The Sea King has the easy pulling oval pulley in the auto-rewind starter and rubber motor mounts. (which are more robust) They both use the same lower unit which can be damaged if water gets in, both used a 4 gallon fuel tank. The Fleetwin has bronze bushings on the connecting rods. The spring mounts are about 5 pounds lighter, powerhead about the same weight. Either one is bullet proof if properly maintained. Things to watch for – water in the gear case. (Rusts the clutch) leaking bottom main seal. (allows water into the powerhead lubrication system) Lack of grease film on driveshaft spline (causes crankshaft rusting) . . . 😉
