I recently bought a 96 champion with a 175 eveinrude fastrike. One day the boat ran perfect but a lil hard to start never nocked or anything . The next day i was going back to the lake and it wouldnt start for anything . The first guy i took it to said i needed a new power head and a lower unit and gave me an estimate of 6900 . hes nuts. The next guy i took it to said there was no way i needed a power head if it didint act funny or anything and this is coming from a 72 year old man that has worked on motors for a liveing his whole life . He put it on some kind of a machine and it showed it wasnt getting enough spark . cuz a motor just done blow over nite .but it does have a small crack the size of a hair and maybe half an inch long but it doesnt leak . its on the right side of the motor on the top corner . He said this should matter . the boat has ran fine for a year with it . Maybe something come loose in there down the line and cracked it but it has been fixed . What do u guys think is wrong ? I have tried to explain my probs the best i could