Remote DVA Peak Reading Tester Harness

Designed for use with 1978-2000 Mercury engines with separate packs and ignition coils, Johnson/Evinrude 1973-2006 and Yamaha engines. When connected to the ignition coils, the 15 foot harness allows you to connect a DVA Adapter/Meter to the coils and switch cylinders while the engine is cranking, idling or running at wide open throttle. Can also be used to check trigger and stator voltages on some engines.