RE: Evolution engine
Yet most people move (or remove) the limiters (even you and me)
My first Evolution experience was that the limiters obviously were not set correctly. I had to look a little to see how to defeat the "factory settings". I tried to leave them set to where the engine would function correctly for the newbie.
Methanol based fuel is very sensitive to mixture. That's the reason they have adjustable needle valves instead of fixed orifices.
Only the Trainer System engine should have the limiters. The others don't need them.
Jim