My first motorcycle was a low budget JAWA 634/5 (Spring 1976).
Summer 2012 after a holiday in the Czech Republic I was contaminated with the Jawa Virus.
Back in the Netherlands I bought for only € 600,= a fully functioning 1996 Jawa 639.
Quite a sensation to feel the completely different drive and push of this non-desmo and non 4-stroke engine.