this is the second time now... #915 idles really rough , knocking you wouldnt believe, and almost stalls in neutral... need to have the cluth in.. brought it in to the dealer and said spark plugs 1 and 3 were bad - it was misfiring... so they replaced it and it was fine for about 1 and a half weeks! its doing it again! so i need to bring it back again! .****! its not fair...