In AtvAction mag they did a test on the Lakota and and say to run NGK DR7EA spark plug. In my lakota which is far from stock i'm running a NGK DR8EA. What is the difference and between them and is it ok for the quad.

 

i think that the 7 shows that it is hotter or colder...can't remember which way the numbers go

 

So it really does not matter which one i run in my lakota

 

http://www.ngk.com/sparkplug411.asp, at the bottom, it explains the numbering system. The lower number, is a hotter plug.
Spark plugs dont create heat, they just pass it on to the head. A hotter plug transferrs less heat than a cold plug. Hotter plugs are used to burn deposits , that a normal plug cant...due to jetting or oil burning.
If youve been using the 8, and it doesnt foul, then keep using it.

 

Yeah i been using it since i got my quad and even when i put my pipe and jet kit on, it has never fouled out on me before so i'll keep using it like you said. Thanks