Yeah I went out there and messed around with it until I figured it out. The hole on the hydro pump was throwing me off, but I could see that it really was the only option since there was no other place to hook the spring to. It works so much better with the spring... Before I had to pull the lever up and into the latch on the fender plastic, now you can just release the lever and it sucks it right into place.The spring connects to a small hole in the lever and a hole on the flange of the hydraulic pump. it is missing on a lot of Kubota's and often causes a no-start condition because the pto lever isn't held firmly against the neutral switch!
Again, thanks so much for your quick replies. Guys like you are a hard to find. The dealer near me has a bunch of idiot kids working there and I bet none of them can even spell Kubota without cheating!