In the Evinrude 250hp DI, 2004 I use Champion QC12PEP plugs.
After say 60 hours the gap increases from 0,8mm to 1,6mm because the centre electrode shortens from 1,2mm tot 1mm and the ground electrode bends 0,6mm.
Is it possible to regap the plugs to 0,8mm instead of puting in new ones? That should be done after 100 hours or more.
