Dyna 4000 P/U Adapter,73-85,KAW,KZ900The Pro Series Crank Trigger consists of a blue anodized aluminum base plate with two injection molded pickup assemblies. It features improved noise margin, providing a stronger pickup signal with more distinct high and low voltage levels for improved triggering. It is pre wired for the Dyna 2000 and Dyna 4000 ignition. The Pro Series Crank Trigger is electrically isolated from the engine case, giving total immunity to electronic problems associated