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Performance Bulletin


Engine: Yamaha F350XSA2 / LF350XSA2
Boat: Key West 291FS
Configuration: Twin
Test Date: 7-Feb-2024
Key West - Key West 291FS

Performance Bulletin

16 - Key West 291FS

Key West 291FS

Length 29' 1"
Beam 9' 8"
Dry Weight (Boat Mfr. Pub) 6,100 lbs
Maximum HP 800 hp
Fuel Capacity 200 gal
Weight as Tested 8,408 lbs

F350XSA2 / LF350XSA2

Horsepower 350 hp
Induction EFI/VCT/DOHC
Displacement 4.3L
Weight (Estimated) 629 - 629 lbs
Gear Ratio 1.75:1

Engine Mounting Height

Mounting Hole Position #2
Ventilation Plate Height 1" Above Boat Bottom

Propeller(s)

Series Saltwater Series II
Diameter x Pitch 15 x 21
Yamaha Part # 6CE-45972-20-00 / 6CF-45972-20-00
Propeller Material Stainless Steel

Test Conditions

Number of People 2
Air / Water Temperature (Fahrenheit) 56° F / 52° F
Elevation (in feet above sea level) 0'
Wind Velocity 15-20 MPH

Comments

Test weight includes 75 gallons of fuel, 3 batteries, safety and test equipment.

YPB#: PB_KWB_291FS_TW_F350XSA2_2-7-2024_OCC

Key West - Key West 291FS

Performance Bulletin


Engine: Yamaha F350XSA2 / LF350XSA2
Boat: Key West 291FS
Configuration: Twin
Test Date: 7-Feb-2024
F350XSA2 / LF350XSA2

Performance Data

RPM
MPH
GPH
MPG
1000 6.0 2.5 2.38
1500 8.5 4.6 2.87
2000 11.8 7.3 1.62
2500 21.0 10.2 2.07
3000 29.4 13.9 2.12
3500 35.6 17.0 2.09
4000 41.2 23.3 1.77
4500 46.4 27.5 1.69
5000 51.9 36.8 1.41
5500 58.0 47.8 1.21
6100 63.4 64.0 0.99

Time to Plane: 3.56 seconds<br /> 0-30 MPH: 4.90 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.