Yamaha 450HP LXF450USA XTO Offshore Counter Rotation Outboard – 30″ Shaft
The 450-horsepower white Yamaha LXF450USA provides XTO Offshore counter-rotation propulsion with a 30-inch shaft. The shaft dimension supports compatible transom heights, while counter-rotation helps balance twin-engine thrust and improve handling during acceleration and maneuvering.
Description
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Yamaha 450HP LXF450USA XTO Offshore Counter Rotation Outboard Specs
| Brand | Yamaha Marine |
| Full Model Code / Part Number | LXF450USA (Counter Rotation / 30" Shaft) |
| Country of Origin | Japan / USA |
| Engine Type & Configuration | 4-Stroke Direct Injection V8 (60° V8, DOHC 32-Valve) |
| Horsepower Output (HP / kW) | 450 HP (331 kW) |
| Displacement (cc / cu in) | 5559 cc (339 cu in) |
| Bore x Stroke (mm / in) | 96.0 x 96.0 mm (3.78 x 3.78 in) |
| Maximum RPM Range (Full Throttle Operating Range) | 5000 - 5800 RPM |
| Fuel Induction System | Direct Fuel Injection (DI) |
| Ignition System | TCI Microcomputer |
| Starting System | Electric Start (Electronic Key Switch / Push Button) |
| Steering System | Integrated Electronic Steering System (DES) |
| Trim & Tilt System | Power Trim & Tilt with Integrated Tilt Limit |
| Gear Ratio & Shift Mechanism | 1.79:1 (Counter Rotation Forward - Neutral - Reverse) |
| Exhaust System | Through Prop Hub (Exhaust Relief Above Cavitation Plate for Reverse) |
| Recommended Transom Shaft Length | XXL: 30 inches |
| Alternator / Charging Output (Amps / Watts) | 90 Amp (Raw Water Cooled / Up to 72 Amps Net Dedicated Battery Charging) |
| Recommended Fuel Grade & Oil Type | Regular Unleaded (Min. 89 Octane Recommended) / Yamalube 4M FC-W 10W-30 |
| Dry Weight (kg / lbs) | 440 kg / 970 lbs |
| Standard Warranty | 3 Years Limited Pleasure Boat Warranty |
Common Question of Yamaha LXF450USA
Is LXF450USA counter rotating?
Yes. The Yamaha LXF450USA XTO Offshore is specified as a counter-rotation 450-horsepower outboard with a 30-inch shaft. Its counter rotating lower unit is intended for compatible paired-engine applications. Confirm propeller specification, engine pairing, XTO controls, steering, battery, wiring, and boat compatibility before installation.
What transom fits its shaft?
A 30-inch transom is the intended match for this LXF450USA model. Measure the hull before mounting because incorrect shaft length can affect cooling-water pickup, gearcase clearance, propeller immersion, steering response, and paired-engine balance. Correct measurement supports this ready to bolt marine installation.
What should buyers verify?
Verify the exact fuel system, propeller, controls, harnesses, gauges, battery, steering equipment, engine weight, transom strength, and package contents. The supplied title does not specify EFI, so confirm technical details through Yamaha documentation before installing this high performance outboard motor.














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