Yamaha Fault Codes List Error codes Yamaha R1. Explanation and diagnosis. To enter the diagnostic mode and check the existing error codes in memory, do the following: 1. Turn off the ignition, the engine stop button to put in the ON position. 2. Disconnect the fuel pump connector. 3...

My bike has just failed its MOT because my indicators stop altogether when the front or back brake is applied at the same time. My horn and other lights work fine. I have cleaned the earth on all the indicators but still the same problem. I put a voltmeter on the indicator which showed the...