Hello, im new to the forum but have been visiting this site for some time, i have an old evinrude 5.5 that i found at a friends, anyway it had been under a shed for many years, probably longer than i have been alive, well i brought it home and had one of the plastic one line tanks, i ran the gas line, and then the air line to a fitting i screwed into the gas cap, i set and cleaned points, carb rebuild using old float, ran great... after a while i ran too hard up to the bank and submerged it, it wouldent start, so it sat back at my house for another couple years, i have since got it free but broke two head bolts flush... put it back together and it runs, i just got a line on a 1962 sea king 5hp that is in better condition for 50$, i know that they are very similar, but what are the only differences? and i plan on using the best condition parts and start swapping...