I picked up this Firestone Outboard at a garage sale and am interested in trying to restore it. Where can I find an operators manual and/or a parts manual? Also, how can I tell the year it was made. It has a "463" stamped on one side of the shaft, and "1881" stamped on the other. The carburetor also has a stamp marked AJ16A. It has a few dings, but otherwise seems in pretty good shape. It definitely has spark and compression, but I haven't actually haven't tried to actually start it.