New to posting of any kind. I have a 2005 Walker 20 HP. I use it only to cut my own 2 acre lot. I purchased it at a bankruptcy of a landscape maintenance company. So, its probably been used a lot by the previous owner but I use it a whole lot less. When purchased, the hour meter indicated about 1,100 hours. The previous owner did have a full time maintenance guy responsible for all the machinery and I can see evidence of the machine being "looked after". My issue at this time is with the grass handling system. My lot has a lot of big trees with lots of leaves. That's the main reason I bought the Walker-to pick up the leaves in the fall. This past fall was the first year I used it to pick up the leaves. I noticed it didn't pick up all the leaves like other Walkers I've seen. It leaves a lot of debris-pieces of leaves & grass. When I lifted the plastic box & the seat, etc. there was a ton of leaf pieces. It was obvious that the Walker had picked up the leaves, chopped them into small pieces but they didn't make it into the plastic box. People suggest that the blower fan may be worn out with age & use and/or the belt may not be properly operating. So, I'm currently thinking about changing all the belts and replacing the blower fan blade and examining all the chutes & other plastic bits to see if there is a tight fit. I'm interested in learning opinions of others who have much more knowledge than I with Walker mowers. So, any advice would be greatly appreciated. Thanks.