Regulator Bad? By damin69 (Read 1,478 times)

[damin69]

Ok we followed the flow chart for checking Stator and Regulator. Ok So Not getting over 13.5V+ on the battery. Then from Battery Plus to red Wire on Regulator is over .2V but can not track down any bad connections. Could my Regulator be bad? I checked between all 3 Stator wires and it is at ~60VAC between Each wire so that says that the stator is good. Just not sure where to go from there since I am not finding a bad connection. So I figured I would ask if maybe the Regulator it self may be bad and causeing this.

[damin69]

Actually with a full charge running at Idle I had like 12.5 Volts at about 5000 rpm It made it up to about 13.25 never made it to the required 13.5+.

[yoster]

Mine doesn't get to 13.5 either; acts just like yours, but it keeps the battery charged so I'm living with it. If you ever go to the SD forum you can find my long thread about it.

Let me tell you something I've learned about these Chinese regulator rectifiers.. they all act differently. My current one acts like yours. My 2nd one died in a week, but would go to 14.5v until then. My third one went to 17v but would overheat and die after 10 minutes until it cooled. My fourth one acts like my second one, but is smaller and doesn't have the same amp output, but I keep it as a spare. It's actually the exact one that JR posted in the first eBay link. Notice that it's smaller than the others. Cruiser66 uses that one, but only runs with one headlight on for that reason.

My current on also has random days where it decides to charge at 16v.. don't ask me why.. well I know why.. they're cheaply made lol.

[damin69]

Are there any Replacments that are not Chinese made? I know the one guy that did my tires was talking about Regulators made in Tiwan being much better quality but how do you find out what will work with the Chinese scooters?

[yoster]

You can buy the exact Honda version of it, but they go for over $100. I'd honestly just try one off eBay; don't pay more then $35ish, and get a 'large version.' Like in the link below or the second two links that JR posted. I haven't read your other threads, but is your battery actually dying, or are you just concerned?

cgi.ebay.com/ebaymotors/Voltage-Regulator-Rectifier-CF250-250cc-Go-Kart-Scooter-_W0QQcmdZViewItemQQhashZitem2307441ab4QQitemZ150445759156QQptZMotorcyclesQ5fPartsQ5fAccessories

Note: The 'small version' of the rectifier is fine also, I'm just not using it because the voltage drops a wee bit more vs the 'large one' when the fan kicks on, and I like taking all the power I can get. I have the same exact scooter as you; same name, model, engine, even color, so they're going to act similar.

[damin69]

I had put in the High WATT headlights and If I run both of them it will kill my battery enough that it will not start the scooter after abount an hour of running.. I have one dissconnected right now. I do not have the extra cash right now to do the HID upgrade yet. Running with one headlight I have gotten by fine without and issues.

[damin69]

WELL after finally getting diff regulator. Same thing Never getting over 13 volt actually would drop below 13 volts at 5000 rpm. Stripped it all the way to the frame went over every connection still All connections good no broken wires. Then I remember on Somebody's thread about cutting out at 45+ that JR had mentioned the Diode. So I am thinking what the heck might as well check it out. So did what JR said about how to check it unhook the diode start scooter 13 volts constant weather at idol or 5000 rpm again actually drops below 13 at 5000 so then I put a jumper across where I took out the Diode and Walla what do you know the voltage JUMPED up to about 14.2 volts. :-) That is all I needed to see. I am now going to go order a dang Diode I think that has been my charging problem all along.

I am sure glad I try and read all the post even if it is not something that is always a problem I am having as it sometimes can lead into the problem you are having. Did that make sense. Not sure it did to me.... LOL

Anyway the strip to the frame was not just to check the wiring I installed the HIDs today and LEDs. Which is going to be a whole other thread when I am done took pictures along the way. And Had a small issue with LED for front turn signals. I will put that in the new thread also.

[yoster]

See Damin, should have read my long thread on SD
My charging issue was solved the same way.. I replaced the diode with a relay. The relay is triggered off one of the fuses that's only activated when the ignition is on.. can't remember the one exactly. Might be turn signals. It was easy to splice into (pulled the fuse box out from under the seat and tapped into the wire leaving the fuse (so the fuse would still protect it). Now when I turn on the ignition, the relay kicks on (which turns on my headlights now if I don't start the scooter), then I start the scoot. So far so good. My regulator is still weak, but it gave it enough juice to make it drivable and at least maintain the battery.