I work on the engine trying to get it started without taking anything apart off and on for about 3 days I did not take the carburetor apart to check anything I would think the company would rather do that themselves. I do have the prop set at 1 o clock when I drilled the holes in the prop, I am running a 6.6 volt life 4000 milliamp battery for the ignition I was told by Mile High RC that 6.6 volts would be okay although the manual did say 7.4 - 8.4 volts suggested. I only run 6.6 volt life batteries.the ignition is a new style that I never saw before it is plastic But when it does start it runs very good. For that reason I would think the ignition would be okay. and I was told by mile high RC that 6.6 volt would be fine. Maybe I have to go out and get a 7.4 2 cell.battery I never liked using lipo batteries. I did not want to go out and buy one of those big electric starters just for one engine because all of my other engines are able to start by hand. I will work on it a little bit more trying to get it started if that does not work I will just put it up for sale cut my losses. This time I will buy a good engine from companies that will stand behind what they sell.