I am in the process of replacing the cab on my MF175 diesel. I removed the oil pressure gauge,temperature gauge and electrical wiring from cab to tractor frame. Also disconnected the throttle and stop cable from the fuel pump. I decided to try and move the tractor...Now it will not start.. The motor turns over(in past it would turnover once and start). I assumed that the fuel pump was my problem, I tried the stop activator at different positions(I did not mark how it was adjusted before disconnecting), the throttle I held it partially open when trying to start it.I reconnected all the gauges. Help, what am I missing...thks.