For a while now, my Negrini (Franco Morini engine) has been running without much power. It goes about 22 on flat ground (and is still stock). So I bought a compression tester and found out that I'm only getting about 90psi compression. I'm assuming that this is due to a bad head gasket, since the moped sat for about 27 years before I bought it. Does anyone know for sure what gaskets fit on an MO1? I've found some at 50cc.nl and mopedjunkyard.com. I believe that the ones at mopedjunkyard would fit, but are any of them the correct gasket that I need to replace (I will replace any that I get, but I think that I should definitely fix the problem one). Here are the links:
and the other one is on 50cc.nl
Part numbers 15051, 5545, or 6568
Any additional info would be appreciated.