You guys helped me narrow down my motor this far so I could atleast get parts for it. Does anyone know the differences, it has to be one of four models 55872, 55873, 55972, 55973, any help would great I got it running but I would like to get a manual to fine tune it. Do you think they would be close enough that the wrong manual would still be close enough? <br />I appreciate any help, I know this might be a tall order, I can give a description and or list part numbers.<br />Thanks, Jarred