glad to be here. New owner of an older F725, 2002 model. Got it for 500 bucks. Runs great, changed the oil and oil filter and put new gas in it. Seems to boog down when I engage the blades if the grass is any lenth at all. Just changed the fuel filter hope this helps. The gas cap says not vented. Is there a vent hose to the tank? Or anything else I need to do? Thanks Joe