These engines are precision blueprinted to strict tolerances for alignment and component fit to achieve maximum performance.
Yamaha Heavy/Light - Junior 1 - Super Sportsman
Ten years of testing and race results have proven the SRS cylinder position and head configuration for these classes to be the winning combination for tracks across the country. These engines are especially sensitive to ring seal and friction drag. SRS has perfected techniques and setups to address these issues to let the power flow to the rear wheels.
Call 903-769-4140 for details and prcing.