A freind of mine has a saw shop where he specialises in forestry equipment, over the years he has come across two or three instances where the big Husky's have seized whilst they are milling really big logs.
The cause was, the exhaust was pointing in such a direction that the exhaust fumes were being injested back through the engine, causing mixture problems, the saw were set up correctly, mix, mixture etc.
On hearing this I did some experiments, I borowed a 3120 to see what I could find, and did the normal spark plug tests on both a 3120 and 088, you know the visual colour test on the spark plug thing, engine temp etc.
What I found was, the 3120 when laying on its side ran a tad leaner than it did upright,this was down to the carb design, an older spec,
quote: (now I'm not saying the 3120 is a bad saw) unquote:, it has stood the test of time very well, but the big Stihl definately has the edge when it comes to milling,
the big Stihl has had many more updates than any other big pro saw and really shines whilst milling, and the build quality is definately a lot better.
The technology surrounding the 3120 arks back to the seventies with saws like the 090, Husky has recently started to revamp their bigger saws, if you look at the new XP series, you will see that their clutches are now enclosed and its a pitty that husky have not yet updated their 3120, I feel it is being left behind by other saws, it is living on its name but for how long.
I'm not alone in my estimation, there are many more big Stihl's being used than the larger Huskies, this has got to mean something and the cheaper prices must reflect in one way or another.
My 2 penneth worth.