Hello.
Excuse that I write in english. I\'m from Russia, Stavropol sity and German did not study therefore difficultly to be guided on German sites.
I the fan of motorcycles specially Czechoslovak bikes (There are CZ 350 472.5, JAWA 634/04 and JAWA 638.00 in my garage) 
I have two mopeds \"Simson\" S51 type with 4 speeds motors, one of them is Enduro and one is \"Classic\" style.
This mopeds is very very good machines !!! But the time does not cost on a place and the engine gradually wears out also it is necessary \"to touch\" 
So I have the LARGE PROBLEMS with search and buy new original repairs (spare parts) in the motor !!!!
Could you give me useful links on electronic shops in the Internet which would help to decide these problems. It would be wonderful if the details will send by post:)
Beforehand thank!!!
I shall be very glad to talk to the owners these mopeds on Russian !!!!!