I just came across an old Onan G27 engine, seems to be in good shape, hadn't been started in a couple of years and had it running in minutes. Can't find any specs on it ie: torque, rpm. Anybody know anything about this antique? I tried what few small engines sites that I knew of and did a Google search with no results. ( Google a G27 and all you get is Glock). Any help appreciated.