What is the spark plug gap size for a 87 Nissan d21?

The spark plug gap size for a 1987 Nissan D21 typically ranges from 0.039 to 0.043 inches (1.0 to 1.1 mm). However, it's always best to consult the owner's manual or a service guide for the specific engine type, as gap specifications can vary slightly based on the engine configuration. Proper gap size ensures optimal ignition and engine performance.