Went to get my Cub 184 ready to mow yard from winter storage and it wouldn't start. Got it up to my shop and determined there is no spark. I have put a meter on the + side of the coil and I get 12 volts there as it should. Its a 12 volt system and is designed to deliver 12 volts to the coil when starting. When I check the - side of the coil and open the points I also get 12 volts there. Shouldn't I get a lot more voltage at that point to fire the plugs? I took the points out and cleaned them, put them back and re-gapped them. Points are good with no pitting, just some darkness on the metal which filed off. I'm getting 3 ohms of resistance across the coil terminals so I'm thinking that isn't the problem. Possible bad condenser? Tractor ran good when parked last fall. Looking for some thoughts?