Yamaha F250UCB 250HP V6 Offshore 30″ Shaft Outboard Motor

Yamaha 250HP F250UCB V6 Offshore 30in Shaft

The Yamaha 250HP F250UCB is a robust 4.2L V6 powerhouse featuring a 30-inch ultra-long shaft, designed for the tallest transoms on premium offshore center consoles and walkarounds. Utilizing a 4166cc big-bore displacement, this engine provides massive torque density without the weight of traditional steel cylinder liners, thanks to the application of Plasma Fusion technology. Its mechanical soul is built for structural integrity and high-speed reliability, delivering the mid-range punch required to get heavy vessels on plane quickly while maintaining a clean-burning, fuel-efficient profile.

Prioritizing long-term ownership value, the F250UCB leverages Multi-Point Precision EFI and Variable Camshaft Timing (VCT) to optimize power delivery at every RPM. The chassis is shielded by Yamaha’s proprietary multi-layered anti-corrosion system and sacrificial anodes to prevent galvanic wear during extended saltwater exposure. Routine maintenance is simplified by the front-mounted freshwater flush port and easy-access top-mount oil filter. This model includes a high-output 70-amp alternator (net), providing massive power reserves to maintain battery health and support essential navigational electronics and gyrostabilizers.

Key Features of Yamaha F250UCB

• 4166cc 24-Valve 60-Degree V6.
• 250 Horsepower Prop Shaft Rating.
• 30-Inch Shaft 583 lbs Weight.
• Digital Electronic Control (DEC) System.
• Variable Camshaft Timing (VCT).
• 70 Amp Total Output Alternator (Net).
• 1.75:1 Ratio Performance Gearcase.