DIVThis thorough how-to manual helps the off-road motorcycle enthusiast get the most out of their machine. This one-stop reference covers everything from basic maintenance to performance modifications, including: • Engine rebuilding• Transmission rebuilding• Clutch repair and rebuilding• Big-bore kits• Cam kits and valve timing and tuning• Tuning stock suspension• Suspension revalving and kits• Jetting and tuning carburetors• Tuning electronic fuel injection• Wheels, tires, and brakes• Chains and sprockets• Cooling systems • Electrical systems/div

The Honda high-performance four-stroke motorcycle is one of the most popular off-road motorcycles in the country. In this book, widely known and highly respected tuner and journalist Eric Gorr, Dirt Rider's Dr. Dirt and owner of Forward Motion, takes off-road enthusiasts through the paces of performance projects for their Honda CRFs. Whether it's a CRF450F, CRF250F, CRF450X, or CRF250X, your high-performance four-stroke Honda comes under Gorr's purview as he details the ins and outs of buying, maintaining, and upgrading the CRF-and doing the best off-road bike one better.

How to maintain, modify and set-up every component and correct common flaws.

The suspension expert’s illustrated, comprehensive troubleshooting guide for dirt, street, and supermoto—with a solution to virtually any problem. Suspension is probably the most misunderstood aspect of motorcycle performance. This book, by America’s premier suspension specialist, makes the art and science of suspension tuning accessible to professional and backyard motorcycle mechanics alike. Based on Paul Thede’s wildly popular Race Tech Suspension Seminars, this step-by-step guide shows anyone how to make their bike, or their kid’s, handle like a pro’s. Thede gives a clear account of the three forces of suspension that you must understand to make accurate assessments of your suspension’s condition. He outlines testing procedures that will help you gauge how well you’re improving your suspension, along with your riding. And, if you’re inclined to perfect your bike’s handling, he even explains the black art of chassis geometry. Finally, step-by-step photos of suspension disassembly and assembly help you rebuild your forks and shocks for optimum performance.

“To appoint yourself project leader on your own bike is exciting,” says Cycle World columnist and performance guru Kevin Cameron, “but then you need a plan that you can actually carry through.” For a decade, Cameron’s bestselling Sportbike Performance Handbook has been helping readers and riders make those plans and put them into motion--building better, faster, more powerful bikes. This new edition does everything the first did, and more, bringing bikers up to date on the dramatic changes that have swept sportbike technology in the past ten years. Cameron goes deep inside the world of performance, offering usable insights into how systems work as well as how modifications and aftermarket trickery translate into more power and better handling on the street or at the track. Component by component, he describes the secrets of speed in minute detail, all with added color photographs and new diagrams. This edition covers changes to fuel management, suspension, tire technology, brake systems and more. It is the essential tool for anyone looking to coax maximum performance from a sportbike.

In the old days all a person needed to build a killer custom motorcycle was a bike, a set of tools, a little know-how, and a creative vision. But with the rise of the high-dollar, haute moteur Gucci choppers, the true custom bike has gotten out of most riders’ reach, right? Dead wrong. In this book Jose de Miguel, a custom builder from way back, sets out to prove that those good old days never ended. In the clearest and simplest terms, he shows readers how they can turn odds and ends found around the shop into one-off motorcycle parts--and make a cheap, run-of-the mill custom build into a drop-dead show stopper. Following de Miguel’s lead, along with his straightforward illustrations, any resourceful owner with rudimentary mechanical skills, a basic tool kit, and--most importantly--a modicum of imagination can build the bobber of his dreams for less than the price of a new bike.

This essential guide from the experts at Dirt Rider magazine covers everything from riding and repair basics to motocross tricks and flips. Affordable and easy to ride, dirt bikes are a great way to enjoy the great outdoors and build riding skills. Whether you just want to enjoy a ride through the backcountry or you’re gunning for motocross stardom, this book is full of hand-on tips and tricks to get you there. The Total Dirt Rider Manual covers: Gear: Learn how to buy the right bike for you, whether you’re looking at new models or used rides; suit up for style safety, and comfort; and adapt your gear to a wide range of riding conditions. Riding: Get all the information you need to enjoy a casual day on the trails or to compete year-round. Wrenching: The best of Dirt Rider magazine’s “Dr. Dirt” feature, providing step-by-step tutorials for repairs of all kinds. Suspension: A bike’s suspension is vital, expensive to fix, and tricky to diagnose. This special section offers clear, practical tips from America’s top race-bike mechanics that could save you thousands of dollars.

For gearheads who want to build or modify popular LS engines, How to Build and Modify GM LS-Series Engines provides the most detailed and extensive instructions ever offered for those modding LS engines through the Gen IV models. The LS1 engine shook the performance world when introduced in the 1997 Corvette. Today the LS9 version far eclipses even the mightiest big-blocks from the muscle car era, and it does so while meeting modern emissions requirements and delivering respectable fuel economy. Premier LS engine technician Joseph Potak addresses every question that might come up: Block selection and modifications Crankshaft and piston assemblies Cylinder heads, camshafts, and valvetrain Intake manifolds and fuel system Header selection Setting up ring and bearing clearances for specific uses Potak also guides readers through forced induction and nitrous oxide applications. In addition, the book is fully illustrated with color photography and detailed captions to further guide readers through the mods described, from initial steps to final assembly. Whatever the reader’s performance goals,How to Build and Modify GM LS-Series Engines will guide readers through the necessary modifications and how to make them. It’s the ultimate resource for building the ultimate LS-series engine! The Motorbooks Workshop series covers topics that engage and interest car and motorcycle enthusiasts. Written by subject-matter experts and illustrated with step-by-step and how-it’s-done reference images, Motorbooks Workshop is the ultimate resource for how-to know-how.

Professional Sheet Metal Fabrication is the number-one resource for sheet metal workers old and new. Join veteran metalworker Ed Barr as he walks you through the ins and outs of planning a sheet metal project, acquiring the necessary tools and resources, doing the work, and adding the perfect finishing touches for a seamless final product. From his workshop at McPherson College-home of the only accredited four-year degree in automotive restoration technology-Barr not only demonstrates how the latest tools and products work, but also explains why sheet metal reacts the way it does to a wide variety of processes. He includes clear directions for shaping metal using hand tools, the English Wheel, the pneumatic planishing hammer, and other machines, and discusses a variety of ways to cut and join metal through welding, soldering, brazing, and riveting. Dent repair and automotive patch panel fabrication are covered in detail. Readers are also given tips on copying shapes and building foam, wire, and wood station bucks to use as guides during shaping. This is truly the most detailed enthusiast-focused sheet metal how-to book on the market. Whether you're a metal hobbyist or experienced professional, you're sure to find something new in Professional Sheet Metal Fabrication.