RE: NEW DLE 20cc Gasser! (Data & Links 1st Post)
Armody, If the 2nd half of travel of the carb throttle arm doesn't give any significant rpm increase, WHY USE IT? Set servo (full throw) to operate just the 1st half of carb throttle. I believe it's Hobby King that has the RcExl ignition for around $30, which for you may make all the difference in setting up the idle. By all means use a cheaper prop until your satisfied with the running of your engine. Hope you stik with the DLE as I believe it to be a better engine.
T-man49