Stock gap recommended is 0.040", for Turbocharged or Supercharged Miatas 0.034" is recommended.
The specified spark plug gap for a 1991 Mazda Miata MX-5 is typically 0.044 inches (1.1 mm). It's important to ensure that the spark plugs are properly gapped before installation for optimal engine performance. Always refer to the vehicle's service manual for the most accurate specifications.
.040 is factory...
The spark plug gap is 09.96 The spark plug gap is 09.96
the spark gap is 0.80
spark plug gap for a 2.2l is 0.060"
.045 spark plug gap
0.32 gap spark plug
The spark plug gap is .054"
The Spark Plug gap is .045
Spark plug gap is .060
0.9MM with spark plug gap tool.