Four-Stroke Motocross and Off-Road Performance Handbook

This 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