what drives the speedo on the front wheel ?
That "tone ring" circle thingy with the rectangular slots all the way around and the electric/electronic sensor that hovers over the slots.
Black wire goes on the end with just one connection. Green w/stripe on end with two connections (spark plug wire/fat, black & skinny green). According to the wiring diagram. A smart a_ _ answer would be "back on where you pulled it off!"
I even draw pictures when I remove the spark plug to make sure it goes back inna right place!