Hi, just bought a 93 Honda mtx 125 road legal. Back light doesn’t work I replaced the bulb to no avail, there is a third wire that isn’t connected going to the rear light? Also I would appreciate an overall lubing and servicing ect, bike runs fine! I do have the correct manual in case you need to refer to it. You’ll be working under cover next to the house so you shouldn’t get wet if indeed the weather turns to crap.