i just picked up an 83 v45 sabre. i got it running a week after i bought it but i have some major electrical problems i cant figure out. the speedometer and tach dont work but the lights that are behind them light up and the only dummy lights that work are the turn signal ones. all my turn signals work and headlight high/low beams work. the horn also doesnt work nor does the digital display on the right side of the cluster, which i believe is the temp gauge. and none of the buttons to reset the trip and to set the clock work. can anybody help me out? id really appreciate it