First of all,thank you for your reply.I found some of the things you mentioned to replace,but can you send me pics or explain what are these: "clutch housing o-ring", "engine bearing and seal kit" ? I think that I found the other parts you mentioned.
Well the problem is that I don't want to open the whole engine.I think that I might get remove only the rear tire and change that rear hub seal (because I think that is easy to replace), and I hope that there won't be no need to open the inside of the engine to replace those other seals.And as I mentioned before I can't dismantle my LML just to check what size is the rear hub seal,since I live in a building and I can't leave the Vespa outside like that.So that is why I'm asking the correct sizes of the seals and o-rings so when I order them I open the engine and put them right away.And I can't return the parts if they don't match,because I have to order them from another country and that is expensive to do from Macedonia.
And you mentioned the exhaust as possible place that oil lekas from.Well when I resurfaced cylinder head i tightened the exhaust,but it is still a little bit loose I think.It can not be tightened more.I did that all the way to the max,it can't be tightened any more.
Someone on Modern Vespa also made the point about your clutch release arm and they are correct, I have never seen one like that before and it is possible that
You are not the first one that says you have never seen before that kind of clutch release arm.I don't know why.Well my LML NV 150cc is from 1991.It was imported to Yugoslavia from India I guess when PIAGGIO and LML still had joined venture.So I guess that is the first version of LML NV.There are stamps of PIAGGIO and LML on the engine.That is why probably why I can't find some parts to match.The electrical wiring is different then on VESPA PX.I have no idea ........
From the first picture it looks like a leak from your cylinder base or head gasket and around the exhaust flange( maybe just needs tightening ) as this is usually a black slightly thicker oil made up of residue of burnt 2 stroke oil.
About this,I use ELF 2 stroke oil which is dark (blue/green)color,so that's why the oil that is leaking is dark and not because it is burned (I have no idea,just to mention the fact so that you better know).
I will check first if I can find these seals in Macedonia,if not I will try to get them from Greece or order them from Germany.I ordered my other parts from SCOOTER-CENTER from Germany.They are great,so check them out.
FROG ( Sydney Australia with a huge Macedonian community
I know that there are a lot of Macedonians.So say hello to them,from me
Thanks again Frog