MOPED ARMY

I have a 70s ish motobecane moped.

The problem I'm having is that its really hard to pedal and turn over, to start the motor, (decomp works but still difficult). The bike runs good when it's going but isn't nearly getting as much lower as my other ones. Any suggestions as to why I might be having these issues? (Points are clean, new plug, clean piston and head, has good compression, new gaskets so I don't think there's any air vacum/air leaks)