[cl65ame]

The amount of lead an copper is quite low in the analysis and can be attributed to normal wear on an engine of that age. Bearing are in a constant state of wear no matter how often you change the oil. The oil just slows it down.
I make it a habit to cut open my filter at every change to identify wear in the engine. I routinely find a small amound of metal in the pleats that is non ferrous metal. normally Aluminum. Some of this is still residual from a clutch failure 2 years ago that destroyed one disk in the stack. So long as the accumulation of metal in the filter does not increase, I am ok with it. Unfortunately cleaning the residual out would require engine disassembly since AL is not magnetic I cannot use a magnet to get it out of the case. The flakes are large enoug to be stopped by the stainer anyhow so no worry of damage from it.
As for the slime or foam in the oil. A blocked crankcase breather will allow the oil to foam since the air cannot be discharged through the breather. Check for excessive crankcase pressure as an indication of this. It will also cause seal damage if left unchecked.
also continuous riding short distances in cold weather will cause condensation build up in the crankcase leading to WATER (not coolant) in the oil. This will turn the oil slimy and milky. Ensure the engine has a chance to get HOT and remember oil heats up much slower than the coolant.