If you have not tired a different CDI unit yet, i would tell you to just hold on and try the new one first before doing anything else. I don't trust any OHM readings after many years of trying to test ignition circuits. they always seem to lead one down a wrong path with the Honda 185 and 200 ATVs and others too. CDI units are the shi-s some can work one day test good and then the next day let you down.. the only items you need good to have spark on your ATC110 ATC125 ATC185 ATC200 TRX200 is a good / flywheel + key / exciter winding / trigger coil / cdi / cdi main ign. coil / good plug cap / good plug / good ground to the engine and frame / good kill switch / and good key switch /