Welcome to a little insight of how to get about 35 #twostroke HP from a 1960s JAWA 250, resulting in a top speed performance of almost 150 kmph.

Feel free to have a look into Part 2 video showing further details on the way into the skies:    • JAWA 2-stroke power tuning (part 2) c...  

And how does it feel to ride this bullet? Just hop on for a minute:    • JAWA 559R | 350 cc 2-stroke single - ...  

The entire “making-of” in writing can be found here: https://forum.jawafreunde.de/forum/in...