From electronic ignition to electronic fuel injection, slipper clutches to traction control, today's motorcycles are made up of much more than an engine, frame, and two wheels. And, just as the bikes themselves have changed, so have the tools with which we tune them. How to Tune and Modify Motorcycle Engine Management Systems addresses all of a modern motorcycle's engine control systems and tells you how to get the most out of today's bikes. Topics covered include: how fuel injection works, aftermarket fuel injection systems, open-loop and closed-loop EFI systems, fuel injection products and services, tuning and troubleshooting, getting more power from your motorcycle engine, diagnostic tools, electronic throttle control (ETC), knock control systems, modern fuels, and interactive computer-controlled exhaust systems.