Immobiliser is gubbed. (I think). details are sketchy on how to bypass this for obvious reasons. Any one have any experience doing this? I’ve looked at the wiring schematics and there’s about a billion connections and I have a funny feeling I’m gonna fuck this up. 

you can buy yamaha compatible immobiliser emulators on ebay (about £15). they feed the expected signal to the ECU so it thinks the RFID key is in the ignition and is being correctly detected.

Best not tell your insurance however because with a factory fit immobiliser they wont touch it.