Try some of the things people are sating on your front lawn...just put up some restrains or get someone to stand infront of the tails so the horizontal stabs are against the back of their lags and try some of thses things ppl are saying! And if non of them work like what everyone is saying like I said try a smaller spinner! I have a OS 60 FP and I had a huge huge spinner on it before and my starter would barely get it started I think it only started the engine one I always had to use a chicken stick but now I got a smaller spinner and it works fine! Also maybe a ste you could do last before you try a new spinner is take off the nose of the spinner and just try using the starter to the bolt that holds on the prop all you have to do is take off the nose of the spinner and flip around the cup in the starter!