1989 15 johnson was recently submerged- i flushed everything out, put alcohol through it, new plugs, let dry out completely ect. ect... Outboard had no problems prior to this. Now it will still start, and idol perfectly, but when i get on it to get up to cruising speed the motor won't REV up all the way and it seems to be bogged down- similar as if it had fouled plugs, but they are not... anyone have any idea? thanks.