Yamaha MT-09
- ECU
- B7N-8591A-40
- ECU maker
- —
- Model years
- 2021-2023
- Stock firmware
- Included · 1.94 MB
What you can tune
63 calibration tables · 0 scalars · 1 patches & flags — all editable in the browser.
Getting started
Start from the included stock firmware, or upload your own BIN read.
Heat-mapped tables, editable 2D/3D graphs, cell math, AI auto-tune, and compare against other reads.
Download a standard modified BIN and flash it with your own hardware and software.
Calibration maps
| Map | Group | Tables |
|---|---|---|
| Cyl - # | Fuel | 6 |
| MAP vs TPS | Fuel | 1 |
| Lambda IAP ## | Fuel | 2 |
| Lambda TPS ## | Fuel | 2 |
| Lambda Full Load | Fuel | 1 |
| Gear # | Fuel | 7 |
| Ignition map## | Ignition | 8 |
| Map## | Throttle / ETV | 28 |
| Throttle Limiter | Throttle / ETV | 1 |
| Fan Control | Temperature | 1 |
| Rpm Limiter ## | Limiters | 3 |
| Speed Limiter | Limiters | 1 |
| Hw Version | Other · B7N-8591A-00 Rom Info | 1 |
| Sw Version | Other · B7N-8591A-00 Rom Info | 1 |
1 patch & flag (toggle features on/off)
MotoEditor edits the calibration and exports a standard BIN — reading and flashing the ECU is handled by your own flashing hardware and software.
Frequently asked
What can I tune on the Yamaha MT-09 2021-2023?
This verified definition exposes 63 calibration tables — including fuel, ignition, throttle, limiters, other · b7n-8591a-00 rom info and temperature maps — plus 0 adjustable scalars and 1 feature patches, all editable in your browser.
Do I need to remove or open the ECU?
No. MotoEditor edits the calibration and exports a standard BIN. Reading the stock file from the bike and writing it back is done with your own flashing hardware and software.
Which ECU does this Yamaha MT-09 definition cover?
The B7N-8591A-40. Every map address and scaling is verified against the stock firmware, so what you edit matches the real calibration.
Can I use my own stock file?
Yes. Start a project from your bike's stock BIN and your changes apply to it, or begin from the built-in reference — either way you export a standard BIN.
How much does access cost?
MotoEditor is a single subscription that unlocks the browser editor for this definition and every other bike in the library — no per-project or per-download fees.