I finally mustered the courage to take a dremel to my crankcase to file off some pieces that prevented my 70cc piston from reaching bottom. Because of where I was grinding, I was unable to prevent all (most) of the metal filings from getting into the case, unfortunately. I need to split the case to give it an extremely thorough cleaning, but can't figure out how.
I found Dan's guide for splitting a case, but I need specific information for how to do it for an A55 kickstart engine. I also tried searching the forum, and had no luck with that either. I would really appreciate any help or tips offered.