Originally Posted by itsatdm
If this question is referring to the change Husqvarna made to this engine, I posted. They changed the crank throws, so instead of 1 power stroke every 360 degrees of crank rotation, the power stroke occurs at 315 and 405 degrees. I hope your answer is in there somewhere.
Not to hijack but I can understand the 360 degree crank choice in engine design -- the firing cycle is even -- for a vertical twin that would seem the smoothest choice. Why would Triumph use a 270 degree for the Scrambler (The Bonnie is 360) or Husky use 315,405?