Any 2 stroke fan around the world would have heard of and know something about the history of RD 350. This is because from a period of more than 10 years RDs were sold in different forms.
Some of the early RDs were air-cooled models that were available from 1973 onwards. The early RDs were such a hit that the company produced many models and eventually the RDs became Liquid cooled machines capable of ridiculously high speeds. The Liquid Cooled models were called ‘elsie’
These Elsies were such a rage in the early 80s that, there were entire girds of upto 40 bikes in the production series. The bikes were easy to work on and maintain and were a cheap source of total entertainment.
There are many sites devoted to these bikes some of them coming to mind immediately being, http://www.aircooled-rd.com and http://www.yamaha-rd.com.
A search around the web using search engines and directories like google and yahoo for terms such as RD350 or RD350YPVS will give you loads of information.
Since this site primarily aims at the RDs built and sold in India, I do not see a point in putting up too much information about the RDs around the globe. In case you need any help or information, kindly mail in and I will try to help you as much as I can. Thanks!