Re: sparkless

"Do plugs just go bad?"

Yeah...they can. They're "sealed" units, after all. And you never know what 
sort of treatment spark plugs were given as they were shipped from factory to 
store, stocked, etc. Some guy drops a package of
'em before they get to you...and there you
are! 3 survive the fall but 1 "unseals" and/or develops a hairline insulator 
crack,
etc. which decides to "show up" after 2,326.5 miles in service.

"Right on" with the BPR6ES, mate.

Cap'n Bob
Basic Frog