Ola, Cubero.
Welcome to iboats.
I do not understand most of your post, except that your engine seems to work fine when out of the water and not under load.
Any two-or-more cylinder outboard can seem to run well with no load when only one cylinder is working. This is not an engine running well, it is a very sick engine
pretending to run well.
If you will please post your question. . .a reply here. . . en espanol one of our espanol speakers may be able to help you further.