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V6 4.2 Liter
Yamaha’s award-winning V6 4.2-liter outboards have been offshore favorites for more than a decade. Initially, boaters were attracted to their power, efficiency and intelligent design. After years of proven performance, our V6 4.2-liters have become known for something perhaps even more valuable offshore—reliability. In fact, with legendary 96 percent reliability,** they’re one of the most trusted V6’s offshore. Well, now these trusty outboards are turning heads again, with a fresh new look and new, integrated digital electric steering—making them even more responsive. Our V6 Offshore outboards have proven once again that even a trusted favorite can take an exciting turn.
Owner's Manuals
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Legendary 96% Reliability**
Miles offshore, there’s nothing more important than your outboard’s reliability. Over years of proven performance, Yamaha’s offshore 4.2L V6 has recorded 96 percent reliability.** This outstanding track record makes it an even smarter choice offshore.
POWER & PERFORMANCE
4.2 Liter Big Bore Displacement
Yamaha’s 4.2-liter V6 Offshore outboards feature plasma-fused sleeveless cylinder walls, which are 60 percent harder than steel. That means larger cylinder bores for increased displacement, resulting in more power and torque, without increasing outer cylinder dimensions. It also results in dramatically lighter weight and better cooling, and “micro-textured” cylinder walls that help decrease friction loss, and further increase performance and enhance reliability.
Fuel Efficiency
For maximum power and efficiency, electronically controlled throttle valves work in concert with Precision Multi-Point Fuel Injection to ensure a precise mix of air and fuel. In addition, six individual sensors constantly provide vital atmospheric and engine conditions to the Engine Control Module (ECM), which makes adjustments for performance.
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Light Weight
From the top of the cowling to the tip of the propeller shaft, every ounce of weight-savings has been realized for maximum performance without sacrificing durability.
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Throttle Response & Acceleration
Yamaha’s Variable Camshaft Timing system advances and retards the angle of the intake camshaft to dramatically increase power and throttle response in the low- and mid-RPM ranges. This feature helps Yamaha’s new 4.2-liter big-bore V6 outboards deliver awesome hole shot and mid-range acceleration.
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Responsive Electric Steering
The Yamaha V6 Offshore F300 and F250 are the industry’s very first offshore V6’s offered in digital models with built-in electric steering. This makes them incredibly responsive and also results in a cleaner bilge, with no pumps, hoses, hydraulic lines or connections.
RELIABILITY & DURABILITY
RELIABILITY & DURABILITY
Long Range Fuel Economy
Convenience & Control
Charging Power
Our V6 4.2-liter outboards feature up to 70 amps of total alternator output—ample charging for an array of on-board electronic devices.Precise and Convenient Trolling
Speed Control with Pattern Shift automatically bumps engines into and out of gear to achieve sub-idle trolling speeds. Helm Master EX with Autopilot even allows you to set a target speed, as low as 0.25 mph. This cues the system to auto-adjust RPM and shifting to achieve that target speed—all while adjusting for conditions such as wind or current. This provides incredible control of trolling speed—from in-gear idling to slowing to a crawl.More Functionality / Security
Our digital V6 Offshore models are compatible with Helm Master® EX boat control system. Helm Master EX offers functionality including Autopilot with Heading/Course Hold, 10+ automated modes for fishing and relaxing, in-mode joystick adjustability, the expanded ability to control up to five outboards and more. There’s even an optional theft-deterrent system, Y-COP®, which disables the ignition and fuel systems while docked.Top Speed and Smooth Shifting
Our new Saltwater Series II™ HP Propeller can boost top-end speed up by nearly 2 mph in lighter-weight applications. It’s also equipped with our patented Shift Dampener System (SDS®) for smoother, quieter shifting.Fast, Easy Tilting
A new, Yamaha exclusive, TotalTilt™ performs a quick, full trim up or down with the fast, double-tap of a button. This makes trailering quick and easy and is handy when a complete up or down tilt is needed.
