I need help getting my 82 650 yamaha stared again. It had a wiing prob and lost its spark. I installed a new ignition box and coil and still nothing. The back half of the bike lights up but front half is dead. There is no fuse box on this bike (thought that was strange) so it isn't a fuse. Any ideas will be apprietiated

http://650motorcycles.com/manualsOL.html this will give you a starting point for checking your bike