Mine has had a magnum conversion, according to the previous owner. I was looking it over a couple of nights ago and noticed it has a BING carburetor. Seems that I read somewhere that the specials had the BING carb while the magnums may have had a Tillosten carb. I was wondering if the Venturi bore size was different between the two? May be I still have some power left on the table? I took the muffler apart and seen that someone had drilled holes in the internal baffle but no mods were done to the out muffler shell. I drilled a 1/4 hole in it and cut the lovers out. Haven't tried it out since.I have the Magnum version of that saw, 52mm piston. Seems to have a lot of power for an older saw.
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