I’ve been having problems with the fuel systems in both of my chainsaws and while I have them serviced regularly every now and then one of them needs its carburetor cleaned.
Unfortunately both of my saws were in the shop when the big storm hit us so I borrowed a neighbor’s saw to do a bit of the cutting I had to do and then got my big saw back for the bulk of it.
When I picked up my saw the mechanic who fixed it asked me what kind of gas I used in it and I told him regular (87 octane) with the 40:1 mix gas:oil. He recommended that I try 89 octane, the mid grade of gas at most stations.
So, I dumped my 87 octane gas (and some old mix) into my truck and went to the station and filled the truck up with 89 octane and filled my gas cans up too. Anne filled her Jetta up with 89 octane too.
My report is that it makes a significant difference: the saws are running better and the truck and VW are running a lot better.
I’ve run nothing but regular through every car I’ve ever had except my first car which was a Triumph TR4A and it took premium. Today I stepped up to 89 octane and I feel better already.
Seriously, I’m concerned about my power tools working well and not needing carb work all the time and I may have found a piece of the reason they’ve been tough to start at times. A season or two will tell.