I hate to admit this, but I bought three of the evolution engines: a .40, a .61, and a 1.00. All did the same thing and i could not get any of them to run reliably, no matter what I did. Even the club pro was scratching his head over this (these engines). I even was ready to get an OS carb to see if that would fix it. But the carb was almost half of what a new OS would cost so I opted for a new OS. That ended my problems. Solution: get rid of the Evo's and get an OS or Super Tigre, or Magnum.. whatever... but get rid of the Evo.

DS.