Yamaha 450HP LXF450XSA XTO Offshore Counter Rotation Outboard – 25″ Shaft
The 450-horsepower Yamaha LXF450XSA provides XTO Offshore counter-rotation operation with a 25-inch shaft. Counter-rotation supports balanced twin-engine setups, while the shaft length suits compatible transoms and helps deliver effective propulsion alignment during offshore operation.
Description
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Yamaha 450HP LXF450XSA XTO Offshore Counter Rotation Outboard Specs
| Brand | Yamaha Marine |
| Full Model Code / Part Number | LXF450XSA (Counter Rotation / 25" 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 | XL: 25 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) | 432 kg / 952 lbs |
| Standard Warranty | 3 Years Limited Pleasure Boat Warranty |
Common Question of Yamaha LXF450XSA
Is LXF450XSA counter rotating?
Yes. The Yamaha LXF450XSA XTO Offshore is specified as a counter-rotation 450-horsepower outboard with a 25-inch shaft. Its counter rotating lower unit is intended for compatible paired-engine applications. Confirm propeller specification, engine pairing, controls, steering, battery, wiring, and boat compatibility before installation.
What transom fits its shaft?
A 25-inch transom is the intended match for this LXF450XSA 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. Accurate measurement supports this ready to bolt marine installation.
Does it use fuel injection?
Confirm the exact Yamaha fuel system before making an EFI claim. The supplied title identifies XTO Offshore and counter rotation but does not explicitly state fuel injection. Verify controls, wiring, battery, steering equipment, fuel supply, gauges, propeller, engine weight, and package contents before installation.
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