I have a yardman mower that won't go when I put it into gear. Is there anything besides the drive belt that could be the problem. The last time I used the mower, I ran out of gas at the end, so I just pushed it into the shed. Now it won't go into gear. Thank you.

Model number would be helpful.

Hydro stat drive/ or manual/ or automatic. Verify if it applies that you disengage the neutral lock that allows/stops free wheeling then re-engage