerking during acceleration, difficulty starting cold, or unwanted air intake (audible as a carburetor hiss). It is recommended to replace it preventively every two seasons or when it shows signs of hardening, cracks or deformation. Replacing it preventively avoids costly damage to the engine and guarantees optimal operation while sailing.

Equivalent manufacturer part numbers