Power your vessel with the Yamaha F350 350HP Outboard Motor, engineered to deliver outstanding offshore power, responsive performance, and an impressive power-to-weight ratio. Featuring a 4.3-liter V6 engine, an 11:1 compression ratio, and a published dry weight starting at approximately 629 pounds, the Yamaha F350 is designed for boat owners who need high horsepower in a lightweight engine package.
The Yamaha F350 is suited to compatible offshore fishing boats, center consoles, dual consoles, walkarounds, runabouts, and other vessels designed for 350HP outboard propulsion.
This outboard delivers 350 horsepower at 6,000 RPM and features electronic fuel injection, a full-throttle operating range of 5,000–6,000 RPM, and Yamaha’s modern V6 offshore engine design. Its 4.3-liter displacement supports high-output performance, while the 11:1 compression ratio is part of the engine’s performance-focused engineering.
The F350 is available with 25-inch, 30-inch, and 35-inch shaft configurations. Published dry weight varies by shaft configuration, starting at approximately 629 pounds for the shortest shaft model. Selecting the correct shaft is essential for compatibility with your boat’s transom and mounting requirements.
Color options include Yamaha Gray, Pearl White, and Classic White. Each finish has corresponding model codes, allowing buyers to select a suitable combination of appearance and shaft length for their vessel.
The engine features alternator output of up to 70 amps, providing charging capacity for the starting battery and compatible onboard electronics. Yamaha recommends 89-octane fuel for this model. Additional features include electric starting, power trim and tilt, integrated electric-actuation steering, and a 1.75:1 gear ratio.
The Yamaha F350 is compatible with Yamaha digital controls and a range of gauges and propellers. The appropriate controls, steering equipment, and rigging package depend on the selected model and vessel configuration. Confirm what is included before ordering.
Whether you’re repowering a compatible offshore boat or selecting an engine for a new build, the Yamaha F350 350HP offers high-output V6 performance with multiple shaft and finish options.
Product Specifications
Brand: Yamaha
Model Series: F350 V6 Offshore
Horsepower: 350 HP
Engine Type: 4-Stroke
Engine Configuration: V6
Displacement: 4.3L
Fuel System: Electronic Fuel Injection (EFI)
Rated Power: 350 HP at 6,000 RPM
Full-Throttle RPM Range: 5,000–6,000 RPM
Bore x Stroke: 96 x 98 mm (3.78 x 3.86 in)
Compression Ratio: 11.0:1
Shaft Length: 25″, 30″, or 35″
Dry Weight: Approximately 629 lbs, 642 lbs, or 653 lbs, depending on configuration
Alternator Output: 50–70 Amps
Recommended Fuel Octane: 89
Starting System: Electric Start
Trim System: Power Trim & Tilt
Steering: Integrated Electric Actuation
Gear Ratio: 1.75:1
Gear Shift: Forward, Neutral, Reverse
Exhaust: Through Propeller, with a reverse-operation exception below 2,500 RPM
Ignition: TCI Microcomputer
Lubrication: Wet Sump
Ethanol Blend Limit: 10% maximum, according to Yamaha specifications
Color Options: Yamaha Gray, Pearl White, Classic White
Controls: Digital Electronic Controls (DEC) on the listed models
Condition: New
Key Features
Yamaha F350 350HP outboard motor, 4.3-liter V6 four-stroke engine, 11:1 compression ratio, electronic fuel injection, 350 horsepower at 6,000 RPM, approximately 629-pound minimum dry weight, 25-inch shaft, 30-inch shaft, 35-inch shaft, alternator output up to 70 amps, 89-octane fuel recommendation, integrated electric-actuation steering, electric starting, power trim and tilt, 1.75:1 gear ratio, Yamaha Gray finish, Pearl White finish, Classic White finish, designed for compatible offshore fishing boats and recreational vessels.
Why Choose the Yamaha F350 350HP?
The Yamaha F350 350HP Outboard Motor is designed for boat owners who need substantial horsepower and a strong power-to-weight ratio for demanding marine use. Its 4.3-liter V6 engine delivers 350 horsepower while maintaining a published minimum dry weight of approximately 629 pounds.
The 11:1 compression ratio and electronic fuel injection are part of Yamaha’s performance-focused offshore platform. Together with the V6 design, these features support the engine’s role in high-horsepower offshore applications.
The F350 also provides flexibility through its 25-inch, 30-inch, and 35-inch shaft configurations. Yamaha Gray, Pearl White, and Classic White finishes offer additional choice when matching an engine to a vessel.
With electric starting, power trim and tilt, integrated electric-actuation steering, and alternator output up to 70 amps, the Yamaha F350 combines high-output propulsion with features suited to modern offshore installations.
