Welcome to TBN.
I'm no Bobcat expert but I'll share my experiences.
Does the starter engage? Does engine turn over but not start? -OR- When you go from ON/RUN to START nothing at all happens. Do you have any error codes on display? On my T-190 I hop in the seat put on safety belt and pull the seat bar down. I then put the key in the ignition and turn it to the first position which is ON/RUN. I get one audible beep, and the display lights up, all the gauges go to full scale then back down to normal reading. Depending on temperature the hour-meter display will start counting down "GLO9" "GLO8" "GLO7" at "0" I turn the key to start and she fires right up. Once mine wouldn't start. I pulled the codes and it showed "fuel solenoid open" I think that was the code, may have been something similiar. I took the electrical connector off the fuel solenoid and cleaned it up and haven't had any problems since. To get your error codes push and hold the headlight switch for several seconds. The hour meter display will show the error codes.
Good Luck...let us know how you come out.