So, yesterday, she starts running rough. Having just returned from another Baja trip I figured she needed some love so I cleaned the air filter (filthy) and poured some gas treatment in her. STILL running rough as a cob, and then the "service engine" light came on and it wouldn't idle right.
So I started pulling plugs and sure as shite, there was a nearly melted plug with only a hairline gap. Swapped all the plugs out, new cap and rotor, too, and she purrs again!

Now if someone could tell me how to turn the damn 'service engine' light off I'd be stoked!

i just disconnected the battery for a few and it worked

I believe it should go away on its own after a certain amount of time/ # of starts where the problem has been fixed... or you can take it to Vato Zone and have them clear it for you

Auto Zones in Phoenix won't clear the codes. Not sure about all Auto Zones, though.

Yeah disonnect the negative terminal all night, should clear.