[mgs] Cleaning spark plug threads

[walter menge <walter.menge@gte.net>]

Hi. There is a tool for cleaning spark plug threads. It cleans 14mm and 18mm 
threads as a tap would.
Use a little grease on a tap while cleaning the threads removes rust and dirt. 
Tap a turn or two and clean and 
repeat until completely clean all the way through. This works rather nicely 
when tapping new threads.
Thanks Walter.Menge@gte.net in Louisiana (The Sportsman's Paradice)