Small Engines (Lawn Mowers, etc.): fuses, troy bilt lawn tractor, fuse block

Question
My 2004 Troy bilt lawn tractor{model 13AJ609G766} will not start. there is no click or any noise at all when trying to start. I had to replace the magneto because the spark plug clip broke off. I have a fully charged to 12.6v battery. I tried jumping the solenoid with a 12v battery with no success.I have located 1 fuse right off the starter switch, but I can't find the 2nd that it shows on the wiring diagram.I don't want to replace anything else until I know the fuse is ok. Can you help me ? Thanks

Answer
Some manufacturers used a fuse block where all the fuses are located in one spot whereas others put them in line where they needed to protect the system.  The fuse holder typically has to be attached to something instead of just hanging there I would luck behind the dashboard and down along the steering shaft.  If a blowing fuse is your problem you should find out why it blew.  Typically it's because there is a short in the system.  Look for a bare wire anywhere along the wiring harness be sure to look underneath where a pully could have worn away the protective covering.  If after this you turn the key and do not have an audible click in the solenoid something in the start circuit is not operating.  The components in the start circuit will be the battery the seat switch the brake/clutch switch the PTO switch in the key switch also don't forget the grounds.  The PTO switch is a double pole double throw switch meaning that it serves two purposes.  It turns the clutch on and off and it tells the system whether you are in the seat or not both sides have to work correctly and test these with a continuity meter.  Turn the key to the on position and follow 12 V through the system it should be on one side of the switch and the other side of the switch when checking seat switch or other safety switches if 12 V goes to ground anywhere along the system that's your problem.  Use connectors and corroded connectors can cause the same problem.  12 V should go from the battery to the post on the solenoid then through the solenoid through the safety system back to the solenoid and then the solenoid engages and 12 V goes across the solenoid to the starter and then to ground.  Don't forget key switch it is a very important piece of the puzzle.  I think if you do this you will find your problem and be able to get your tractor running.  Best of luck with your project