4.3-Liter V6 Engine
The Yamaha F350 features a 4.3-liter V6 four-stroke engine engineered for high horsepower and offshore performance. It has a 96 x 98 mm bore and stroke, an 11:1 compression ratio, and an electronic fuel injection system.
The engine is rated at 350 horsepower at 6,000 RPM, with a full-throttle operating range of 5,000–6,000 RPM. Its engine design and fuel system support the F350’s position in Yamaha’s offshore outboard lineup.
Follow the applicable Yamaha owner’s manual for fuel, oil, maintenance, operating, and storage instructions.
Lightweight Power-to-Weight Design
Yamaha lists the F350 at approximately 629 pounds for the shortest shaft configuration, with weights of approximately 642 and 653 pounds for the longer shaft configurations.
This design provides a strong power-to-weight proposition in the 350HP outboard class. Actual engine weight depends on shaft length and configuration; published dry weights exclude specified fluids and the propeller.
Always account for the actual engine configuration when evaluating transom loading and the boat manufacturer’s weight limits.
25-Inch, 30-Inch, and 35-Inch Shaft Options
The Yamaha F350 is available with three shaft lengths for compatible boat configurations.
25-inch shaft: F350XSA, F350XSA2, F350XSA4
30-inch shaft: F350USA, F350USA2, F350USA4
35-inch shaft: F350ESA, F350ESA2, F350ESA4
The model code identifies the shaft length and finish. Confirm your vessel’s transom height and manufacturer’s recommendations before purchase to help ensure proper mounting and operation.
Integrated Electric Steering and Digital Controls
The Yamaha F350 features integrated electric-actuation steering and is compatible with Yamaha digital controls and compatible gauges. This arrangement is designed to support a modern helm and steering setup on suitable vessels.
The engine can also be configured with compatible Yamaha Helm Master EX equipment. Control boxes, steering components, gauges, wiring harnesses, propellers, and other rigging items should be confirmed separately unless explicitly stated as included in the sale.
The correct control and steering arrangement depends on the selected engine model and boat installation.
Alternator and Onboard Electronics
The Yamaha F350 has an alternator output range of 50–70 amps, up to 70 amps at wide-open throttle, according to Yamaha’s specifications.
This charging capacity can support the starting battery and compatible onboard electronics, including navigation displays, fish finders, radios, lighting, and other marine equipment. Actual charging output depends on engine speed, electrical loads, and the vessel’s electrical installation.
Check electrical requirements and installation compatibility before connecting accessories.
Recommended 89-Octane Fuel
Yamaha recommends 89-octane fuel for the F350 4.3L V6 Offshore engine.
Using the specified fuel grade and following Yamaha’s service schedule are important for proper engine operation. Consult the applicable owner’s manual for fuel requirements, approved fuel blends, oil specifications, maintenance intervals, and operating guidance.
Power Trim & Tilt
The Yamaha F350 includes power trim and tilt, allowing the operator to adjust engine position for different operating conditions, launching, and storage.
Proper trim adjustment can help the operator manage engine attitude and performance for the vessel and water conditions. Confirm compatibility between the selected engine and boat control system.
Available Colors
The Yamaha F350 is available in three finishes for the listed configurations.
Yamaha Gray: Available in 25-inch, 30-inch, and 35-inch shaft models.
Pearl White: Available in 25-inch, 30-inch, and 35-inch shaft models.
Classic White: Available in 25-inch, 30-inch, and 35-inch shaft models.
Each finish uses a different model-code suffix. Verify the desired color and shaft length on the order before purchase.
Ideal Applications
The Yamaha F350 may be suitable for compatible offshore fishing boats, center consoles, dual consoles, walkaround boats, runabouts, and other vessels engineered for 350HP outboard propulsion.
Always verify the boat manufacturer’s maximum horsepower rating, transom specifications, engine weight limits, steering arrangement, and control requirements before installing the engine.
For twin-engine installations, confirm whether a standard-rotation or counter-rotation engine is required. Yamaha lists counter-rotation versions separately under LF350 model codes with different MSRP figures.
Shipping & Availability
Contact Norman Outboards to confirm current stock, model code, shaft length, finish, rotation, control system, steering requirements, and shipping costs.
Worldwide shipping can be arranged where available. Freight, taxes, dealer preparation, rigging, steering equipment, accessories, and installation may incur additional charges.
The Yamaha F350 350HP 4.3L V6 Offshore Outboard combines high-output V6 performance, a lightweight design, integrated electric-actuation steering, and multiple shaft and finish configurations for compatible vessels.
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