How to Remove the Speed Limiter on an EFI Motorcycle?
2 Answers
With the ignition switch turned off, turn the throttle grip on the right hand to its maximum position and then pull the brake lever to its maximum position. With the left hand, turn on the ignition switch, then release the throttle grip and brake lever on the right hand. After turning the throttle grip on the right hand to its maximum position and pulling the brake lever to its maximum position, turn on the ignition switch with the left hand and then hold the left brake lever. Quickly turn the throttle grip on the right hand to its maximum position and release it twice. To remove the speed limiter, the rider needs to reprogram the ignition curve to unlock the speed limiter.
When I used to modify fuel-injected bikes, I tried removing the speed limiter. The speed limiter on fuel-injected motorcycles is mainly controlled by the ECU unit. Some people flash the ECU program to modify the speed limit parameters, but this requires professional equipment and software. Doing it yourself can easily brick the system. Others install high-flow air filters and straight-through exhaust pipes to improve engine intake and exhaust flow, allowing higher RPMs and indirectly breaking through the speed limit. But honestly, after modification, the bike tends to overheat, fuel consumption doubles, the brakes can't keep up, and going too fast is extremely dangerous. I stopped doing this later.
