The TROUBLESHOOTING GUIDE (961-0002) is a complete reference manual containing troubleshooting suggestions and reference data for most outboard ignitions, including Mercury, Tohatsu/Nissan, Johnson/Evinrude, Force, Chrysler, and Yamaha 2-stroke plus some 4-stroke. Product-specific diagnostic information and complete test instructions are available for many older ignition systems. Many current ignition systems have a theory of operations. DVA measurement charts for most outboard ignitions. It is defined, including recommended Shop tools, testing with minimal equipment, voltage drop measurement, and diagnosing battery charging issues, among other topics. Key Features: CDI Electronics Practical Outboard Ignition Troubleshooting Guide 7th edition guide A booklet with a practical outboard troubleshooting guide A spectacular marine resource Covers 2-stroke and 4-stroke models from Mercury, Mercury/Force, Chrysler/Force, Johnson/Evinrude, Mariner, Tohatsu/Nissan, and Yamaha. DVA Explained, Shop Tool Recommendations, Testing with Minimal Equipment, and Voltage Drop Measurement are all included. Specifications: SKU: 961-0002 Weight: 0.50 LBS UPC: 9780982535912 Brand: CDI Electronics Condition: New