Hello mates, I found this German 821. The carburetor seemed to be part of the whole section. I also included a symbol engraved on it (see where the scissors points at) any idea what that means? I'd like to unscrew the carburetor section so that I can clean it properly but it looks as it were welded. Could anyone clarify?. It's my 1st 821 and I don't want to make a mess. I just rubbed a piece of cloth on the tank's base , but numbers can't be seen so far.....we'll have to hold on The glass was made by an Argentinian maker. "RIGOSOL" these glass globes are rated from numbers 1 to 5. 1 is for 100cp and so on. Thanks