Outboard engines have got better than ever in the past decade: more reliable, more economical to run and more environmentally friendly. They've also become more complex, so keeping these high tech wonders running smoothly requires a solid understanding of how they work and of proper repair and maintenance techniques. This new edition covers the new 4-stroke engines, conventional electronic and direct fuel-injection systems, the new clean 2-strokes, and multiple engine installations. There are easy-to-follow directions for troubleshooting problems in every engine system, and step-by-step procedures for reliable repairs and maintenance. Every major engine brand on the market from 2 to 300 horsepower is covered. This book is ideal for owners and operators of motorboats, working boats, ribs and patrol boats, and enables the reader to save both time and money by doing their own engine maintenance, repairing minor problems and diagnosing those which need expert help. 'This book just may get you through the weekend.' - Boating