Honda tractor wont start!! Not the battery, wont even turn over

To make sure it is the starter and not some other electrical problem. First make sure the blades are disengaged and it is in neutral. I know that sounds obvious but you can't be too safe. Now, connect the Neg. jumper cable to the frame Connect Pos. to the bolt on the starter where the pos. wire is connected. It should be a red wire. If the starter turn it is good. It should not matter if the key is on or not for this. If it is good I would suspect the starter solenoid. Not sure where it would be on a Honda but the Pos. cable from the battery is connected directly to it. If that is good check the safety switches. There should be one for reverse, usuall at the shifter. One under the seat and one for the blades at the blade control lever.