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Hello to all. I am new here and not sure if I'm posting correctly. I purchased a used (1998) GH 721 gas and trying to do some maintenance on it. I notice the hydraulic fluid gets very hot after 20 mins. operation also not enough power to climb a 45degree hill. I am going to change the fluid &...

I recently purchased a used 721 (gasoline) about 10 yr. old. Only problem the tire are pretty worn. The tires start spinning on slight left or right inclines. My question, should I invest in turf tires or go for the bar type as are now on it?. Any suggestions-ideas would be appreciated. The...