Yamaha 350HP LF350USA DEC Counter Rotation Outboard – 30″ Shaft
The 350-horsepower Yamaha LF350USA DEC provides counter-rotation outboard propulsion with a 30-inch shaft. Electronic digital controls support responsive operation, while counter-rotation helps balance twin-engine thrust and the shaft length supports compatible offshore transom heights.
Description
SET
Yamaha 350HP LF350USA DEC Counter Rotation Outboard Specs
| Brand | Yamaha Marine |
| Full Model Code / Part Number | LF350USA (Counter Rotation / 30" Shaft) |
| Country of Origin | Japan / USA |
| Engine Type & Configuration | 4-Stroke V8 (60° V8, DOHC 32-Valve) |
| Horsepower Output (HP / kW) | 350 HP (257 kW) |
| Displacement (cc / cu in) | 5330 cc (325 cu in) |
| Bore x Stroke (mm / in) | 94.0 x 96.0 mm (3.70 x 3.78 in) |
| Maximum RPM Range (Full Throttle Operating Range) | 5000 - 6000 RPM |
| Fuel Induction System | Electronic Fuel Injection (EFI) - Multi-Point Sequential |
| Ignition System | TCI Microcomputer |
| Starting System | Electric Start (Digital Electronic Control) |
| Steering System | Digital Electronic Control (DEC) / Compatible with Remote Steering |
| Trim & Tilt System | Power Trim & Tilt |
| Gear Ratio & Shift Mechanism | 1.73:1 (Counter Rotation Forward - Neutral - Reverse) |
| Exhaust System | Through Prop Hub |
| Recommended Transom Shaft Length | XXL: 30 inches |
| Alternator / Charging Output (Amps / Watts) | 50 Amp (Maximum) / 630 Watts |
| Recommended Fuel Grade & Oil Type | Regular Unleaded (Min. 89 Octane Recommended) / Yamalube 4M FC-W 10W-30 |
| Dry Weight (kg / lbs) | 363 kg / 800 lbs |
| Standard Warranty | 3 Years Limited Pleasure Boat Warranty |
Common Question of Yamaha LF350USA
Is LF350USA counter rotating?
Yes. The Yamaha LF350USA is specified as a DEC counter-rotation 350-horsepower outboard with a 30-inch shaft. Its counter rotating lower unit is intended for compatible paired-engine applications. Confirm propeller specification, engine pairing, DEC controls, steering, battery, wiring, and boat compatibility before installation.
What shaft length does it use?
The shaft length is 30 inches, intended for a matching tall transom. Measure the hull before purchase because incorrect shaft length can affect cooling-water pickup, gearcase depth, propeller immersion, steering response, and paired-engine balance. Proper measurement supports this ready to bolt marine package.
Does it use fuel injection?
Confirm the exact Yamaha fuel system before making an EFI claim. The supplied title identifies DEC 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 of this high performance outboard motor.
Reviews
There are no reviews yet.