183cc Big Bore + aRacer ECU Exclusive Base Map + Large Capacity Injector Combo Kit YZF-R125 XSR125 MT125

KN企画 PA-SG0139-ALL 183cc Big Bore Kit + aRacer ECU Dedicated Base Map + High-Capacity Injector Combo Kit YZF-R125 XSR125 MT125 Motorcycle Parts
Introducing a great value kit that includes a big bore kit and an ECU with a base map!
The kit also includes a high-capacity injector, allowing for future upgrades.
The cylinder head is designed for removal and installation as an assembly, eliminating the need for troublesome tappet adjustments and valve timing adjustments.
The weak point of 125cc engines, insufficient torque at low RPMs, is greatly resolved! This provides more余裕 at startup.
The ECU is pre-configured, so after installation, you can start without any complicated operations.
This product was featured in the May 2024 issue of Moto Champ.

Compatible models
YAMAHA YZF-R125 [BVD] Japan specification 2023~ *Note (1)
YAMAHA XSR125 [BVF] Japan specification 2023~ *Note (1)
YAMAHA MT125 [BVE] Japan specification 2023~ *Note (1)
*Cannot be used for YZF-R15 [BVC] Japan specification due to different ECU.
*(1) Wiring modification is required to enable the engine stop function during a fall.
If you want to disable it, you can change the setting in the software and use it (no wiring modification required).
*As of March 2024, the only map available in the software is for the R15V4 Indonesian specification, but we will flash and ship a modified map for the Japan specification (183cc).
*For the above reason, please inform us of your vehicle type at the time of purchase.

Specifications
Set contents/accessories:
183cc big bore kit ×1 set
High-capacity injector ×1
RC SuperX ECU unit ×1
AF2 wideband O2 sensor LSU4.9 included air-fuel ratio module ×1
Dedicated app aRacer X Tune Japanese manual (download version)

■Image notes
*The image is for illustrative purposes only. Includes products of different sizes and colors. Product design and specifications are subject to change without notice. Please understand.

Precautions
*ECU tuning should be performed by experienced individuals with knowledge. Incorrect settings can cause engine damage.
*A PC and internet connection environment are required. Dedicated software SpeedTuningX is used for settings.
*For simple settings, the dedicated app aRacer X Tune can be used, but iOS (iPhone) is recommended. Android devices may not connect depending on the model.
*When connecting with a wired connection, the conventional iLink cable cannot be used. Please use the dedicated ProLink cable.
*The O2 sensor alone is covered by warranty only for initial defects. Defects after the initial ride are not covered by warranty. Please be aware.
*Please inquire before purchasing if you have any questions.
*The included O2 sensor AF2 is not compatible with normal 12mm mufflers. It is an 18mm sensor type for aftermarket mufflers.