1986 Mazda Truck Mazda B2000 carb prob

When it stalls out-do below immediately to determine if its a fuel or spark problem

Get a carb cleaner and spray into the carb or the throttle body on an EFI. Did it start and die? If not disconnect a sparkplug wire or 2 and ground it to the engine -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel problem, check the fuel pressure to rule out the fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil, distributor pick-up coil, ignition control module, cam and crank sensors-

Check the fuel pump pressure-this will point you to a failed fuel pump before you start blaming the carb or injection unit-If its a carb could be that the choke plate is not opening-remove aircleaner and look in there-when engine is fully warmed up it should be wide open-