High HP Four Stroke F350

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The new 350 joins the Yamaha Offshore Outboard family, to deliver big horsepower, state-of-the art features, industry-leading boat control integration, premium level performance and reliability – filling an important segment in Yamaha’s high-horsepower line-up.

Incorporating an upgraded 4.3L engine block and extra-strong gear case, this outboard delivers 350 horsepower in an industry-leading lightweight package, making it more suitable to a wider range of offshore boating applications, than ever before.

The new 350 comes with many of the innovative features developed in Yamaha’s XTO 425 and 450 horsepower models, including built-in digital electric steering for premium, feature-rich control, TotalTilt™ integrated tilt limiter for easier operation, thrust enhancing reverse exhaust for improved responsiveness, plus full compatibility with Yamaha’s exclusive Helm Master EX boat control system, across single and multiple outboard applications.

Combining all these awesome features with the choice of traditional Signature Grey or Pearlescent White colour options, this outboard will prove to be extremely popular in the offshore fishing scene.

Helm Master® EX Control System

Helm Master® EX is an industry-first fully integrated digital boat control system that delivers next level control over your boat for increased boating and fishing enjoyment. Now available for single and multiple outboard engine applications, with Autopilot, Joystick and Bow Thruster integration options.

4256cc V6 Engine

This proven big block V-type 6-cylinder has an expanded piston stroke and a displacement of 4.3L, delivering more torque throughout all RPM ranges. Featuring plasma-fused, sleeveless cylinders, double overhead camshafts (DOHC) and four valves per cylinder, this engine is lightweight, powerful and fuel efficient.

Built-In Digital Electric Steering (DES)

Yamaha's built-in Digital Electric Steering (DES) is neat and compact, and delivers smoother, faster, and more precise steering - with additional technical capabilities. Removes the need for steering pumps, hoses, hydraulic lines and bleeding procedures - for less clutter in the bilge area.

Thrust Enhancing Reverse Exhaust

Redirects exhaust bubbles away from the prop when operating in reverse and under 2500rpm, resulting in cleaner water for greater prop grip and significantly improved thrust. This is handy for navigating around marinas and docks, reversing onto your catch and when combined with the Helm Master EX joystick boating control system.

New Shape and Cowling

Inspired by Yamaha's V8 XTO 450, the strong lines and aggressive styling reflects the awesome power and performance, while maintaining Yamaha's sleek, compact and premium look. The one-piece top cowling with water-draining air duct moulding, includes a new bottom cowling and raised chrome graphics.

Enhanced Lower Unit

To handle the enormous power generated by this outboard, the gear case utilises a freshly designed dog clutch, with more teeth, improving torque transfer from the power head to the propeller. These new design features further enhance the lower units legendary reliability and durability, further increasing operator confidence.

Increased Charging Power

The enhanced heat management system keeps everything nice and cool under the cowling. This not only improves engine durability and reliability but creates more available amps, when it is needed most, at idle – powering the increasing array of electrical devices used in today’s modern boats.

Two Colour Options

With the choice of Signature Yamaha grey or pearlescent white, you can select the colour that best matches your boat. Combined with premium raised chrome graphics, this engine will compliment even the most premium finished boats.

Fully Integrated Power System

The 350 is fully compatible with Yamaha's cutting-edge Helm Master EX boat control system, for a truly effortless boating experience. The full system combines Yamaha's ‘drive-by-wire’ Digital Electronic Control (DEC), Built-in Digital Electric Steering (DES), premium CL5 multifunction display, feature-packed autopilot, full manoeuvrability joystick and variable speed bow thruster.

New TotalTilt™ Function

Yamaha’s exclusive TotalTilt™ function allows for the complete tilt up or down of the outboard from any position with a simple double push of the Up or Down trim/tilt buttons. The new bracket allows the engine to tilt higher out of the water, helping to lessen the potential for corrosion, while the built-in tilt limiter automatically stops the engine tilt at a predetermined set point.

Helm Master EX Activity Warning Light (Optional)

This warning light feature is optional accessory when installed with the full Helm Master EX boat control system. The light mounts directly to the outboard rather than the transom, for an integrated look and finish. The warning light indicates the boat is actively in one of the Helm Master EX SetPoint™ modes.

Optional Dual Flush System

Flushing your outboard has never been easier thanks to the introduction of the optional dual flush system. The engine flush hose can now be routed through a new rigging grommet inside the rigging tube, allowing you to flush the engine from within the boat and multiple engines at once.

Plasma Fused Cylinders

The plasma fusion process creates a cylinder wall surface that is 60% harder than steel, removing the need for conventional steel cylinder sleeves. The removal of these sleeves significantly reduces weight while increasing capacity in the engine, resulting in an improved power-to-weight performance.

Larger Electronic Throttle Valve and Intake Manifold

The 350 has the same 81mm electronic throttle valve as the XTO 450, and is designed for smooth air flow and responsive power, while the larger intake and exhaust valves and Variable Camshaft Timing (VCT) deliver an improved air flow advantage.

Enhanced Heat Management System

A rotating cooling fan has been incorporated into the flywheel to combat the potential build-up of residual heat inside the cowling. This cooling system is very effective in drawing heat out of the flywheel area even at low engine speeds, for improved durability and reliability.

Yamaha Outboard Tech

Yamaha offers a range of rigging options to suit every boat. Check out the full suite of controls, gauges, switches, props and other technologies, plus outboard performance data.

TECHNICAL SPECIFICATIONS

Engine

Engine Type	24 Valve DOHC with VCT Direct Action 60° - V6
Bore x Stroke (mm)	96 x 98
Fuel Tank Capacity (l)
Displacement (cc)	4256
Recommended Maximum RPM	5000-6000
Fuel Management	EFI
Ignition	TCI
Lubrication System	Wet-sump
Alternator Output	12V-74A with Rectifier Regulator
Gear Ratio	1.75 : 1 (Counter Rotating Prop Available)
Starter System	Electric
Operation Method	Digital Electronic Control (DEC) & Digital Electric Steering (DES)
Trim and Tilt Method	Power Trim & Tilt with TotalTilt™
Digital Gauges	Optional
Command Link Gauges	Optional

Dimensions

Transom Height (mm [inch])	X: 640 [25.2] \| U: 767 [30.2] \| X: 894 [35.2]
Dry Weight (kg)	X: 286 \| U: 291\| E: 296

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Chivers Marine
An iconic name in Boating in Western Australia, Chivers Marine has been selling quality marine products since 1958.
The business that Laurie Chivers established over 60 years ago is still family owned and operated with Luke Chivers at the helm.
If you are looking for specialist advice and exceptional value Chivers Marine offers only the best brands supported by the best aftersales service in the industry

Chivers Marine
An iconic name in Boating in Western Australia, Chivers Marine has been selling quality marine products since 1958.

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