Rick's Motorsport Electrics offers a Brand New Aftermarket Rectifier-Regulator for your Vintage Kawasaki 1979-1981 XS400/XJ400 and 1982 XS400SJ Heritage with OE# 1L9-81970-60-00 & 2L0-81910-50-00. This part is designed with a lower voltage set point to work with lithium ion batteries...