Nobody? There must be someone here with that part lying around
I would buy it online but I cant seem to find it as single piece.
I don't have spare parts for you, and the pics from the first link seem to be missing so I am not really sure exactly what you need. That said, on the clutch side the small gear is called the "Small Bevel Wheel" (or gear), the big gear is the "Big Bevel Wheel" (or gear). Both GasBike.net and BikeBerry.com seem to have the parts available.
The Small Bevel Wheel is found in the CRANKCASE section, along with the screw that holds it in place, which is called the "Round Column Bolt" and "Round Spring Gasket", and the "Gear Case Cover" that goes over them.
The rest of the parts are found in the CLUTCH section. One thing I like about the BikeBerry site is when you click on a parts category it shows you an exploded diagram of the parts at the top of the page, nice to have that reference right there to view....
I'm pretty sure most any part in one of these motors is available to buy, if I am confused about what you need and you still can't find the parts post back an I will try to help you find 'em....