Sign Up

Performance Bulletin


Engine: Yamaha F300USB2
Boat: Cobia 250 DC
Configuration: Single
Test Date: 22-Sep-2026
Cobia® - Cobia 250 DC

Performance Bulletin

58 - Cobia 250 DC

Cobia 250 DC

Length 24' 6"
Beam 9' 5"
Dry Weight (Boat Mfr. Pub) 6,700 lbs
Maximum HP 350 hp
Fuel Capacity 135 gal
Weight as Tested 8,124 lbs

F300USB2

Horsepower 300 hp
Induction EFI/VCT/DOHC
Displacement 4.2L
Weight (Estimated) 624 lbs
Gear Ratio 1.75:1

Engine Mounting Height

Mounting Hole Position #2

Propeller(s)

Series Saltwater Series II
Diameter x Pitch 15-1/2 x 16
Yamaha Part # 6CE-45938-20-00
Propeller Material Stainless Steel

Test Conditions

Number of People 2
Air / Water Temperature (Fahrenheit) 85° F / 85° F
Elevation (in feet above sea level) 0'
Wind Velocity 5-10 MPH

Comments

Test weight includes 110 gallons of fuel, 2 batteries, safety and test equipment.

YPB#: PB_COB_250 DC_F300USB2_9-22-26_ODC

Cobia® - Cobia 250 DC

Performance Bulletin


Engine: Yamaha F300USB2
Boat: Cobia 250 DC
Configuration: Single
Test Date: 22-Sep-2026
F300USB2

Performance Data

RPM
MPH
GPH
MPG
1000 4.6 1.3 3.54
1500 6.5 2.0 3.25
2000 8.7 3.6 2.45
2500 10.5 5.0 2.10
3000 13.2 6.7 1.97
3500 15.8 8.8 1.80
4000 26.6 11.6 2.29
4500 31.9 14.8 2.15
5000 36.9 19.2 1.92
5500 41.4 25.3 1.64
6000 45.0 26.2 1.72

0-20 MPH: 5.98 seconds

Notice To Consumer The information and data contained in this Performance Bulletin is approximate and subject to many different factors and variables. It is provided as a guideline only and should not be relied upon as representative of actual performance. Your boat’s performance may be different than the information contained in this Performance Bulletin due to various factors, including your boat’s actual weight, wind and water conditions, temperature, humidity, elevation, bottom paint, boat options affecting wind/water drag and/or boat weight, and operator ability. Please confirm the specifications and performance data on your specific boat/engine combination with your dealer prior to purchase. Please also keep in mind that the data contained in this Performance Bulletin may or may not have been performed using Yamaha PowerMatched components. Yamaha reserves the right to change the specifications and performance data of this Performance Bulletin or engine without notice. This document contains many of Yamaha’s valuable trademarks. It may also contain trademarks belonging to other companies. Any references to other companies or their products are for identification purposes only, and are not intended to be an endorsement.