Read this TWO times out loud to yourself. http://www.dfn.com/benkaren/plugchop.html When you warm the bike up completely on the OLD PLUGS and get to the exact spot you can do a long 6th gear pull, then shut it down and quickly put the NEW ONES in and start it and instantly go WTFO into 6th for a bit. THEN hit the kill switch and pull in the clutch. Then coast to a stop and what not. Take the NEW PLUGS out and stick the OLD ONES in and ride home and chop the NEW PLUGS that you just ONLY did a WTFO pull with. Dont idle for more then a couple seconds with the new plugs you want to chop and check.
Do the steps to a "T" to get the results you want. Mess with a step then it wont work, follow me?