Scratching my head

[Rodney.rash]

I bought a used tn55s new holland. It was fine when I turned off. The next day it wouldn’t start.I ran a jumper wire to my solenoid and it started fine but now it won’t go in forward or reverse. Any ideas out there

 

[JasperFrank]

Maybe there is a safety that you by passed running the wire to the solenoid? I'd go back to figuring out what ever fault the stock ignition system had. I have no idea what a Synchro Command system is.

 

[Xfaxman]

Is the PTO on?