Powerful, Precise Maneuvering
Thrust Enhancing Reverse Exhaust keeps exhaust bubbles away from the propeller below 2500 RPM and when in reverse. This means the prop bites only clean water, which results in outstanding reverse thrust and control—especially when backing down on fish and when maneuvering around docks.
Product Videos
Yamaha 4.2L V6
V6 4.2L 300 hp
Our 4.2-liter F300 is a reliable, offshore favorite—and it's only getting better. It now features a fresh, new cowling design (with stern light if rigged with Helm Master® EX), new integrated digital electric steering*, rerouted exhaust for enhance reverse thrust and is available in Yamaha gray or pearlescent white. It’s destined to be a top choice offshore for years to come.
- Compatible with mechanical (25” shaft) or digital controls including new Helm Master® EX
- Recommended fuel: 89 Octane
- Shaft lengths available: 25”, 30” and 35” (30" and 35” on F300 DEC only)
- Alternator output: up to 70 amp
*Mechanical F225, F250, and F300 models remain unchanged and are available in gray only.
V6 4.2L 250 hp
Our 4.2-liter F250 is perfect for offshore dual or center consoles, walkarounds, runabouts and pontoons. It allows you to step up your horsepower and displacement without rerigging. Only now, it features a fresh, new cowling design (with stern light if rigged with Helm Master® EX), new integrated digital electric steering* and rerouted exhaust for enhanced reverse thrust. It just proves even the best can get even better.
- Compatible with mechanical (25" shaft) or digital controls, including new Helm Master® EX
- Recommended fuel: 87 Octane
- Shaft lengths available: 25”, 30”, and 35" (30" and 35" on F250 DEC only)
- Alternator output: Up to 70 amp
*Mechanical F225, F250, and F300 models remain unchanged and are available in gray only.
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V6 4.2L 225 hp
Perfect for 20-foot decks or deep-Vs, the versatile 4.2-liter F225 allows you to increase your displacement without replacing your rigging.
- Compatible with mechanical controls
- Recommended fuel: 87 Octane
- Shaft length: 25”
- Alternator output: 50 amp
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| Engine Type | V6 |
|---|---|
| Displacement | 4.2L |
| Bore x Stroke | 96 x 96mm (3.78 x 3.78 in) |
| Prop Shaft Horsepower | 300hp at 5500 rpm |
| Full Throttle RPM Range | 5000 ~ 6000 rpm |
| Alternator Output at W.O.T. | 50 - 70 Amp |
| Compression Ratio | 10.3:1 |
| Fuel Induction System | EFI |
| Weight † | 250 kg (551 lbs) / 254 kg (562 lbs) / 265 kg (588 lbs) |
| Recommended Fuel | Octane 89 |
| Recommended Engine Oil | Yamalube® 4M (See owner's manual) |
| Recommended Fuel Filtration | Yamaha 10-Micron Fuel / Water Separating Filter (external) |
| C.A.R.B. Rating | 3-Star |
| Exhaust | Through Propeller |
| Intake | 24 |
| Ignition | TCI Microcomputer |
| Spark Plug | LFR6A-11 |
| Starting System | Electric |
| Lubrication | Wet Sump |
| Engine Oil Capacity | 6.3L/6.0L |
| Recommended Cooling | Thermostatic Control |
| Ethanol Blend Limit | 10% Maximum |
| Gear Ratio | 1.75:1 |
| Gear Shift | Forward, Neutral, Reverse |
| Shaft Length | 25" - 30" - 35" (F300 DEC Only) |
| Degree of Tilt | Mechanical 67°, Digital Electric Steering 69°, Bolt-on steering 70° |
| Degree of Trim | -3° through +16° |
| Mounting Centers | 28.5" |
| Steering | Integrated, Electric Actuation |
| Steering Angle (maximum) | 32° from center, either direction |
| Warranty | Limited 3-Year Pleasure, 3-Year Government, 1-Year Commercial |
† Weight refers to shortest shaft length, and is measured without motor oil, gearcase oil and propeller (except models 25 hp and under, which include a standard propeller). All Jet model weights include the jet pump assembly (weight estimated).
