My wife has an 03 justa. I just noticed that her back up light is out. I haven't checked it out yet, but if it is just the bulb is this a simple thing to replace or are there complications?

 

My light went out on my 02, went to change the bulb and...Nothing! New bulb did nothing. Turns out the rev gear has a switch on the tranny that turns on the light, they apparently tend to go dead. I took so long to replace it eventually the light started working again! Perhaps you will get lucky but I would do some research into the switch. If its the bulb it is not too hard to replace, but do it when the exhaust is cold.

Good luck!
Jason

 

It is the back up light switch:

Check this thread.

 

Sorry to hear about that! From what I remember the part was reasonable and the job was not too hard to tackle it myself.

Goodluck