Looks like Stihl have been having a play.
must just be the machines we have had, struggled with there chainsaws, disk cutters, strimmers, hedge cutters and hole borers..Stihl stuff is easy to start. Why do you say that?
There's definitely a way that works.
From cold
Choke on, throttle hold on
Keep pulling until it fires once and dies.
Choke off
Pull until it starts
Throttle to full revs for 15-20 seconds, in blips if need be.
The oil mix MUST be spot on with new petrol from a sealed can. Petrol starts to go off after a couple of months in an unsealed tank so it's best to run dry or empty fuel out if the tool is being stored.
I think you're right that it's a small chain working hard, as far as I know the chains for an electric or petrol would be the same material. The strimmers with a bent shaft don't last as long, it's basically a length of steel wire constantly flexing, a straight shaft with bevel gears is usually a lot more durable.do the petrol chains have harder teeth?