That plug is perfect BuggyMaster
When the plug is light gray or white, it's running lean.
and you need to go a size bigger on your main jet
When is dark brown or black, you're running rich.
You might want to down size to a lower jet.
Like Buggymaster said, if your're running lean "That's Bad"
It's always better to run rich than lean.
booda72 like Buddymaster suggested, put in a new plug
and go for a good 15 minute run and check the new plug
afterwards. And go from there