Before trying to circumvent the electrical system to solve the problem, I suggest you go through the electrical troubleshooting procedures listed in this service manual first. Can you do what you are suggesting, yes anytime is possible, but the fuel injector solenoid is run through a control board and I’m unsure if there are other things connected to it. Come back later if you have more questions.
https://www.toro.com/getpub/45560