I have been using the tractor regularly all this year – grading, front-loader work and cutting - and I believe that it has been running as strong as ever. Last weekend while using the front-loader it started to bog down while scooping up wood chips from a huge pile, and then eventually it started to bog down while I released the clutch to move after a dead stop. I thought it could be a fuel line blockage. It was behaving similarly, I thought, to a previous fuel line block. Sure enough, I found a few strips of gooey silicone strips in the bottom of the tank (from the previous owner’s repair attempt to seal up the gas gauge) and a decent sized chunk of the stuff wedged into the fuel channel orifice of the sediment bowl – the part that screws into the bottom of the tank. I started it all back up and it seemed to run quite smoothly during a 15 minute warm-up. I thought problem solved. Next – I put the rotary cutter on. With the PTO engaged, as I released the clutch to get going, it cut out pretty quickly. (The power director is in the low gears.) I was able to coax it to do a few strips of cutting with decent power, but at the slightest uphill grade or thick grass/weeds, it would begin to die out again. If I pushed in the clutch while it was cutting out, it will regain power. Finally, as I went to park it and was maneuvering it around, it just cut out while on hard, level gravel. I am glad to have cleaned out the fuel line like I did, but I still have, probably, the same issue. As a side note, and I don't know if this is related, but the battery has been dead the past week or so, seemingly coinciding to all of this. I have had to jump it the last couple times to start it. I put the charger on the battery last night. I don't think it is either charging or holding a charge. Help! If you need more info or clarification, please ask. I thank you!