HI all fellow riders first time poster here. I have a question to ask Anyone that can help. I have a 2004 wr450f and put her away for the winter all good. Decided I should get her out today and give a once over ready for the better weather. Once I finally got her started I realised I had no lights working except the ignition led. I charged the battery but that was fine anyway. Now im definitely not an electrical guru. Could anybody shed some light my way as too what a rectifier, stator, lighting coil does As id like to understand how it all works I.e why lights only work with engine running etc. I must figure out my lighting issue as I wanna do abit off greenlaning. Many thanks for looking.