Air Compressor Leroi Wont Start

Hi Cass, I would like to ask you a few questions. I bought the compressor below and it will not start even with starting fluid. I had a mechanic check it out and it is getting fuel to the injectors. we bypassed all the switches and tried to start it that way with no luck. What else could it be? I have the following compressor. Year: 1998 Manufacturer: LeRoi Model: Q185DJE Hours: 1188 Serial 3272x2864