Joew, if you don't know sachs, that is true. With a Sachs, the decompression lever and starting clutch are on the same cable, it's a pain in the ass set up, but, it's what is there.
KennyV, One thing that may have happened is that the basket that holds the clutch plates may have loosened up. Check that The nut on the end of the clutch shaft is tight when you re- assemble it, and use a deep socket around the shaft to pound the bottom piece back on. This can be done with just the side cover taken off the engine. Ideally there should be a notch and key there, but the friction fit on the shaft is enough. Try and find an exploded view of the sachs engine and clutch, before you tear it too far apart.
e-mail me if you need some more help.