Everything was going good this last week. Went to use mower this morning and I had nothing on the side I replaced the pump. I thought it might have had air in the system so I put it on jack stands and bled the system. After bleeding it worked okay but when it would cool off say in between jobs ( more than 20 minutes of not running ) when I would go to take it off the trailer I would have nothing on that side and then it would "kick in" and be fine the whole time on that job. Still thinking maybe I hadn't bled all the air off when I got home put it up on jack stands and put it to half throttle and full stick for 30 minutes. After letting it sit for an hour got the same thing. No response from that side when I would first move the stick then it would take off. What is my next step? Wheel motor going bad?