Well...i thought I was done building...but gollllyy...im at the swap meet I see a Honda engine sittin under a table, missing the carb, I turn it around, whoo GX100 ohc..cam not ohv. "hey how much"...10 bucks!!! I found a nail, put it in the plug wire, held on, pulled the cord...spark!! Brought her home, put my NT on, some gas, and varooom...sooo, gonna swap out the G100. The exhaust is huge..the round tube above it is for comparison.