Today I started my saw and used about 1/2 tank cutting grape vines down. I refueled and added chain oil and then saw wouldn't start. After many attempts I removed the spark plug and held the wire wile pulling start rope. Nothing. I stuck metal into the clip thinking there wasn't good contact and pulled start rope again. Still felt nothing. Dumbfounded a bit wondering how this could happen after stopping for fuel and oil. I haven't removed any other pieces of cover yet because of heat getting to me Oh, I gave a shot of starting fluid few times to confirm no spark and as expected nothing happened as far as it trying to start up.