Even operators that normally know how to operate these handheld 2 cycles will goof up especially with alcohol or drugs are involved. I see several pieces of 2 cycle equipment every year that die an early death due to this.
Most times the spark plug here will have aluminum transfer on it. Other times it takes pulling the muffler for a look see of the piston and cylinder.
In the last year two years I had a Stihl string trimmer that just repaired brought back the next day that was straight gassed. Owner lost over $100 in repairs and then the whole engine. The second one was just this pass Summer. It was Poulan chainsaw that I repaired, It left with a full tank of 2 cycle fuel mix in but came back a couple weeks with the greyed plug and straight gas.
With chainsaws I am very surprised there isn't more accidents that cost a limb or a life. No amount of safety features can over come those operators that are careless.
Cutting trees can be a very dangerous job even you're sober. It not something just anyone can do without training. Even experience cutters can have unexpected problems. My brother had been cutting trees for several years when a new saw (just un-boxed and put in operation) got jerk out his hands sorta of. Actually he still was holding the handles in his hands and saw was still running 20 feet away when a wind gust sent the tree in a direction other then the intended direction.
