That link didn't work for me. Any regulator can be tested. As I wrote before regulators only allow 14.5v max into the battery, so start up, rev up, and see what the regulator is putting into the battery. Honda TRX 200 used four wire regulators, I bet they work properly.

 

For me, start and idle were around 13.5-14.5. Mid throttle was around 14.5-15. And anything above that was 17.5 volts. The link showed a regulator for a 150 cc.

 

Pretty sure they use the same regulator between the 50 and the 150 and probably bigger

 

First image is the last one tao tao sent me. It is a bit bigger than the original in the second picture. I have 5 of the smaller ones now, and one of the larger ones shown above, and none have solved my problem

 

None of them look like regulators to me, they all look like rectifiers, third time of writing it, a regulator won't put more than 14.5v into the battery no matter what revs it is at. This one states that it does regulate, if that has any meaning to those selling Chinese electronics, also states max wattage 110w, so hope your stator isn't more powerful than that. https://www.ebay.co.uk/itm/12V-DC-4-....c100005.m1851

 

I am having the same issue with my sons
9 hours on machine gone through 3 batteries
place where purchased isn’t any help
what needs to be done to correct issue?
is ther specs on testing rectifier/regulator and stator ?
please help!!

 

If you have read the above, you will know that there are Rectifier/Regulators and Rectifiers. The Rectifier simply turns AC from the stator into DC, so if the stator puts out more than 15v the battery will be fed more than 15v and overcharge. Rectifier/Regulators also change the voltage from AC to DC but the regulator part also cuts the maximum charge down to about 14.5v. The problem seems to be in the translation from Chinese, many sellers don't realise the difference, and are selling Rectifiers but calling them Regulators. Tao Tao also seem to have got confused and have been fitting Rectifiers to bikes which require Regulators. Also from the above, you will know that it is very difficult to buy a Regulator as Chinese parts sellers have been sending Rectifiers badged as Regulators.

All you need to test is a voltmeter. Start engine, put voltmeter across battery and rev up. If voltmeter goes over 14.5v the Regulator is faulty, or someone has fitted a Rectifier by mistake.

 

Hey guys my quad is making 17 volts at idle if I turn the lights on it comes down to about 12.6 V. Can I run with the lights on and avoid having to fix the problem properly

 

Yes, back when cars were fitted with a similarly stupid set up (1930s), it was common practice to switch the lights on if doing long runs in daylight, to avoid boiling the battery. Check what voltage you are getting with the lights on above idle though, as if it goes over 15v you are still going to overcharge the battery.

 

Thanks Merryman will get her up to speed and test the voltage appreciate the help cheers mate