Well back this spring about two weeks before mowing season started, I changed the oil on a 2001 Dixie Chopper with a 25 hp . Replaced the Amsoil and regular filter as well. One day the first day to go out mowing one of the guys call me telling me that as soon as he pulled it out of the barn that the Horn would not quit blowing. I told him to take it to the dealer and they said it was a bad sensor, so they cut the wires to make the horn quit. I get back and the lifters are knocking . Made took it back Monday they said bring it by Friday. Thursday it sticks a Valve. They fix it.. Still lifter knocking!! They assure me it is ok to mow. Week later it loses power and starts knocking Bad!!!! Then I put a oil pressure gage on it and it reads like 2lbs. then BOOM it locks up. Now whos resposible for the engine?? $1800 is as cheap as I can find for a new one. It went out of Warrenty back in September. Sat all winter, then blows at 950 hours. I have always herd lifter noise from time to time since it was new. Was this a faulty motor, and whos should be responsible?? I always changed the oil on time as well.