By 'jumped out' do you mean you connected a large wire from one large connector to the other large connector? If so this eliminates the solenoid and is the standard test for a bad solenoid. Yours could be testing positive for a bad solenoid. Make sure you get one that matches the voltage of your system if you need to replace it...
Are you sure you are getting juice to the small terminals when u press the gas? If not this is the reason you have to jump solenoid to run.
There should be diagrams for u in the stickies at the top of this section...go to Yamaha electric...