I had the same starting and stalling issue with my BX25 (delivered in June). I found that dirt had gotten up between the PTO handle and switch and the handle wasn't making proper contact on the safety. Once that was cleared out, the problems were gone. I've powered washed mine with no issues to report. I did have one other starting issue and that was under the rear fender is a little black timer switch that I swear was just hanging when the trator was delivered. Somehow, that little box got crushed (pinched) and the tractor wouldn't turn over. The dealer came out, figured out the problem, put in a new timer, mounted it with a bolt and nut under the fender, and then charged me $275 for the service call and part. Had just 30 hours on it at that time. I was more that a little ticked off! I call it a manufacturer defect and part should have been replaced on principle for nothing. I just spent 25K to buy the machine!