I have a model E10SELCNS that I picked up for cheap (free) that I want to see if I can get going. I've been looking on ebay for the service manual and I can get close to the year, but not the exact one for my model. I notice on ********** that this model shares many parts over several years with several other models. If I can get a manual from 1981 or 1983 would that work? The pistons are stuck and I want to take the power head apart to see if I can free them. This will just be a learning experience for me so if the motor never runs it will no big deal (of course it would be great if I could get it going).