More to Learn about Spark Plugs

Size

Let us distinguish the important difference in spark plugs threaded ends. They come in four diameters and lengths. They come in nominal 14, 10, 12 and 18 millimeters diameters. Previously, there was a slight difference in thread configuration especially in different countries. However, the international standardization of the thread forms made it uniform. These new dimensions are now being followed by motorcycle parts manufacturers.

Usual Errors

There can be lots of error in selecting the best motorcycle parts especially in the case of spark plugs. The very usual error is using 3/4-inch plugs in 1/2