My 350 developed an air leak a while back so I stuck it on the shelf and used my 372. I finally got around to tearing it down today and the bottom bolts had come loose after years of hard use. I got it stripped down and brought the tray of parts in the house to wash them up. My wife was preparing supper, so I waited for my turn at the kitchen sink. I heard “ok, it’s all yours now” and I got straight to cleaning parts. I got everything cleaned before supper was ready except the lower case. I can do that tomorrow. The piston looks great, the cylinder looks great, the crank looks great, everything should be ready to go back together once the case is clean. I ported this saw years ago when I first got it, and it’s a real thumper. It had been burned up by the previous owner. It keeps up with my 372 in wood up to 14-16”. I have not put this saw on a dyno, but it should be right around 5hp. It pulls HARD. I took some pictures for anyone who wants to see what the inside and porting looks like. These were taken before cleaning. The discoloration in the transfers is epoxy, and yes that’s a flat sided piston. I love these cylinders with removable side caps. They make it real easy to get in there and fine tune things. These little buggers are very restricted in stock form, and respond very well to porting and reshaping. The first thing I do is cut the ears off the piston. They block most of the flow to the transfers. There is a PILE of aluminum on the bench when I am done with one of these, and an empty tube of epoxy.
