Hi Guy's

was replacing a compressor in a Williams whu 4518y condenser today,Tecumseh compressor complete with new electrics.Problem i have is i cant get the compressor runing,i have had it run but the start capacitor starts to 'crackle' so i shut i down.The only differnece i noticed id that ALL the compressor cables went straight to the relay in th eold electrics box but on the new one only the run cable goes to the relay the common and start are hooked up to terminals besdie the relay.I swapped all the cables from the old box to the new box but the only thing that will run is the fan?Does anybody have a wiring diagram for one of these?