Hi so i have vulcan harrier 125cc. Yesterday i replaced left handside switch which was broken and new fuse (i suspected something wrong with it but just find out fuse connector was badly connected), everything worked fine yesterday , today morning i get onto bike key in none of electricity is working no lights no starter no brakes absolutly rubish spend all day to try find out whats wrong with him and just give up on night as no light outside anymore. Electrics just gone with no reason fuse fine battery is ok bike starts from kickstart running fine but no any lights no brakes signal or headlights. by the way for month or so starter wont work anyway it was just clicking. so kickstarted anyway, was taken off battery before so bike have lights withouth battery when started but not anymore. Anybody have any idea what it might be ? Thanks!
Ignition seems to be fine i cleaned contacts just to make sure, but as you can start and kill engine by it i guess its no problem with it, could it be rectifier? Im not very good at electrics but i try multimeter on the wire which going back to lights swithces etc and it seems to have 0 voltage?? Or shall i look for something else?
By the way fuse dont blow at all checked voltage after fuse seem no problem and there is no shorts. Tough rectifier cable connection seemed burned a bit and it seem to me that no power coming back after rectifier.
check all wire connectors up in the front end of bike leading to and from the regulator/rectifier. pop off connector check it and then reseat it. is the bike AC or DC feed ? . when you turn on ignition and switch lights on did the front headlamp come on or stay off until bike was started, if so thats an AC powered headlamp ( the tail lamp and indicators will be 100% dc ), it only starts to light up if the stator is producing power ie engine running. when you turned on ignition and put lights on both rear tail lamp and headlamp came on ? thats direct DC voltage straight from the battery. DC system = check fuses are all intact and check connections. ac system check the connetions from the regulator/rectifier , and connections to the regulator and rectifier unit ( the in to reg/rec connector - and the connetors comming out of the regulator rectifier. 9-10 times its a faulty loose wire/connector or a blown fuse , or a bad earth.
Hey so dc looks mine as it powered up all lights from battery before, tough could work withouth battery at all when engine is running. Fuses i tried 3 of them all brand new none of them bad ones. Rectifier the cable which come from battery is only one cable which have any voltage tough when started seems to me that one more cable get some power but not too much arround 4-7 volts cant remember right now for sure that second cable seem to go to stator receiver. The cable which going to all lights from rectifier seem to show no sign of life. Thanks for helping me out!
double check battery voltage it should be higher than 12v , you will usually find the battery voltage at around 13v -13.4v ( dont worry because this larger voltage from battery soon drops down when a load is added ie when lights are switched on) the stator will be sending power to the rectifier and regulator, from there its sent to the battery and tends to be around 14v -14.4v when you get up into the rpm ( bout 3000-5000rpm you find the max charge rate to the battery)
