Battery condition is extremely important. No voltage regulator can work correctly with a bad or weak battery. Always fully charge your battery before performing any charging system tests or replacing parts. If there is any doubt, have the battery load tested or replaced.
Aftermarket replacement part for:
Honda TRX 420 Rancher FA -- 2009-2014
Honda TRX 420 Rancher FE -- 2007-2013
Honda TRX 420 Rancher FM -- 2007-2013
Honda TRX 420 Rancher FPA -- 2009-2014
Honda TRX 420 Rancher FPE -- 2009-2013
Honda TRX 420 Rancher FPM -- 2009-2013
Honda TRX 420 Rancher TE -- 2007-2013
Honda TRX 420 Rancher TM -- 2007-2013