Yamaha MT-09
- ECU
- BAM-8591A-XX
- ECU maker
- —
- Model years
- 2021-2023
- Stock firmware
- Upload your own
What you can tune
82 calibration tables · 0 scalars · 8 patches & flags — all editable in the browser.
Getting started
Upload your own BIN read of this ECU to start from.
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 |
|---|---|---|
| Fuel :: TPS - 50 | Fuel | 1 |
| Fuel :: RPM - 50 | Fuel | 2 |
| Fuel :: IAP - 50 | Fuel | 1 |
| Fuel :: IAP : Cyl # | Fuel | 3 |
| Fuel :: TPS : Cyl # | Fuel | 3 |
| Primary Injector % | Fuel | 1 |
| Secondary Injector % | Fuel | 1 |
| Delta :: TPS vs RPM : Gear 0 | Fuel | 1 |
| Delta :: TPS vs RPM : Gear 1,2 | Fuel | 1 |
| Delta :: TPS vs RPM : Gear 3,4,5,6 | Fuel | 1 |
| TPS-IAP Balance ## | Fuel | 2 |
| Lambda Full Load | Fuel | 1 |
| Lambda Active Map : Gear # | Fuel | 7 |
| Fuel Rev Limiter | Fuel | 1 |
| IGN :: TPS - 23 | Ignition | 1 |
| IGN :: Timing - 36 | Ignition | 1 |
| IGN :: Base Timing - 36 | Ignition | 1 |
| IGN :: Neutral : Cyl # | Ignition | 3 |
| IGN :: Neutral : Unknow | Ignition | 1 |
| IGN :: Gear #-# : Cyl # | Ignition | 3 |
| IGN :: Gear 1-6 : Unknow | Ignition | 1 |
| IGN :: Volt -> Dwell | High | Ignition | 1 |
| IGN :: Volt -> Dwell | Low | Ignition | 1 |
| QS : Timing Cut | Ignition | 1 |
| QS : Timing Cut Control | Ignition | 1 |
| QS : Timing Cut Period by Gear | Mode # | Ignition | 3 |
| Ign Rev Limiter | Ignition | 1 |
| TBW :: TPS - 30 | Throttle / ETV | 1 |
| TBW :: RPM - 30 | Throttle / ETV | 1 |
| ETV :: Power Mode # : Gear # | Throttle / ETV | 28 |
| Engine Idle vs ECT | Idle | 1 |
| Fan Temperature Control | Temperature | 1 |
| Top Speed Limiter | Limiters | 1 |
| Software Nr. | Other · General ECU Info | 1 |
| Software Upgrade Nr. | Other · General ECU Info | 1 |
| Hardware Nr. | Other · General ECU Info | 1 |
| YCCI Variable Stacks | Other · General ECU Settings | 1 |
8 patches & flags (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 82 calibration tables — including fuel, ignition, throttle, limiters, idle, other · general ecu info, other · general ecu settings and temperature maps — plus 0 adjustable scalars and 8 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 BAM-8591A-XX. 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.