Why do you suppose carburetors are so hard to adjust? Even a simple jet change requires major disassembly. It's my hunch they're made this way just so the average idiot can't screw them up. But ...

Testing carburetors on an engine dyno can sometimes be misleading. We've all seen tests showing large-cfm carburetors making more power—even on a small engine that nobody in their right mind would run ...