I decided to go out and cut some with the 4-10. I made 2 cuts and realized I forgot my tuning screw driver in the garage. Walked back to the garage with the saw running in my hand, grabbed the screwdriver and headed back to the log pile. The saw died on the way to the log pile and i couldn't get it to restart. Back at the garage, spark would jump a spark plug but not my spark tester unless I spun the motor quite fast with my drill. I figured the chip died (have heard all the warnings) but wanted to try it anyway. So I cleaned up the original points and put them back I and gapped them. Had great spark. Put it back together and it fired right up. Great!! Had to go in for dinner, came out after dinner, saw fired but would die when I tried to rev it. Checked spark again and it is inconsistent unless I spin the motor fast with a drill. What am I missing here? Is this a coil issue? I've always had coils either fail or not.
Also, is this fuel cap repairable?
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