Knuckles
ArboristSite Operative
Here's some more info on a stock 362, FYI. I've had this about a month now and probably have about 15 hrs of use time on it. "Normal" use as I would consider it, except for the cold weather (10's-20's F) - felling, bucking, limbing hardwoods in the 3-24" dbh range (mostly in the 3-12" range).
I was cleaning it up and sharpening the chain tonight and decided to pull the spark plug to take a peek inside to see if I saw the running rich issue Brad first posted at the start of the thread. The piston had a couple tiny spots of deposits on the crown - nothing notable. I used regular Stihl orange bottle oil in the first 2 gallons of gas I made (prob 1.5 gals went into this saw) as it was all I could get at first. I switched to the Stihl HP Ultra after that for the next 1+gal of fuel (and from now on). No pics of the piston as I can't get a camera in there close enough to see anything. Carb is set pretty much right at factory settings. Haven't needed to tweak it so far.
Here's what the spark plug looks like too:
Just a bit more info on the saw, FWIW.
-Dave
Nice. If you're happy with the way it's running, I wouldn't mess with it. That's about as spot-on as your going to get with 2-stroke OPE.