I have an 1886-01 with hydrostatic transmission. Everything works great on it, engine, hydraulics, & mower. Thing runs like a scalded dog. Only problem it has is an initial hesitation with the transmission. It's like it needs to warm up before it wants to run. It kind of jerks forward and in reverse also. Then when it goes, it really goes. Anyone have any idea why? Oh, the fluid was changed when I got the tractor, along with the filter and I keep the fluid level up where it should be.