Not everything that looks like a Ford solenoid is a Ford solenoid! Look at the schematic diagram of the generator, look in the replacement solenoid manufacturer's buyer's guide. If you don't have a schematic diagram, take apart the original if you didn't already throw it away. How is it wired inside? There are many different solenoids that look the same! The wrong one may not work, or it may only work once. As far as Nando goes, if he is like me, then he may get very frustrated trying to help someone who won't analyze the problem, and give all pertinent information. When speaking, face to face, it is easy to miss details, and easy to ask for more info. When writing, it is easy to reread your question, and make sure it makes sense, and is complete. If you are unable to help someone help you, then they may not be able to help, or may make things harder for you. A Ford solenoid can survive the high current of a bad starter motor. This can be whatever the battery is rated for. Have you looked at the cold cranking amps of a car battery lately?
If all else fails, use the rope!
Rod