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Yamaha F300UCB2 300HP – V6 FourStroke Digital Control 30-Inch
Yamaha F300UCB2 300HP broad 4.2L V6 block setups combine variable camshaft timing with digital drive-by-wire shift technology, accelerating massive commercial workboats smoothly under demanding enterprise payload configurations.
- 30-inch shaft fits deep transom hulls
- Integrated DES steering eliminates hydraulic lag
- Multi-point electronic injection cuts fleet fuel
- 6.3L large sump capacity supports extended runs
- 571-pound build ensures optimized weight profiles
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Description
Yamaha F300UCB2 V6 FourStroke 30-Inch Outboard Motor
Built explicitly for 30-inch cruiser layouts, the Yamaha F300UCB2 integrates a high-capacity 4169 cc V6 60° DOHC 24-Valve engine architecture with Variable Camshaft Timing (VCT) engineered to sustain premium offshore hull layouts while establishing an ideal baseline for a high output marine outboard platform. The ultra-long 30-inch shaft ensures deep hydrodynamic leverage and maximum transom stability during high-swell ocean transits. Delivering a commanding 300hp output at a peak 5500 RPM, this system maintains absolute structural velocity across a demanding 5000 to 6000 full-throttle RPM range.
Auxiliary generator overhead is slashed across your vessel because the heavy-duty high-output alternator loop safely generates a substantial 50 to 70 Amp matrix to run smoothly alongside a low amp boat accessory grid. Navigation tracking precision is enhanced via Integrated Digital Electric Steering (DES) combined with a responsive Digital Electronic Control (DEC) drive-by-wire digital shift throttle system management network. The rugged 571 lbs assembly encapsulates a massive 6.3-liter wet sump oil reservoir operating at an efficient 1.75:1 gear ratio to achieve premium mechanical durability.
Key Features of Yamaha F300UCB2:
- Advanced four thousand one hundred sixty nine cc twenty four valve DOHC V6
- Massive three hundred horsepower output at peak fifty five hundred operating RPM
- Deep water tracking leverage with thirty inch ultra long shaft length
- Integrated digital electric steering pump eliminating external mechanical clutter from transoms
- Digital electronic controls providing smooth drive by wire helm gear shifting
- Variable Camshaft Timing scaling structural acceleration and low end hole shot torque
- Dual isolated high output stator loop delivering up to seventy charging amps
- Large six point three liter wet sump internal engine lubrication reservoir
- Integrated power trim and tilt mechanisms stabilizing planning vectors smoothly over swells
- Comprehensive factory coverage policy protecting internal drivetrain networks across certified centers
Fluid Dynamic Fluid Flow Assessment
Stratified low RPM combustion modes deliver immediate thermal optimization inside the water-cooled 60 degree V6 engine block. This design achieves maximum heat dissipation efficiency via specialized thermostatic control while lowering emissions indicators across changing water temperatures to pass strict C.A.R.B. 3-Star ratings. Marine structural integrity is maintained via multi-point targeted oiling configurations, preventing cylinder overhead variations during heavy continuous offshore acceleration patterns while safeguarding your integrated saltwater corrosion resistant motor casing.
Extended 24-Month Factory Coverage
A two year factory limited warranty secures all internal mechanical and electrical engineering elements against structural saltwater corrosion failures. This comprehensive corporate backing guarantees full service coverage across certified regional dealer networks. Vessel operators receive multi-season component protection, verifying reliable engine lifespan and eliminating unexpected operational repair overhead during high-hour coastal transit operations.
Engineered Hull Layout Matching
Vessels measuring 24 to 32 feet in length provide the perfect hull geometry fitment for single or multiple ultra-long shaft configurations. The compact integrated midsection mounts directly onto standard 26-inch centers without requiring custom dual-axis rigging alterations or structural reinforcements. This specialized alignment maximizes clean airflow around structural gunwales while preserving optimal weights distribution profiles across modern offshore center consoles, deep V sportfishers, and large luxury express cruisers.
Yamaha F300UCB2 300HP - V6 FourStroke Digital Control 30-Inch Specs
| Engine type | V6 60° DOHC 24-Valve w/ VCT |
| Displacement | 4169 cc |
| Bore x stroke | 96 x 96 mm (3.78 x 3.78 in) |
| Horsepower | 300hp @ 5500 RPM |
| Full-throttle rpm range | 5000 - 6000 RPM |
| Compression ratio | 10.3:1 |
| Fuel induction | EFI (Electronic Fuel Injection) |
| Recommended fuel | 89 Octane |
| Ignition | TCI Micro-Computer |
| Alternator output | 50 - 70 Amp |
| Gear ratio | 1.75:1 |
| Gear shift | Forward, Neutral, Reverse (DEC) |
| Shaft length | 30 inch |
| Dry weight | 571 lbs (259 kg) |
| Controls | Digital Electronic Control (DEC) |
| Steering | Integrated Digital Electric Steering (DES) |
| Trim and tilt | Power Trim and Tilt |
| Exhaust | Through Propeller |
| Cooling system | Water Cooled w/ Thermostatic Control |
| Lubrication | Wet Sump |
| Oil capacity | 6.3 Liters |
| Emissions rating | C.A.R.B. 3-Star |
What's in the Box
- 1x F300UCB2 300HP V6 Digital Outboard Motor
- 1x Factory-Integrated Standard Rotation Gearcase Unit
- 1x Digital Electronic Throttle Actuator Harness
- 1x High-Output Alternator Charging System Assembly
- 1x Multi-Pin Primary Rigging Digital Wire Harness
- 1x User Manual
- 1x Warranty Card
Yamaha F300UCB2 Outboard FAQ
What setup steers the Yamaha F300UCB2?
Integrated digital electric steering controls all remote helm inputs on the Yamaha F300UCB2. This sophisticated built-in DES architecture eliminates external hydraulic fluid steering hoses and pumps completely from your boat splashwell area. It guarantees immediate tracking response, automated trim coordination, and effortless wheel rotation when operating this high-horsepower V6 big-block offshore machine.
What is the weight of Yamaha F300UCB2?
The dry weight of the Yamaha F300UCB2 is exactly 571 lbs without propellers or fluid volumes. Naval architects updating offshore vessels must evaluate this 571-pound factory rating against maximum ultra-long thirty-inch transom load capacities. Combine this bare engine blueprint mass with the large six-point-three-liter wet sump capacity for precise drafting metrics.
Which engineering thresholds control this digital machine?
Running a 4169 cc big-block engine inside a 5000-6000 full throttle range, this outboard utilizes these technical baselines:
| Mechanical Core | Certified Engineering Blueprint Specs |
|---|---|
| Cylinder Geometry | V6 60° DOHC 24-Valve with Variable Camshaft Timing peaking at 300hp @ 5500 RPM running on 89 Octane |
| Gearbox Reduction | 1.75:1 high-torque lower unit gear ratio matching aggressive propeller designs under heavy boat loads |
| Command Network | Digital Electronic Control remote drive-by-wire shifter system removing mechanical throttle cable friction and response lag curves |
| Transom Bracket | Ultra-long 30-inch shaft drive leg layout backed by a 50-70 Amp high-output alternator charging loop system |
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