Yamaha MT-09
- ECU
- B1J-8591A-20
- ECU maker
- —
- Model years
- 2018-2020
- Stock firmware
- Included · 1 MB
What you can tune
161 calibration tables · 1 scalars · 65 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 |
|---|---|---|
| Decel Fuel Cut | Fuel | 1 |
| Injector Timing | Fuel | 1 |
| IAP Cyl# | Fuel | 3 |
| TPS Cyl# | Fuel | 3 |
| IAP vs TPS Balance | Fuel | 1 |
| Accel Enrich. Neutral | Fuel | 1 |
| Accel Enrich. Gear1-2 | Fuel | 1 |
| Accel Enrich. Gear3-4-5-6 | Fuel | 1 |
| Neutral | Fuel | 1 |
| Gear# | Fuel | 6 |
| Ignition map by gear STD | Ignition | 1 |
| Ignition map by gear A | Ignition | 1 |
| Ignition map by gear B | Ignition | 1 |
| Ignition ## | Ignition | 10 |
| Igntion Cyl# Offset | Ignition | 2 |
| Gear vs RPM Mode # - IGN Control P | Ignition | 2 |
| Gear vs RPM Mode # - IGN Control I | Ignition | 2 |
| Gear vs RPM Mode # - IGN Control D | Ignition | 2 |
| RPM vs TPS - IGN Retard(deg) | Ignition | 2 |
| Gear - IGN RampIn Increment(deg) | Ignition | 2 |
| Gear - IGN RampOut Increment(deg) | Ignition | 2 |
| ETV Map## STD | Throttle / ETV | 14 |
| ETV Map ## A | Throttle / ETV | 14 |
| ETV Map ## B | Throttle / ETV | 14 |
| ETV Decel STD | Throttle / ETV | 1 |
| ETV Decel STD MS1 | Throttle / ETV | 1 |
| ETV Decel A | Throttle / ETV | 1 |
| ETV Decel A MS1 | Throttle / ETV | 1 |
| ETV Decel B | Throttle / ETV | 1 |
| ETV Decel B MS1 | Throttle / ETV | 1 |
| # Map Selector # | Throttle / ETV | 1 |
| Limiter mode STD | Throttle / ETV | 1 |
| Limiter mode A | Throttle / ETV | 1 |
| Limietr mode B | Throttle / ETV | 1 |
| N/m vs RPM - TPS | Throttle / ETV | 1 |
| TPS vs RPM - N/m Torque | Throttle / ETV | 1 |
| Gear vs RPM Mode # - ETV Control P | Throttle / ETV | 2 |
| Gear vs RPM Mode # - ETV Control I | Throttle / ETV | 2 |
| Gear vs RPM Mode # - ETV Control D | Throttle / ETV | 2 |
| RPM vs TPS - Hold Time (ms) | Throttle / ETV | 2 |
69 map groups in total — the full list is in the editor.
1 adjustable scalar (rev limits, thresholds, corrections)
| Info |
65 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 2018-2020?
This verified definition exposes 161 calibration tables — including fuel, ignition, throttle, limiters, gearbox, idle, other · * - tcs mode maps mode 1, other · * - tcs mode maps mode 2, other · * - tcs wheel speed corrections, other · compensation coil charge compensation, other · extra function bp, other · extra function lc, other · extra function pit, other · extra function qs, other · rom info and temperature maps — plus 1 adjustable scalars and 65 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 B1J-8591A-20. 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.