Yamaha 40HP | F40LA

Yamaha's F40LA is a 747cc, 40 hp, three-cylinder midrange engine mounted on a 20-inch shaft. It uses remote mechanical steering, starts on electric power, and weighs 214 pounds all together.

Tuned for quick starts

The intake side pairs a long-track manifold with a single throttle valve, a layout Yamaha built toward easy starting and brisk acceleration, which matters for boats that get up on plane repeatedly over the course of a day.

What's included

Power trim and tilt come standard, the motor steers through a link arm, and a fuel line ships along with the owner's manual. A propeller is not part of the package.

Picking a propeller

Since no prop comes with this motor, think about hull weight and typical load before buying one separately; a lower-pitch prop generally helps acceleration and load-carrying, while a higher-pitch prop favors top speed on a lighter boat running close to empty.

Why propeller instead of jet

This is the propeller-driven version of the F40 line, distinct from Yamaha's jet-pump-equipped siblings, and it's the better choice for open water rather than shallow or weedy running.

Fitment

Confirm the 20-inch shaft matches your transom and that remote mechanical steering hardware is already run to the stern; this unit is sold new.

Common questions

Is this propeller or jet driven? Propeller driven, which tends to run more efficiently in open water than a jet-pump motor of the same horsepower.

Does it include a prop? No, that purchase is separate from the motor itself.