Originally Posted by
Klimpen717
Is it 0.7 mm for idle gap or is it 0.5 mm?
There is no perfect idle Gap setting,
It will always vary pending your location and atmospheric conditions... the fuel you run and its oil content, Engine temp... the engines compression... Glow plug type etc etc
Generally in the 0.5 to 0.7 mark is where you will find the correct gap for a well tuned engine as the guys have stated
Dave