Lights went out

[1RobAusdemore]

I recently bought a 2003 EC250 and really like it so far. When I bought it the low and Hi beams worked the tail light worked, but the brake light did not work if it has one. After running through a tank of gas, at some point the low beam and tail light quit working. The high beam still works but when it is on the speedo quits working. It is a Trail Tech I think, assuming it is aftermarket? Also did it have a brake light switch when it was new? It is at my cabin, and I'm not so I have a week to get advice and ideas.
- Is there fuses?
-what gearing for a low 70's mph top speed?
-does it have blinker book ups that can be just plugged in?
-I also have this posted in electrical, but I figured more traffic here.
-thank you. Rob.