I bought my grasshopper 721 Diesel new in 2002 - and it has never failed me - just change fluids and sharpen the blades. Well today, it happened - it won't start (must be a safety switch isssue) and the Grasshopper dealer has a 2-week backlog. Their service guy was nice enough to tell me keep wiggling and keep trying....but I have wiggled to no avail. Today I am going to attempt tracing the wires to find/bypass switches but can use all the coaching I can get. Ideas?