S-T P4

Hi all, does anyone have a copy of manuals for a Stuart Turner P4 engine they would be willing to trade for some beer tokens ??? I am still having trouble with my engine and have decided to do a total strip down to check it all out. When you fill via the dipstick which parts does the oil lubricate, how does the big end and the bearings get lubrication??are they just fed by the amount of oil in the fuel mix. I know they may sound like stupid questions but I have had nothing at all to do with 2 strokes.