Honda: CR80R/125R/250R/450R/480R/500R, XL80/100/100S/170, XR100/100R, XR50/CRF50 00-04, FL250, ATC70/110 (CDI ONLY), ATC185/250R, TRX250R 86-89, TRX90 93-00, TRX70/125 and early 50cc
Kawasaki: KD/KX/KDX80, KM100, KS100, KS125 and most two-stroke external flywheel models and earlier point-type ignitions
Suzuki Quad Racers: 125/160EK/250R, DR100/125/200, DS80, ALT185, 50-125cc Trail and Street models and most late model RMs
Yamaha: Most single-cylinder off-road, enduro, MX, YZ and Quads with external flywheels 1968 and later, BW80, RIVA50, PW50, RZ350, TT500, XT500, YFM80/100/200/225, YFS200, YFZ350, YSR50, YT125/175 and YZ400F, YZ450F
