below is a plug pulled from my sym jet , you can see the brown'ish taint to the plug thats your aim the plug attached is tell me that the sym is just right on burn ratios. hard to tell but im gonna hedge its a little on rich side comparing it to the syms plug, its also a fairly recent change and plug chop you still have a white'ish core may need a couple more miles before it shows a true colouring
