125-200cc Installing stock headlight on '11 WR150

The manual doesn't cover much on this, just replacing the bulbs I think was what I found and general area that the wiring is. I have a night race this weekend and would like to get this hooked up (as an add-on to a good helmet light) but just have a box of wires and parts I got with the bike when I bought it but no directions on install... if anyone has a link to something or info. on how to... that would be great!! thanks Also if anyone knows how many watts does the stator put out?

I wired it up last night and the light worked when I started it this morning, then it went out. The connector (yellow one) near bottom of the picture with black end on it was fairly warm (bike was on for maybe 15 seconds). I was going to move the ground to a different spot and try that. Is the wiring correct? The dealership didn't really have much info either, the service manual is very vague as well so just trying to figure it all out.