grease

I can't seem to fine any directions on how to lube the gears, shafts, bearings or whatever for engine and bike axles. Does anyone have any good instruction on this? Video links would be most excellent. Thanks!

This is leaking through the crankcase.. ..Seems like grease, possibly from the clutch shaft. There is a small piece of gasket missing there... Was thinking it is some assembly grease for the clutch shaft... Also wondering about using some RVT gasket maker sealant right there...