Well, you know the old saying "I'd rather be lucky than good" When I said I had checked the plugs, I had only pulled a couple and they looked OK.....Went out last eve and pulled all of them, everything OK till the last one in the back drivers side, hardest one to get at. Sure as heck it had a slight whisker, cleaned it off, and miss is gone! All plugs had a nice light brown center electrode, but outer ring lots of carbon and black. Guess the big poncho isn't too happy with my farmer cruising speeds! Need to blow the carbon out once and a while! Hard to believe that the whisker would last that long. Thanks guys for your help, got lucky on this one.
