Extra parts?

[kevino]

I guess the plastic bag that came with the cylinder kit isn't needed as long as the new piston is the same height as the old one.   The new parts are for enlargements that widen AND elongate the combustion changer???  That's my guess, anyway.   The kit came with two circlips in a second envelope.  Those I used securing the piston pin to the connecting rad.   I've adjusted the valve lash to .006 for the intake and .008 for the exhaust.  

[kevino]

So I found the two large posts are the same length as the original posts that mount the body to the carb. And the two large nuts are the right size also. But the original motor did not have these two long nuts; They're so large I couldn't have forgotten them.

[aeroxbud]

The long nuts are for the exhaust.

[GrumpyUnk]

Is there a question about the parts...? Looks at a glance as the O-ring for the rocker cover, two sets of studs for the exhaust pipe, the exhaust copper O gasket, two metric nuts, and a pair of long nuts for the exhaust studs.
The long studs and the two plain old metric nuts are unfamiliar as far as scooter exhaust fittings, but the larger displacement ones may have deeper fittings on the down pipe.
tom

[kevino]

Is this important? My finger is on a hole in the tube. Does this hole prevent suction when the engine is cranking? From the Haynes manual the tube is coming from the fuel tap and is called a vacuum hose. And as I said there's a hole in the tube. So vacuum isn't happening. Is this as moronic as I mentioned earlier? Meaning if I replace the tube there will be vacuum and the engine will fire?

[kevino]

Is this important? My finger is on a hole in the tube. Does this hole prevent suction when the engine is cranking? From the Haynes manual the tube is coming from the fuel tap and is called a vacuum hose. And as I said there's a hole in the tube. So vacuum isn't happening. Is this as moronic as I mentioned earlier? Meaning if I replace the tube there will be vacuum and the engine will fire?

[GrumpyUnk]

The 'elbow' that connects the carburetor to the cylinder head intake port should be sealed. No openings to atmosphere. There may be one or two vacuum line ports that stick out so a rubber tube can be slipped over, and they are SEALED when the tubes are in place. On most, one goes to a vacuum-operated petcock that turns off the fuel supply when the engine is not running. That is a safety to prevent the fuel tank from draining its contents all over the floor should the float valve stick or leak.
At the other end of the elbow, away from the carb, there is an O-ring embedded into the elbow. It is to seal the elbow to the flat surface of the cylinder head. If it is hardened in a flat condition(age/heat/etc) it may not seal well. Sometimes you can put a smear of gasket stuff - RTV - on the surface to insure the elbow seals well to the cylinder head, or you can get a new O-ring gasket. Or new elbow.
All ports(holes/tubes/?) that poke into the side walls of the elbw(or elsewhere) should be sealed or connected to something that ends up sealing. The petcock vacuum does not let any air into the elbow unless the diaphragm is ruptured/cut/sliced/etc, just the amount of air to move the diaphragm and open the fuel stop.
So, in short, the elbow openings must be sealed or 1)you will likely be unable to start and 2)the engine idle will be very unstable if you can get it to idle at all.
You can seal any ports with RTV if you let it set up before use. Or Bondo, or tape(not long lived) or a golf tee if you can get it to stay. IOW, plug the hole, and likely engine running will improve. Replacements are not expensive last time I looked.
tom

 I am not sure from the description if there is just a hole in the vacuum line or a hole in the intake elbow.  Most elbows have a molded tube as part of the elbow.  The tube is a port into the vacuum of the intake and is used as noted above to operate the petcock.  The operation depends upon having vacuum to the petcock.  If the rubber line is damaged, replace or shorten it. If the small tube projecting from the elbow is broken off, glue it back on or use the one on the other side if equipped and close the broken one.  But. You must have one functional tube to supply vacuum to the petcock or you will not have fuel flow.
tom