I finally had ten minutes to look at the non-running 111 that I had bought.
The PO said the starter mechanism had failed and it needed new parts. It's the 86 model with the plastic spin-out ratchet that grabs teeth on the flywheel. The black plastic toothed unit spins out off an opaque plastic piece that the starter handle pulls on. The PO had a new black piece, but the existing one is fine, just jammed on the opaque piece due to burs on the opaque piece caused by the two pieces slipping across each other. After a bit of investigation it was clear that they had slipped because one of the screws holding the pull starter in place was missing, so the distance between pull starter and flywheel was too large, allowing the two plastic pieces to jump off each other.
The missing screw was inside the saw under the flywheel, and fell out when I turned it over, so I removed the burrs and refitted the missing screw, and the starter works fine. However, this then showed that the throttle was not functioning. I have two versions of the 111 IPL, and neither matches my machine, so if someone has the correct one for the 86, that would be really appreciated.
Anyway, the wire throttle rod doesn't slot into the trigger, but is pushed by the trigger. The throttle rod is supposed to have a plastic end that the trigger bears on, and also guides the rod through the top cover, but this plastic was missing. I made a new one from HDPE and a couple of stainless self-tappers, and took the opportunity to clean the carb while it was off. This carb had both L and H 1.25 turns out, so I left it like that. It also only has a single fuel line onto it, so how does it pump the fuel? I'd appreciate a description of this mechanism, as it isn't obvious to me just from looking.
Sorry this has got a bit wordy. To cut a long story short, I put some fuel in, choke on, fired second pull. Choke off, fired first pull, and not a hard pull, just turn it over and off it goes. I did a couple of test cuts in hawthorn, but the chain needs a tickle. However, it ticks over nicely, and pulls real hard. Lubes the chain too.
First impressions are wow! I don't think I need to fiddle with the tune at all, and the easy starting relative to the 105 is impressive - like the 153. I'll try to do some video/photo's if I can get some time this weekend.
On another note, I've bought a 36" bar, ripping chain, and a mill for the 153. Cost me more than I've spent on all the other saws put together, so my wife is less than impressed, but it should save plenty if I can clad the workshop in "free" planks.