Compatible with 2002-2021 Yamaha models: YZF R1, YZF R6, FZ6N, FZ6S, XJ6, T-MAX, X-MAX, V-MAX, MT03, MT07, MT09, MT10, MAJESTY 400, XSR700, XSR900. This updated version features a redesigned unit with the following improvements: - Custom firmware for broad model compatibility - Reduced power consumption for lower standby current draw - Higher-rated capacitors to prevent failure - Dual-layer PCB for improved resistance to corrosion in damp or wet conditions - Compact design with shorter wires and a 30% smaller PCB for reduced size and weight - Water-resistant casing to prevent moisture ingress Designed for the following purposes: - Engine swaps where the original immobilizer unit is incompatible with the new ECU - Replacement of damaged immobilizer units due to theft or recovery - Avoiding high costs associated with replacing matched immobilizer and ECU units through dealers - Use in project bikes with Yamaha engines and ECUs but no immobilizer, such as for track day applications - Diagnostic use by eliminating the immobilizer as a potential cause of starting issues This 6-wire version offers maximum compatibility by utilizing the full manufacturer wiring schematic, which helps maintain immobilizer dashboard LED functionality (varies by model). Custom firmware is programmed in-house to ensure wide compatibility across listed Yamaha models. If this unit is not compatible with your listed Yamaha model, return for a full refund. Installation Instructions: 1) Trace the wiring from the ignition key transponder to the ECU, typically located under the fuel tank or near the headlight. 2) Disconnect the original immobilizer and connect the plug-and-play emulator. 3) The vehicle can now be started without a transponder key.