I went through the 3816 this a.m.& found that it has no spark even after disconnecting the switch wire & trying a new plug.I'd have to say the ignition module is bad.Isn't that kinda odd for a brand new saw?The saw has been sitting for a number of yrs.
Then my SIL came by with a 4620 from hell.Apparently it'd fallen off a truck or been dropped out of a tree & then was left on the side of the road for dead in it's carrying case.My SIL likes to pick up all kinds of junk on the roadside.Anyway,he brought the saw over to have me "look at it".It's missing screws that hold the AV springs in place,so the handle wobbles all over,the fuel line in the tank is disintegrated,the chain brake has the tensioner popping through,it leaks bar oil all over the carry case.On a good note,it fired on a prime & has a good recoil & bar & chain.I pretty much told him the saw wasn't worth fixing,but he's pretty adamant for me to fix it.Of course my labor is worth nothing.Surprisingly,I looked on eBay & found chain brakes for it all over the place for under $25.The thing that concerns me the most is the possibility that the oil tank is cracked.