toro 8-25 ignition

hello
I bought a toro 8-25 mower the thing is cute . I ran it around the yard a couple days mowed with it Sat. It just died. I cleaned up the key switch it started and ran for a minute cleaned up sylinoid and it did the same . any pointer to save me time going over the electrical system?
Thanks
Roy

Safety relay was the problem I ended up changing the silinoid , key switch and relay