Yamaha LF250ECB Outboard Motor

35-Inch Shaft | Counter Rotation | DEC | Electric Start | Power Trim & Tilt | Gray

The Yamaha LF250ECB is the counter-rotating version of Yamaha’s 250HP 4.2-liter V6, and it’s built for boats that run twins and need steadier tracking offshore. It’s a strong match for deeper-V hulls, fishing boats, and bigger multi-engine setups that see a mix of heavy loads, chop, and long days on the water. The engine puts out smooth mid-range torque and has the fuel efficiency this V6 line is known for.

Because it spins the opposite direction of a standard F250ECB, this model helps reduce wheel pull and keeps the boat running straighter, especially when you’re in rougher seas or maneuvering at slower speeds. The long 35-inch shaft gives the prop extra depth, which is important on tall transoms where the motor sits high above the waterline. DEC controls make throttle and shifting feel smooth and predictable, which is something you notice right away when docking or trimming up and down.

Key Features

•  250HP from Yamaha’s 4.2L V6
•  Counter-rotation for balanced handling in twin configurations
•  Yamaha Gray finish with corrosion protection
•  DEC throttle and shift
•   35” extra-long shaft for tall offshore transoms
•  Electric start
•  Power trim & tilt
• EFI for steady starts and good fuel economy

Frequently Asked Questions

Q: What does “ECB” mean?

A: “EC” identifies the 35-inch DEC offshore version, and “B” marks the model generation.

Q: Is this engine okay for saltwater?

A: Yes—Yamaha builds this line with heavy saltwater use in mind.

Q: Do I need to use it in a twin setup?

A: It’s made for twins but can be used as a single if you specifically want counter-rotation.