I was with a custom cutter this year with a 9650 walker machine. After cutting for 30 minutes and being stoped for 6hrs with an electrical problem on the first day, we got going again about sunset and ran till about 11. The next morning we started it up and it was blowing black smoke terrible. Put fuel in it and it had burned 80 gal. Deere changed an injector and fixed problem. Ran four more hrs and alt. pulley fell off. We had a great start, Ha. Ha.