Have a 2006 RKC, 9500 miles, never any trouble. Engine light came on while riding with no symptoms of any kind. pulled a code P1356, no combustion rear cylinder. Had this happen after changing plugs several thousand miles ago...perhaps I never cleared the code correctly..not sure. Any way I had three suggested part numbers displayed. one was 67033-04a which is the security system contol module (not having any problems there, it works fine) Also showed part numbers 68922-00d and 141NR0040.....Any one have an idea what these may be....I was able to clear the coldes per instructions on this forum, but am unable to clear these part numbers from showing...any suggestions

Thanks....you guys have not let me down yet........