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| Engine Type | V6 |
|---|---|
| Displacement | 4.2L |
| Bore x Stroke | 96 x 96mm (3.78 x 3.78in) |
| Prop Shaft Horsepower | 250hp at 5500 rpm |
| Full Throttle RPM Range | 5000 ~ 6000 rpm |
| Alternator Output at W.O.T. | 50 - 70 Amp |
| Compression Ratio | 10.3:1 |
| Fuel Induction System | EFI |
| Weight † | 250 kg (551 lbs) / 254 kg (562 lbs) / 265 kg (588 lbs) |
| Recommended Fuel | Octane 87 |
| Recommended Engine Oil | Yamalube® 4M (See owner's manual) |
| Recommended Fuel Filtration | Yamaha 10-Micron Fuel / Water Separating Filter (external) |
| C.A.R.B. Rating | |
| Exhaust | Through Propeller |
| Intake | 24 |
| Ignition | TCI Microcomputer |
| Spark Plug | LFR6A-11 |
| Starting System | Electric |
| Lubrication | Wet Sump |
| Engine Oil Capacity | 6.3L/6.0L w/with filter |
| Recommended Cooling | Thermostatic Control |
| Ethanol Blend Limit | 10% Maximum |
| Gear Ratio | 1.75:1 |
| Gear Shift | Forward, Neutral, Reverse |
| Shaft Length | 25" - 30" - 35" (F250 DEC Only) |
| Degree of Tilt | DES: 69°, Mechanical 70° |
| Degree of Trim | -3° through +16° |
| Mounting Centers | 28.5" |
| Steering | Integrated, Electric Actuation |
| Steering Angle (maximum) | 32° from center, either direction |
| Warranty | Limited 3-Year Pleasure, 3-Year Government, 1-Year Commercial |
† Weight refers to shortest shaft length, and is measured without motor oil, gearcase oil and propeller (except models 25 hp and under, which include a standard propeller). All Jet model weights include the jet pump assembly (weight estimated).
| Engine Type | V6 |
|---|---|
| Displacement | 4.2L |
| Bore x Stroke | 96 x 96mm (3.78 x 3.78 in) |
| Prop Shaft Horsepower | 225hp at 5500 rpm |
| Full Throttle RPM Range | 5000 ~ 6000 rpm |
| Alternator Output at W.O.T. | 50 - 70 Amp |
| Compression Ratio | 10.3:1 |
| Fuel Induction System | EFI |
| Weight † | 250 kg (551 lbs) - 254 kg (562 lbs) |
| Recommended Fuel | Octane 87 |
| Recommended Engine Oil | Yamalube® 4M (See owner's manual) |
| Recommended Fuel Filtration | Yamaha 10-Micron Fuel/Water Separating Filter (external) |
| C.A.R.B. Rating | 3-Star |
| Exhaust | Through Propeller |
| Intake | 24 |
| Ignition | TCI Microcomputer |
| Spark Plug | LFR6A-11 |
| Starting System | Electric |
| Lubrication | Wet Sump |
| Engine Oil Capacity | 6.3/6.0L |
| Recommended Cooling | Thermostatic Control |
| Ethanol Blend Limit | 10% Maximum |
| Gear Ratio | 1.75:1 |
| Gear Shift | Forward, Neutral, Reverse |
| Shaft Length | 25" - 30" |
| Degree of Tilt | 67° |
| Degree of Trim | -3° through +16° |
| Mounting Centers | 28.5" |
| Steering | |
| Steering Angle (maximum) | 32° from center, either direction |
| Warranty | Limited 3-Year Pleasure, 3-Year Government, 1-Year Commercial |
† Weight refers to shortest shaft length, and is measured without motor oil, gearcase oil and propeller (except models 25 hp and under, which include a standard propeller). All Jet model weights include the jet pump assembly (weight estimated).
