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