I have read a lot of threads saying that I should pull off the gray fuel lines on my 1998 XP, but did not know which ones. The ones coming from the fuel tank to the carbs are black, I don't know if they were replaced or they came with black from the factory, but the only gray lines are one large line going into the rear plud in the side of the hull for bilge, and three gray lines with a red stripe on the carburators. Here are some pics. Which lines were bad for failure? Should I replace these as well, or was the problem with only the ones coming from the fuel tank to the carbs? Thanks!