Re: submerged starter
The most common problem with submerged starters is stuck brushes and corroded brush wiring and or brush springs. The windings are covered in shellac and unless they have been nicked, will survive if they are washed. If your starter has been working, but is now cranking slow or intermittant, most likely one or more of the brushes are not making contact. If you have never replaced brushes in an ignition protected motor or starter, I would suggest getting a new or reman marine starter. If you are familiar with safety practices....and the skill to deal with cleaning up small corroded parts and possibly having to do some soldering....go for it.
