GY6 125cc 150cc 152QMI 157QMJ Chinese scooters, dirt bikes, and ATVs. Honda CR80R/125R/250R/450R/480R/500R, XL80/100/100S/170, XR100/100R, XR50/CRF50 2000-2004, FL250, ATC70/110 (CDI ONLY), ATC185/ 250R, TRX250R 1986-1989, TRX90 1993-2000, TRX70/125 & EARLY 50cc.