I just purchased a 1958 Puch ms. 50 moped that i am having. A problem removing the crankcase cover. It is in a bind trying to remove. The cable was broken and frayed and the bike was in a bind trying to turnover. Also the dipstick is bent and wont come out. I don’t want to do anymore damage to it than. Has already been done. Any ideas on this one. Would be appreciated. Thanks,Allan