Yamaha 300HP LF300XA Counter Rotation Outboard – 25″ Shaft
With 300 horsepower, counter-rotation operation, and a 25-inch shaft, the Yamaha LF300XA supports compatible twin-engine installations. Counter-rotation helps balance propulsion forces, while the shaft length promotes proper propeller alignment and effective thrust delivery.
Description
SET
Yamaha 300HP LF300XA Counter Rotation Outboard Specs
| Brand | Yamaha Marine |
| Full Model Code / Part Number | LF300XA (Counter Rotation / Mechanical / 25" Shaft) |
| Country of Origin | Japan / USA |
| Engine Type & Configuration | 4-Stroke V6 (DOHC 24-Valve with VCT) |
| Horsepower Output (HP / kW) | 300 HP (221 kW) |
| Displacement (cc / cu in) | 4169 cc (254 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 - 6000 RPM |
| Fuel Induction System | Electronic Fuel Injection (EFI) - V6 VST |
| Ignition System | TCI Microcomputer |
| Starting System | Electric Start |
| Steering System | Remote Steering / Mechanical Cable Compatible |
| Trim & Tilt System | Power Trim & Tilt |
| Gear Ratio & Shift Mechanism | 1.75:1 (Counter Rotation Forward - Neutral - Reverse) |
| Exhaust System | Through Prop Hub |
| Recommended Transom Shaft Length | XL: 25 inches |
| Alternator / Charging Output (Amps / Watts) | 70 Amp (Maximum) / 840 Watts |
| Recommended Fuel Grade & Oil Type | Regular Unleaded (Min. 89 Octane Recommended) / Yamalube 4M FC-W 10W-30 |
| Dry Weight (kg / lbs) | 253 kg / 558 lbs |
| Standard Warranty | 3 Years Limited Pleasure Boat Warranty |
Common Question of Yamaha LF300XA
Is LF300XA counter rotating?
Yes. The Yamaha LF300XA is identified as a counter-rotation 300-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 equipment, battery, wiring, and boat compatibility before installation.
What transom fits its shaft?
A 25-inch transom is the intended match for this LF300XA model. Measure the boat before purchase because incorrect shaft length can affect cooling-water pickup, gearcase depth, propeller immersion, steering response, and twin-engine balance. Proper measurement supports this ready to bolt marine outboard package.
Does it use fuel injection?
Confirm the exact Yamaha fuel system before making an EFI claim. The supplied title identifies 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 installing this high performance outboard motor.











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