I think you guys are right - it's a 641 with dual hydraulics.

This has been sitting in a garage for a bit.

Reverse on stick is up to the left, first to the right, I believe 2nd is down and 3rd to the bottom right.

I was able to get the blade in front to raise, and the bush hog behind was being stubborn - it eventually went up - almost as if the hydraulics had to be pumped up or something.

The choke didn't have a knob on it, but I since found where it was at.

At first run, in the drive way - I accidentally ran it out of gas.

It seemed to be starving for gas and had a clear fuel filter that I replaced. I removed the screw from the bottom of the carburetor and some crap came out of that.

When I ran it out of gas - it sounded great. Do you guys think I pulled crap into the carb?

Had trouble getting it started again - charging the battery overnight.

Some kind of guide on this thing would be great.

Maybe the fuel problem is with the shutoff valve.

How should I use that shutoff valve, turn up down, or turn several times...

Enclosed picture of the fuel shutoff on this.

Is this a ball valve type of setup, or should I turn it clockwise for on and counterclockwise for off?

This could be the fuel problem....

Does anyone feel that this is a huge loop to get from the gas tank to the carburetor. I haven't found a picture of how an original one is mounted. Maybe all that tubing is starving the carburetor.