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ECU B5D-H594A-10 — Yamaha FREEGO 125
ECU part number B5D-H594A-10 (code B5D1) for the Yamaha FREEGO 125 (FreeGo / FreeGo S) 2019–2026, 125 cc, OEM ECU. Pinout and full ECU data in the BikeStudio Partner app.

ECU data
- ECU part number
- B5D-H594A-10
- ECU code
- B5D1
- Motorcycle
- Yamaha FREEGO 125
- Other names
- FreeGo, FreeGo S
- Years
- 2019–2026
- Engine
- 125 cc
- Bore × stroke
- 52.4 x 57.9 mm
- Power
- 9.3 hp
- ECU maker
- OEM
- MCU type
- RL78
- Market
- Asia
Pinout and full data in the app
The ECU pinout picture, ECM ID, calibration and flash size for this ECU are in BikeStudio Partner — the free app for motorcycle workshops, which also works offline.
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Other ECUs for the Yamaha FREEGO 125
| ECU part number | Years | cc | Market |
| B5D-H594A-00 | 2019–2021 | 125 | Asia |
| B5D-H594A-10 | 2019–2026 | 125 | Asia |