I am curious how to adjust the timing on my yamaha hpdi z200txrz. The timing at idle should be 4 degree BTDC and the mechanic said that my motor sounds like the timing is off. I am going to get a timing light to check it but cannot see how to adjust it if it is off. I have the yamaha service manual and it does not say anything on the timing other than the specs at idle and wot. Also, I pulled my plugs today and the colors are all over the place. These plugs were just installed and have around 15 hours on them. See picture and any advice would be nice as this engine has a small knock and I am concerned.
thanks