VINTAGE YAMAHA RACING MODS &TIPS

A bound REPRINT of an original Yamaha Racing Tips performance guide, produced by Yamaha for owners to modify their bikes for more performance. 

• Note that this is a Performance Guide; there is no repair or maintenance information
• Includes porting specs, expansion chamber dimensions, carb and jetting specs and other suggested mods
• Completely illustrated
• Includes information on head modifications, piston mods, porting changes, rotary valves, building an expansion chamber, plug selection, carb tuning and other performance modifications tested and recommended by Yamaha
• Much of the tuning tips can be applied to almost any Yamaha of the 70s era
• Covers a wide range of Yamaha models from the early 70s: JT-1/2, LT2, AT2, CT2, DT2, RT2 (all dirt models, enduro or motocross), LS2 street, TA125 road racer, DS7 street, TD3, TR3 roadracer
• 100+ pages
• A wealth of tuning advice at a bargain price
• Professionally printed and bound with clear covers
• FREE USA shipping