sorry! the one we flew last nite has the magneto. It flew great. He purchased a brand new carb & b&b muffler. It ran sweet. Mine actually had a magneto at first & flew well as I recall but I had my electronic igniton ordered to make it lighter. Had an incident broke the prop so I waited till I got the ignition installed before flying again. thats when I started having problems. I cant think of any reason the ignition would perform differently in the air...but its my first gas engine.