450 HP
The XTO Offshore® 450 packs everything boaters love about the original XTO outboard—the durability, power and reliability—plus extra horses. With impressive stats such as 12.3:1 compression ratio for outstanding fuel economy and power and industry-first features such as an integrated electric steering system and Phase Angle Control Charging, it’s purpose-built for the extremes of going offshore.
- Award-winning Phase Angle Control Charging System
- Available in signature Yamaha gray or new pearlescent white
- 450 hp on less-expensive 89-octane gasoline
- Impressive 5-year Limited Warranty, for pleasure use
450 HP
| Weight † | 437 kg (963 lbs) / 448 kg (988 lbs) / 458 kg (1010 lbs) |
|---|---|
| Full Throttle RPM Range | 5000 – 6000 RPM |
| Fuel Induction System | Direct Injection / Up to 2900 PSI |
| Recommended Engine Oil | Yamalube® 4M (See owner’s manual) |
| Engine Type | V8 / DOHC / 32 valves / 4 Valves per Cylinder |
| Displacement | 5.6L |
| Bore x Stroke | 96 x 96 mm (3.78 x 3.78 in) |
| Prop Shaft Horsepower | 450hp at 6000 RPM |
| Alternator Output at W.O.T. | 102 Amp Gross, Max (up to 96 NET at idle) |
| Compression Ratio | 12.3:1 |
| Recommended Fuel | Octane 89 |
| Recommended Fuel Filtration | Yamaha 10-Micron Fuel / Water Separating Filter (external) |
| C.A.R.B. Rating | 3-Star |
| Exhaust | Through Propeller (Except in Reverse Under 2500 RPM) |
| Intake | 32-valve |
| Ignition | TCI Microcomputer |
| Spark Plug | ILMAR7E-9 / Iridium |
| Starting System | Electric w/ PTT |
| Lubrication | Wet Sump |
| Engine Oil Capacity | 7.8L / 8.2 Quarts | 7.5L / 7.9 Quarts |
| Recommended Cooling | Thermostatic Control |
| Ethanol Blend Limit | 10% Maximum |
| Gear Ratio | (25/14) 1.79 |
| Gear Shift | Forward, Neutral, Reverse |
| Shaft Length | 25″ – 30″ – 35″ |
| Degree of Tilt | -4° through +73° |
| Degree of Trim | -4° through +16° |
| Mounting Centers | 28.5″ |
| Steering | Integrated, Electric Actuation |
| Steering Angle (maximum) | 31° from center, either direction |
| Warranty | Limited 5-Year Pleasure, 3-Year Government, 1-Year Commercial |
† Weight refers to shortest shaft length, and is measured without motor oil, gearcase oil and propeller (except models 25 hp and under, which include a standard propeller). All Jet model weights include the jet pump assembly (weight estimated).
450 HP
| Boat Model: Engine: Bulletin: |
Bennington 30QXSBWAX2 XF450XSA2 / LXF450XSA2 View |
|---|---|
| Boat Model: Engine: Bulletin: |
Regal LX36 LXF450XSA / XF450XSA View |
| Boat Model: Engine: Bulletin: |
Sea Fox 368 Commander XF450USA2 / LXF450USA2 View |
| Boat Model: Engine: Bulletin: |
Sportsman Open 322 XF450XSA2 / LXF450XSA View |
| Boat Model: Engine: Bulletin: |
World Cat 400 CC XF450XSA2 / LXF450XSA2 View |
| Boat Model: Engine: Bulletin: |
Jeanneau Leader 10.5 CC XF450USA2 / LXF450USA2 View |
| Boat Model: Engine: Bulletin: |
Jeanneau DB/37 XF450USA2 / LXF450USA2 View |
425 HP
| Weight † | 432 kg (952 lbs) / 443 kg (977 lbs) / 453 kg (999 lbs) |
|---|---|
| Full Throttle RPM Range | 5000 – 6000 RPM |
| Fuel Induction System | Direct Injection / Up to 2900 PSI |
| Recommended Engine Oil | Yamalube® 4M (See owner’s manual) |
| Engine Type | V8 / DOHC / 32 valves / 4 Valves per Cylinder |
| Displacement | 5.6L |
| Bore x Stroke | 96 x 96 mm (3.78 x 3.78 in) |
| Prop Shaft Horsepower | 425hp at 5500 RPM |
| Alternator Output at W.O.T. | 100 Amp Gross, Max |
| Compression Ratio | 12.2:1 |
| Recommended Fuel | Octane 89 |
| Recommended Fuel Filtration | Yamaha 10-Micron Fuel / Water Separating Filter (external) |
| C.A.R.B. Rating | 3-Star |
| Exhaust | Through Propeller (Except in Reverse Under 2500 RPM) |
| Intake | 32 |
| Ignition | TCI Microcomputer |
| Spark Plug | ILMAR7E-9 / Iridium |
| Starting System | Electric w/ PTT |
| Lubrication | Wet Sump |
| Engine Oil Capacity | 7.8L / 8.2 Quarts | 7.5L / 7.9 Quarts |
| Recommended Cooling | Thermostatic Control |
| Ethanol Blend Limit | 10% Maximum |
| Gear Ratio | (25/14) 1.79 |
| Gear Shift | Forward, Neutral, Reverse |
| Shaft Length | 25″ – 30″ – 35″ |
| Degree of Tilt | -4° through +73° |
| Degree of Trim | -4° through +16° |
| Mounting Centers | 28.5″ |
| Steering | Integrated, Electric Actuation |
| Steering Angle (maximum) | 31° from center, either direction |
| Warranty | Limited 5-Year Pleasure, 3-Year Government, 1-Year Commercial |
