YAMAHA CARBURETOR 67D-14301-03 PAF4-04140000

Function and technical context

The carburetor is the component responsible for preparing the fuel and air mixture in the exact proportions required by the two-stroke engine for optimal operation. On Yamaha F4 outboard engines, this carburetor regulates the flow of fuel from the tank to the combustion chambers, ensuring efficient combustion throughout the rpm range. A carburetor in poor condition causes lean or rich mixtures, causing loss of power, excessive fuel consumption, excessive smoke in the exhaust and difficulty starting in cold water conditions.

When to replace this part?

The most common symptoms of a damaged carburetor include jerks during acceleration, unstable idling, difficulty starting after periods of inactivity, and varnish deposits in the internal passages that obstruct the passage of fuel. It is recommended to check the condition of the carburetor at the beginning of each boating season and, in case of prolonged storage, drain the residual fuel to avoid crystallization of the varnish. Preventively replacing the carburetor in case of obvious deterioration avoids emergency repairs during navigation and guarantees reliable engine operation.

Equivalent manufacturer part numbers