The glory of the World Wide Web is that you often can get information for free, just by asking. In this case, I did a search for "Weed Eater One WE261", and followed the link to user's manuals for many products.
Check the link below.
Google; WE261 grasscatcher. Came up with a few suppliers. This mower is made by Huskvarna under several names; Weadeater, Poulan, Ahrens, Craftsman, TroyBuilt, and prabally a few others. Some dealers are having sales on them as low as $179. GOOD LUCK, PS Mine works great.
Place mower near street with FREE MOWER sign. That is the best way to remove the clutch/drive on this POS mower.