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Performance Bulletin


Engine: Yamaha LF350XSA2 / F350XSA2
Boat: Regulator 31
Configuration: Twin
Test Date: 29-Aug-2024
Regulator® - Regulator 31

Performance Bulletin

78 - Regulator 31

Regulator 31

Length 31' 4"
Beam 10' 4"
Dry Weight (Boat Mfr. Pub) 9,400 lbs
Maximum HP 900 hp
Fuel Capacity 300 gal
Weight as Tested 12,158 lbs

LF350XSA2 / F350XSA2

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 #3
Ventilation Plate Height 4" Above Boat Bottom

Propeller(s)

Series Saltwater Series II
Diameter x Pitch 15 x 20
Yamaha Part # 6CF-45932-20-00 / 6CE-45932-20-00
Propeller Material Stainless Steel

Test Conditions

Number of People 2
Air / Water Temperature (Fahrenheit) 91° F / 87° F
Elevation (in feet above sea level) 0'
Wind Velocity 5-10 MPH

Comments

Test weight includes 145 gallons of fuel, 3 batteries, safety and test equipment.

YPB#: PB_REG_31_TW_LF350XSA2_08-29-2024_OCC

Regulator® - Regulator 31

Performance Bulletin


Engine: Yamaha LF350XSA2 / F350XSA2
Boat: Regulator 31
Configuration: Twin
Test Date: 29-Aug-2024
LF350XSA2 / F350XSA2

Performance Data

RPM
MPH
GPH
MPG
1000 6.4 2.6 2.49
1500 8.6 4.4 1.98
2000 10.0 7.4 1.34
2500 13.6 12.2 1.11
3000 17.6 15.5 1.13
3500 26.1 18.6 1.40
4000 35.2 25.3 1.39
4500 40.5 30.8 1.32
5000 45.7 39.8 1.15
5500 51.3 54.2 0.95
6100 56.6 62.8 0.90

0-20 MPH: 5.47 seconds<br /> 0-30 MPH: 9.27 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.