hello everyone... so ive got an evolution .46NT engine on my plane, still a beginner, on my 3rd plane...destroyed the other 2 with this engine on them. haha yeah but the engine still runs pretty good! ive taken it apart for cleaning, but only the basic parts such as the carb, high speed vavle, muffler. i cleaned inside where the carb was and inside the cylinder through the hole where the muffler goes. so i dont THINK i couldve screwed anything up that way. im prob wrong but anyway. ive had this engine on my new plane for about 5 flights that went perfectly fine except for the glo plug goin out on me. i put a new one in and flew a couple more flights. today i go out to fly and after starting the engine i go to take off and engine cuts and my plug is bad again. so i start it again and let it idle with the glo stick on it....BUT THIS TIME, THE PLANE STARTS GOING BACKWARDS! being a newbie i didnt even know this was possible. so i start it again but this time i flipped the prop the opposite way to start and it pulls forward again. just to make sure i went backwards and forward and sure enough the plane was pushing back or pulling forward depending on which way i threw the prop. SOOOO.......
can someone tell me how, why this is happening and if there is anything i can do to fix this. also is it dangerous to fly at this point, assuming of course i started the prop clockwise to make it rotate counterclickwise...pulling normal. HELP!!! IM BROKE AND CANT AFFORD A NEW ENGINE!!!! K THANKS