Meh
It's pretty wide.....and working saws are us....so I intend to keep the bottom ring.
I would love to move the pin though.
I bet you are right, and why I'll just epoxy one jug to test that theory.
I'm not planning on leaving the exhaust that low.....but 105° is as high as I "think" it really needs to go. But...to test its reaction to increased blowdown, I'll be doing 102° on one of them.
Yep....not a lot of meat above the port. Gotta remember the 661 though. 56mm bore. I take the exhaust way up on that saw. It loves blowdown.
Well.....I do.
They ain't playing around. Stihl has been doing their R&D.
Worse time for me to pick to do a thread fellas. I was up most of the night coughing. I'm not feeling so sporty today.