spork
down with the sickness
- Location
- Indianapolis Indiana
This summer I had five or six NGK plugs fail from the insulator coming loose from the base. 750cc sx motor running 180psi on each cyl. I've not done much jetting changes or much of any mod changes and this is the first time i've ever had this happen period. Just curious if anyone else has had this happen or knows for sure why (guesses aren't necessary I can do that). Both plugs look exactly the same as far as burn, and I even went as far as shooting the head with infra red temp gun yet there was only maybe a degree or two difference in temp between the two sides.