I started my ride on and it will not go forward or in reverse at all.The lock is off so it should be working..any ideas?

If you scroll through these lawn tractor questions, you will note a lot of failed hydrostatic transmissions in the husqvarna line. seems like that is the prime suspect in your problem, if the drive belt is good. i had one and the transmission failed after about 5 years, but I see many with fewer years of wear
with the same problem. a new transmission costs about half of what a new tractor costs. these are actually made by the AYP company which pays a licensing fee to husqvarna to use the name. AYP makes most of the mower lines you see in stores. my neighbor has a craftsman with a bad deck which seemed identical to the husqvarna, except color. However when i went to cannibalize his transmission it was completely different and would not bolt into mine, so i went out and bought a simplicity.