Air / Fuel Ratios        

Whether your bike runs carburettors or fuel injection, a good tune saves you money on fuel, it extends the life of your engine, and gives you more power. It's all win-win.
This guide tells you how carbs and efi work, how to diagnose what's wrong or how to improve it, and tells you how much you can expect to pay for it.
Courtesy of Transmoto Magazine.