I have a B 2650 that I bought new seven years ago, now right at 850 hours. I went out yesterday to till in my garden, engaged the PTO and heard the fuel solenoid click to shut the engine down. I disconnected the tiller shaft from the PTO and it did the same thing. Everything else works. I disabled the safety switch on the seat when I first got it because sometimes I have to get off and on. I’ve checked everything I can think of, I need help from the gurus… thanks