Headlight and tail light don't turn off By go4it (Read 8,709 times)

[go4it]

It's been quite a while since I used my bike (2009 Riketa 250 54B). But I finally got around to fixing it's problem (new carb) and was able to ride it on several short trips totally about 60 miles. Last night I turned off the engine in the garage and noticed the headlights were still on. I turned ignition switch on/off several times but the headlights and tail lights stay on. The only way I could turn Them off was to disconnect the battery. I checked all the other electrical components and they work normally. Nothing else is effected but the front and rear lights. No radio, no dash light and the started will not activate with the ignition switch in the off position. However, with the ignition switch in the off position the light stay on and the high/low beam switch also works. As I said this is a new problem that started yesterday.

I am assuming they is a relay somewhere that is stuck. However, I would also think that the ignition switch would cut all power to everything except the alarm and clock. Before I have the enjoyment of removing all the plastic in search of a shorted wire, bad ignition switch or bad relay does anyone have an electrical drawing? Or had this problem and can point me in the right direction?

Bob

[Cruiser]

Your scoot uses a blocking diode (also known as a relay) to supply power to the lights when the scoot is running. When the engine is shut off, the stator no longer supplies power and the blocking diode is supposed to block power from the battery to the lights. If this diode is shorted, the lights will stay on when the ignition is shut off. It is the little heat sink thing in the upper left hand corner of this picture:



A short circuit could have also developed between the two wires that lead to the blocking diode, but that is the second most likely cause of the always on lights. Pull the connector at the blocking diode and if the lights go out then the diode is no good.

Here's a link for a replacement:

www.curtisparts.com/Moped_Web/GY6_Relay.htm

[go4it]

Great information. Can you give me a hint where they might have located this on the bike? I pulled off the windshild and cowlinging this morning and didn't see anything like what your indicating. I was playing ith my carb yesterday and may have disturbed (yanked) on a wire while working. So I wonder if I caused the problem. Bob

[Cruiser]

It should be located right above the muffler under the fender.

[go4it]

Yeah, I finally got back to looking for it this morning. I found it right where you told me it would be too. Great call!! I unpluged it and the lights went out. Of course I would expect them to though. At this point I would say it's still a guessing game as to weather it's the relay or in the ignition switch. But I'm putting my money on this relay.

I looked at the one you linked to but the wire connector is different. I guess I could change the plug if I had to. But I think I'll try to fine one with the correct connector. It's got 2 rows with 2 spades per row. But only one row is active. I tried to upload a pic but I have no idea how to do it here. Thanks again, Bob


i396.photobucket.com/albums/pp49/go4it2/P7260221R.jpg

[Cruiser]

Here's the tutorial on picture posting:

scooterdoc.proboards.com/index.cgi?board=talk&action=display&thread=4312

[go4it]

Hmm, I tried that and it didn't work. But it does now. You must have done something.........LOL

[go4it]

Maybe I found the wrong part. Here's a link to the exact part I took off the bike. But they call it the regulator. Do you think this is the relay I'm looking for? The lights did go out when I unpluged it. Bob


www.partsforscooters.com/164-61_GY6_4_pin_Regulator?sc=2&category=17

[Cruiser]

The part in the link that you have is for a regulator/rectifier for a 50-150cc scoot. This part is not used on a 250cc scoot. The regulator/rectifier on the 250cc is the large black heat sink thing in the picture I posted above. How about a picture of the relay that is on your scoot?

[go4it]

I'm not having any luck finding this part (assuming I'm looking for the right part). So why can't I install a manual on/off switch inline to the relay? Do you think it can hurt anything?

BTW, I did a continuity test on it and it has continuity across the terminals which to me indicates a closed relay.

[go4it]

OK, the regulator is the only thing I can find back there or anywhere for that matter. Here's an actual pic of the part. As Ia said if I unplug it the lights go off. I can leave it unpluged and the scooter will start and the main headlights will work. But when I plug it in again the light get brighter.

IS it possible it is use for a dual pupose?

[go4it]

Here's a pic of everything on the back of the bike. I have look everywhere for anything that could be a relay. Nothing!

[Cruiser]

Jul 26, 2011 12:25:25 GMT -6 go4it said:

I'm not having any luck finding this part (assuming I'm looking for the right part). So why can't I install a manual on/off switch inline to the relay? Do you think it can hurt anything?

BTW, I did a continuity test on it and it has continuity across the terminals which to me indicates a closed relay.

A manual switch could accomplish what the relay or blocking diode does. You would have to remember to turn on while running and off when not running in order to keep from killing the battery.

When doing a continuity check across the relay, it will measure open in one direction and low continuity when the meter leads are reversed. If continuity exists in both directions, then the relay is no good.

[Cruiser]

Jul 26, 2011 12:56:29 GMT -6 go4it said:

OK, the regulator is the only thing I can find back there or anywhere for that matter. Here's an actual pic of the part. As Ia said if I unplug it the lights go off. I can leave it unpluged and the scooter will start and the main headlights will work. But when I plug it in again the light get brighter.

IS it possible it is use for a dual pupose?

Those are the symptoms of a shorted relay. The part used in your scoot looks like a regulator/rectifier.



This picture shows a regulator/rectifier from my 50cc scoot on the left and the blocking diode (relay) from my 250cc scoot on the right. The RR has 4 pins while the diode has 2.

Has anyone heard of using 2 regulator/rectifiers at the same time in any scoot?

[go4it]

I spoke to the place where I located the regulator and they refered to it as a regulator/rectifier but they had no tech department and the girl had no idea what it was used for...onlt the name. And of course I was only going by thier pic that matched what I had in my hand. They told me they were of course out of stock for 3 weeks. And it does read continuity in both directions. As you know if your elect circuitry is working oonce the motor is started it will continue to run without the motor. But it can't/won't do this without the battery if this regulator/rectifier in unpluged.

Yeah, I agree I will need to remember to turn off the switch with the motor. Kind of like the old days. I am relocating the regulator/rectifier to under the seat where my CDI is already located. I was thinking about also moving my starter solenoid there because it has a fuse on it and it would be easier to get to that way. But that fuse doesn't normally blow. But I have blow while connecting the battery (OPPs. reversed wiring).