Spark Plug Gap - NGK Spark Plugs - Tech Video
Correct way to check, set and adjust your spark plug gap. NGK Spark Plugs USA.
Bill K How to gap a spark plug
easy video on how to gap a plug fuuun stuff
Spark plug gap, setting the spark plug electrode gap
here is a quick clip on how i set the electrode gap on spark plugs, there is many deferent methods, i just happen to have good results this way ...