This manual enabled me to trouble shoot and repair several electrical and engine problems in a newly acquired (used) motorcycle, having no mechanical experience whatsoever. Well-written with clear diagrams and good photographs. I was able to locate the short that was draining my battery, rewire the offending circuit, and change out the burned stator coil to make the motorcycle fully functional. Fabulous. Always nice when explanations are provided instead of a cryptic "see your dealer"... Includes a section on useful tools and service intervals for various procedures. Well thought out manual.