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

This book includes: - Four-stroke engine rebuilding and tuning - Suspension setup and tuning - Carburettor jetting - Setup tips for late-model motocross and off-road bikes [From cover].

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.

The fast-growing sport of off-road racing attracts legions of enthusiasts--the AMA estimates nearly one million participants in 2003--who spend much of their free time riding and modifying their motorcycles. This how-to manual offers those riders all they need to know to modify their bike in order to make it work the best for their particular riding conditions. The book covers everything from basic maintenance through to performance modifications, and is authored by one of the most respected performance gurus in the business.

An author subject index to selected general interest periodicals of reference value in libraries.