water leaking from engine

Hey guys, so last summer I purchased a 2001 GTX DI and it has been nothing but a headache since. I have owned a few skis prior but never had to do a complete rebuild on one. I am fairly mechanically inclined so when I purchased this ski in need of a rebuild I didn't think much of it, until I did...

have a 2002 sportster LE had it for 3 years great boat. Had a huge storm flooded the boat ( has happened b4) so i started the process of draining the engine etc etc I noticed a black thin plastic line with a gray-white end on it had com disconnected this is one of 4 thin black lines that...