Rex’s replacement CDi unit for the air-cooled Yamaha RD250 & RD400 1978/79 with factory CDi ignition.
Modern electronics that will refresh old, tired units that have degraded performance.
This version has bullet connectors. Bolt on and plug in, no set up, factory timing.
Replacement for 2R8-85540-51. ND part number 070000-038.
Check carefully which connectors are on your machine.