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Post by jacoblong09 on Mar 16, 2020 20:26:39 GMT -5
I replaced all my bulbs 2 nights ago, 90 dollars of both LEDs and halogens. Over half of those dollars have been quite literally set aflame. The halogen dash bulbs, halogen headlight, and led bulb to the right of the headlight have all blown since then. The turn signals and brake light are fine, those are all led bulbs, so I know I need a resistor to mimic the load of a set of halogen bulbs, to balance the power out.
I know this is a problem. And I know the scooter has a set of resistors, one that is a 12volt 35 watt, and one that is a 12volt 3 watt one. Both of them have only one wire coming from them. They have bullet connectors and the only place I see to connect them is a single black and green colored wire in about the same location. I just need to understand how exactly this works. So I'm guessing since the resistors resemble the same load as their respective bulbs, so I figure they need to be screwed in to a grounded portion of the frame in order to only have one wire. So the green and black wire has power from the lighting coil, so all I should need to do is connect a resistor to it, and the scooter would just run thinking theres another bulb connected? And likewise, if I spliced both resistors into that wire, would it make the scooter think theres a 35watt headlight and a 3watt dash light connected? I feel like I'm overthinking this I just dont wanna spend another half a paycheck on more bulbs just to have them blow up again.
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Post by jacoblong09 on Mar 16, 2020 21:07:40 GMT -5
Alright I've definitely been overthinking this. I'm probably not going to use the resistors that came with the scooter. I am going to be purchasing one resistor for each led bulb to make up the current difference from the originals. When I wire them in, can i just connect them all in one place, or do I need them right next to each bulb for it to work properly?
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Post by jackrides on Mar 16, 2020 21:38:13 GMT -5
Can you get ahold of a wiring diagram? Sometimes headlights use a combo of AC and DC.
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Post by jacoblong09 on Mar 16, 2020 21:43:10 GMT -5
I had a diagram from the service manual... the bulbs were all working properly until the scooter was revved up. They got bright then poof See if you can decipher it: www.49ccscoot.com/pics/Wiring Diagrams/Phantom r4i electricity diagram.jpg
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Post by FrankenMech on Mar 18, 2020 10:01:01 GMT -5
Your voltage was going high when you revved the motor, you may have a blown regulator. You can put the resistors all in the same place. You can also place the resistor on the stator output line. I am not real familiar with the resistor equipped charging systems but if I remember right the resistor was used to dump energy when the headlights were turned off.
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Post by jackrides on Mar 18, 2020 10:31:22 GMT -5
Clicking your 3/16 49ccscoot reference gives a 404 page not found. I can follow the wiring diagram in the scoot Directory quite well. Which one?
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Post by jacoblong09 on Mar 19, 2020 11:52:14 GMT -5
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Post by FrankenMech on Mar 19, 2020 11:57:52 GMT -5
hmmmmm. I didn't see any resistors with a quick look.
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Post by jacoblong09 on Mar 19, 2020 12:11:43 GMT -5
So yesterday I soldered both of the resistors to a green and black colored wire located nearby. The wire was for the lighting i think because when i used a test light it only lit with the scooter running and got brighter when i revved it. I removed the resistors and sanded down the ground point then made sure once I mounted it back on that it had continuity. I dont have a headlight till mail comes in today but all the other bulbs were replaced yesterday. They all seem to always have a pretty steady constant brightness now. I think the regulator is fine because the brightness is steady when I rev it and then after I rev it (when it idles down) sometimes they dim for less than a second before going back to the normal brightness, so I guess the regulator is dumping extra power as it should. I left the headlight harness disconnected till I get the headlight bulb in tonight. It seems I'm finally making some progress. I tested the charging system too. Set my meter too 200 vdc, goes from 12.4 with the engine off to 15-16 at idle, then up to 20-30 with the front brake held down revving it. So that's good.
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Post by jacoblong09 on Mar 19, 2020 12:35:12 GMT -5
Also this is a yamati eurostrada, it has a 4stroke 49cc engine in it, it's just like a relabeled triton r4 with some things changed here and there.
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Post by FrankenMech on Mar 19, 2020 16:20:04 GMT -5
I tested the charging system too. Set my meter too 200 vdc, goes from 12.4 with the engine off to 15-16 at idle, then up to 20-30 with the front brake held down revving it. So that's good. That is not good, the voltage should never go above about 15V. Normal battery voltage is about 12V, 14V at full charge. Your regulator is bad. The headlight should negate the need for resistors on your scoot. You can leave the resistor in place just put a switch on it to use in case your headlight goes out.
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Post by 2stroked on Mar 19, 2020 17:30:55 GMT -5
Yeah, Frankenmech is right. That's way, way too high.
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Post by christopher on Mar 19, 2020 17:52:02 GMT -5
What are the load resistors for? Replace the turn signal flasher with a solid state version and it should flash normally load resistors are a waste.
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Post by jacoblong09 on Mar 19, 2020 20:47:08 GMT -5
I tested the charging system too. Set my meter too 200 vdc, goes from 12.4 with the engine off to 15-16 at idle, then up to 20-30 with the front brake held down revving it. So that's good. That is not good, the voltage should never go above about 15V. Normal battery voltage is about 12V, 14V at full charge. Your regulator is bad. The headlight should negate the need for resistors on your scoot. You can leave the resistor in place just put a switch on it to use in case your headlight goes out. I've replaced all 4 ten watt turn signals with leds anyway, so the 35w and 5w resistor are really there for my peace of mind now. I got the headlight bulb in after work and am having no issues at all. I didnt even think the battery thing was an issue, I've had absolutely no issues with the battery parts of the bike, and the lights are working perfect at the moment. I think I might have to redo those measurements tomorrow. All along this scooter journey the battery has really never given me any problems. Could it be because I'm using a larger battery than what the scooter came with? I'm keeping it under the seat cause I havent gotten around to buying the correct one. I think it's from a Yamaha maxim 800 something. I'll just buy a new regulator either way. Tomorrows payday hooray! Edit: I thinks the battery wouldnt be the problem actually, the voltage is 12v and I think the only difference is the amp hours but it might literally just be a 12v 4ah battery like the yuasa it came with
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Post by jacoblong09 on Mar 19, 2020 21:10:25 GMT -5
Should revving the scooter change the brightness of any of the bulbs?
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