Yamaha F30 F40 JET40/30 750cc ECU Reflash License

Outboard EFI Performance Tune

1 ECU Reflash License for Yamaha F30, F40 and JET40/30 EFI 750cc 4-Stroke Outboard Engines

Maximize the power of your mid-sized Yamaha 750cc EFI outboard with this premium ECU reflash license from Outboard EFI. Only 1 tune is needed per engine. 

Combined with removing the intake restrictor on certain models, this flash delivers 47 horsepower across the F30, F40, and JET40/30 lineup. The 30 and 40 models achieve 47 HP, with strong gains on JET models at the powerhead that provide very noticeable real-world performance improvements.

Optimized Engine Tuning:

• Fuel and ignition curves refined for 89 octane (95 EU outside North America) or better fuel

• Torque limiters raised to safe, effective levels for strong low- and mid-range torque

• Electronic throttle bodies controlled to allow 100% airflow for crisp, immediate response

Manufacturers frequently use the same robust base engine across horsepower variants and detune lower models. Our advanced programming unlocks the engine’s true maximum HP potential and slightly beyond while maintaining reliability and efficiency.

Key Performance Benefits:

• Significant 47 HP output for better acceleration and hole shot

• Enhanced throttle response and overall power delivery

• Noticeable gains on JET40/30 models, especially at the powerhead

• Improved usability for a wide range of mid-size boating applications

Professional Tuning Services: We offer straightforward mail-in ECU reflash service—purchase this license and send your ECU for expert tuning with fast turnaround. Local in-shop tuning options are available for added convenience.

Warranty Information: Our tunes are designed for safe, dependable performance. Customers often retain factory warranty coverage for external mechanical and corrosion issues (confirm with your Yamaha dealer). Full support provided.

Why This 750cc Tune Performs:

• Specifically calibrated for Yamaha F30, F40, and JET40/30 750cc EFI engines

• Optional intake restrictor removal on applicable models for peak results

• Ideal upgrade for anglers, families, and performance-oriented boaters

Important Notes:

• Compatible with Yamaha F30, F40, and JET40/30 750cc 4-stroke models

• Intake restrictor removal recommended on certain models for full 47 HP gains

• Use recommended 89 octane fuel and adhere to Yamaha maintenance schedules

Unlock hidden power in your Yamaha 750cc outboard and enjoy a more responsive, capable engine. Order your ECU reflash license today!