With my 85er GPz 750UT the starter freewheel is defective. The engine wants to start, but it doesn’t work because of loud clack-klag-klag etc. Since I have never changed the freewheel, I try this first with the spare parts engine. Oil pan away, clutch basket away and now the oil pump would be on it. The problem: One of the screws is closed and can not be solved. Is the original so that the screw does not loosen? (see photo) Do you have an idea how to use the Schra ube get out? Edit: Added the photo