Modern Vespa

I installed a cosa 2 clutch in a Vespa T5 but I was getting clutch drag and sometimes hard to get in 3rd. I adjusted the cable but it's no good. Do I put a 0.8mm spacer behind the clutch on top of the thick spacer standard washer.

Most likely an issue inside the clutch itself.

Did you fix the oil sucking issue already?

Were you asking about the brass bushing too?

yes I got an answer on another group about the bush washer turning. I removed the post because I felt abit silly asking because I know it shouldn't on the old clutch. I'm removing the clutch today or tomorrow to replace the bush. I might put the old clutch back in yet. As for the oil sucker probably I'm updating that post shortly. I replaced the main engine gasket but I haven't been out on it yet because it was smoking a bit when it was ticking over so I was thinking main sear but after reading into it when the main sear gos you get fuel in the gear oil. There wasn't no fuel in the oil just lack of oil so it just need a good run. I will after i repair and get the clutch set right or put the old clutch back in.

The only way to know is to pressure test it. Whether fuel in the oil or not, doesn't matter. If it is sucking oil, then every single time you start it, the crank, cylinder and piston are getting more damaged.
Before you start it again, you have to know if it's leaking.
Pressure test question

Ok I need to get a pressure testing kit. I will have a look around

I will do a new post about buying and making a pressure testing kits.