RE: Problem with Zenoah 26 clone
Your description of what you did tells the story. By setting the carb to run good on the bench, you made it so it won't run on the water. As Dockman said, richen up the LSN and throw it on the water. If it runs at low speed, start tweeking the HSN. Setting a carb is a balancing act, each time you make a change, something else changes. Write down every change you make and the results. That way, if you need to ask for help, you can tell us what you did and the results.