What causes your 1986 Mazda 626 to cut out when accelerating from gear to gear?

The cutting out of your 1986 Mazda 626 during acceleration can be caused by several factors, including fuel delivery issues, such as a clogged fuel filter or failing fuel pump. Ignition problems, like worn spark plugs or a malfunctioning ignition coil, can also lead to engine misfires. Additionally, a vacuum leak or issues with the air intake system may disrupt the air-fuel mixture, causing the engine to stall. It's advisable to perform a thorough diagnostic check to pinpoint the exact cause.