Originally Posted by Knight511
And that is what made me think it could be electrical.
let me throw my two cents in here. I don't think your problem is electrical...but I did have a Shindawa that had bad wires coming from the throttle back to the engine. One of them was cracked, and every time you applied power, the trimmer would vibrate a little which caused the wire to rub against the side of the engine and ground out....
I think you have an air leak some where. When you had the carb off, did you take the insulator off and clean the pulse port hole ? It runs through the insulator, in to the cylinder. I use a piece of a coat hanger to clean them out. Also, if you take the insulator off, make sure that the end that goes up against the cylinder is flat/square. I have seen them warp. Also, check to see if the bolts/nuts that hold the cylinder on are tight and there is no liquid/dampness (oily) any where around that base. Lastly, the seals, if you have any dampness (oily) behind the recoil starter or the fly wheel, those seals should be replaced....