Hongdou CG125 Classic motorcycle: This is a copy of the Honda CG125. Runs well, but blows bulbs.?
Can anyone advise on what might be the cause of this most irritating problem??
Answers:
Normally you can attribute this to a bad regulato/ rectifier, or its ground wire, put a volt meter to the battery while its running, with a fully charged battery, you should have between 12.80 and 14.50 volts increase engine speed while testing to around 4,000 rpm if it climbs higher than 14.50, you probably have a regulator problem
Check for a inline fuse. If you have the wrong fuse in place it will blow the bulbs everytime. Sounds like you are getting too much current to the lights.
Faulty voltage regulator? Too high revs. outputting too high a voltage?
Regulator, Rectifier, diode board maybe, you could also check for a faulty earth that could be arcing that would not help .
Could be cheap bulbs, try good quality ones. It could also be vibration or as others have said the regulator/rectifier.
its a generator problem or regulator rectifier problem.
6 volt system right? could be vibration or electrical, which bulbs, tail lamp? using LEDs with the appropriate resisitors could be a cure for everything except the headlamp but a pocket full of bulbs, could be the best bet. Do not fit 12volt bulbs to a 6 volt system as the filaments are thinner and weaker and much less capable of resisting vibration.
If there is an electrical fault I would expect the battery to boil and need lots of topping up., bigger battery is a good idea as is a zener diode but I have no idea where you would find a 6 (7.2?) volt diode.
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