You pretty much hit it on the head. I bought the saw to remove a big elm in my front yard. I grew up in the 70's and owned several 2 stroke motorcycles. I just thought it would be cool to put an expansion chamber on a 2 stroke engine. The saw is very powerful out of the box for only 42cc. It worked ...

20 guage 304 stainless. http://i82.photobucket.com/albums/j273/tpuliz/layout.jpg http://i82.photobucket.com/albums/j273/tpuliz/cones08.jpg http://i82.photobucket.com/albums/j273/tpuliz/backpurge04.jpg http://i82.photobucket.com/albums/j273/tpuliz/sidepipe.jpg http://i82.photobucket.com/albums/j273/t...

Just picked up a s size bottle of helium. Am running a wye with oxy check valves, just like in Jody's video. Can anybody elaborate on how to set the regulators on each the argon and helium? Is a 50/50 mix the only possibilty? If I set the argon regulator higher than the helium regulator will the che...