Dealing with a check engine light on a Yamaha can be stressful, but most modern models have a built-in diagnostic system that displays specific numerical codes to tell you exactly what's wrong.
Below are some of the most frequent codes found across models like the MT-07 , FZ6 , and R1: check-engine-yamaha-fault-code-list
by holding both buttons again for two seconds until you see a code like "d01". Dealing with a check engine light on a
while continuing to hold the buttons for about 8 seconds until "DIAG" appears on the screen. check-engine-yamaha-fault-code-list