Hey guys. New to the forum. I have a 1977 L-245. The tach recently stopped working. I read some threads here and checked it by disconnecting the cable from the back of the tach. It does not spin. When I disconnect the cable from the motor it does spin. I guess I need a new cable. Is there any trick to re-installing the cable on the back of the tach unit or just screw it on? The end of the cable just looks like a tightly wound spring (no fitting or anything when I pulled it off). The rest of the guage (hour meter, indicator lights) does not work either but I think that is a different issue since the fuse that feeds it keeps blowing as soon as I replace it. Thanks so much for the help.