The Spark plugs are all at their 1mm gap, the plugs have a light grey tint (normal). How do i check if the leads are breaking down, keeping in mind that i can only really get on one end of 2 leads, as the other end disappears straight in to the coil. Under the plug cover i have 2 coils - A coil per 2 plugs, with the coil sat directly on top of 1 with a lead running to its neighbouring plug (twice).


Cheers

Gareth