1981 Dirt Bike Magazine presents Hi-Performance Secrets

Cover: High performance rider Rex Staten blows up a berm on the equally high-performance Suzuki RM465. If you want to know how to tune your carb, zoot your suspension, or take good care of your cylinder, we'll show how the pros do it. Contents: Rex's Barrel - the history of high performance; High-Performance Buyer's Guide; Go-Fast Formulations; Race-Prepping Honda's CR250-R; Basic Cylinder Secrets; Friction-Reduction Secrets; Maximum Suspension Tuning; Gearing up for battle; Flow Benching the Yamaha YZ250-H; Boost Bottles or Bust Bottles - magic or myth?; Carb Tips and Tuning; Make your mini move; Clutch and gearbox failures and fixes; Bulletproof Wheel Building; High-Performance Directory; more 1981 November Hi-Performance / Dirt Bike Motorcycle Magazine Back-Issue available at www.DadsVintageAds.com CLICK THE PICTURE TO "BUY IT NOW"