Yamaha BFN-8591A-02-00 - Engine Control Unit is a genuine Yamaha part. It is an electronic control unit that manages system functions using input from sensors. Confirm part number BFN-8591A-02-00 against your Yamaha parts diagram before ordering.

---

Key Features & Benefits

• Connects to the factory wiring harness for its location.
• Processes sensor inputs and controls the system it manages.
• Replaces a failed or damaged control unit.
• Sold under Yamaha part number BFN-8591A-02-00.

---

Frequently Asked Questions

What is the Yamaha Engine Control Unit (BFN-8591A-02-00)?

The Engine Control Unit is a genuine Yamaha part sold under part number BFN-8591A-02-00. This control unit processes signals and controls the system it is part of.

What does the Engine Control Unit (BFN-8591A-02-00) control?

The Engine Control Unit manages the system it is wired into, using inputs from related sensors, as shown for part BFN-8591A-02-00 in the Yamaha parts diagram.

Should I diagnose before replacing the Engine Control Unit (BFN-8591A-02-00)?

Yes. Control unit symptoms can be caused by wiring, sensors, or power supply issues. Confirm the fault with testing before installing part BFN-8591A-02-00.

---

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.