Clinician
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Post by ipapilot on Apr 16, 2015 16:51:51 GMT -6
I have a very non technical answer, but it is Very close:) Much closer and more consistent certainly than me just moving the coil back and forth across the magnet.
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Clinician
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Post by ipapilot on Apr 16, 2015 16:22:11 GMT -6
I verified the old coil and new coil are the same. Neither used the red/black wire to power the cdi; just the blue for the pickup. Just for the heck of it, I changed the pickup wire to the old one to see if it made any difference and there is still no voltage on the blue wire when cranking. My understanding is there should be at least .4Vac to signal the cdi to fire. I also spoke with the vendor that supplied the stator and pickup and they are sending another one in case mine is bad.
When the pickup and flywheel are not installed, with a probe grounded to the flywheel, you can get a reading from the signal wire if you just move the pickup back and forth across the magnet. It seems that once it is installed it won't do the same... I'm lost...
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Clinician
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Post by ipapilot on Apr 15, 2015 20:35:52 GMT -6
I'm pretty sure mine has the wrapped pole, but it is not used. The red/black wire is not attached to anything and I verified that with the manufacturer. Regardless, the blue pickup lead should still see something when cranking.. Even in an AC system it provides the signal to the CDI. So why in the world is there still no signal  |
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Post by ipapilot on Apr 15, 2015 20:14:57 GMT -6
If I didn't mention it earlier, even my wiring harness is new from the manufacturer..
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Post by ipapilot on Apr 15, 2015 20:06:22 GMT -6
I'm familiar with the AC cdi's thanks to all the research on this issue. If you reference my wiring diagram above, I think you'll see it matches up with the picture I posted of my CDI and it's wiring connector. The two pin connnector only has one wire that receives the 12V from the ignition, so the only thing that should come from the stator is the input signal blue/white wire. I'm honestly not sure what the green and white wires do, though they are hooked up.
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Post by ipapilot on Apr 15, 2015 20:00:41 GMT -6
Very interesting... It was not running when I got it, but that original stator had dirt in the flywheel so it was obviously running at some point. Looks like I need to pull the new one to verify what I have.. This is the part I purchased:(http://www.partsforscooters.com/164-289-Stator) How does the DC stator differ in appearance? I'll tear it apart tomorrow. Even if someone had converted it to AC at some point, I have replaced absolutely everything in the system back to the original DC power. Of course, if I was shipped the wrong stator that explains the issue. This 'should' be a picture of the new one I installed:  |
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Post by ipapilot on Apr 15, 2015 19:04:10 GMT -6
This is the stator, flywheel and pickup that were removed. They are identical to the replacement. I assumed the pickup was bad based on the lack of signal on the blue/white wire.  The single black wire is the power wire on this dc cdi.. It reads 12.85 volts with key in "on" position.  This is the harness from cdi to pickup/stator. The blue/white is the signal. The black/red is not used.  And a wiring diagram just for reference...  |
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Post by ipapilot on Apr 15, 2015 16:29:17 GMT -6
The flywheel, stator, and pickup coil are all new and giving the same reading as the original I replaced. I replaced them for the same reason Alleyoop came up with. Guitarman, you mentioned a magnet in the engine.. The magnet is on the flywheel and the pickup coil should be getting a voltage reading when cranking. As I said, the black/red wire is but it is not used on the dc cdi. The blue signal wire is the one that I need to show something and it is not. Based on specs I have read elsewhere, the 139 ohms is pretty normal.
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Post by ipapilot on Apr 15, 2015 16:00:43 GMT -6
Hello All,
As some others have obviously figured out, you guys appear to be the place to go for GY6 help.. I purchased a non-running buggy for my son with hopes of it being a fairly easy project for us and it has turned into more of a pain than anything else.
The carbide 150 has a dc system and that has provided its share of challenges as there is little troubleshooting data out there. I have quite literally replaced every piece of the electrical system and still have not gotten a spark. I have power to the CDI (I have 3 of them to work with). I have power to a functional starter. I do not appear to be getting voltage to the coil while cranking. In fact, despite it being new, I don't appear to have any voltage reading from the stator signal wire while cranking. The red/black shows signs of life with voltage (not connected to anything), but not the signal wire. It does show about 139 ohms whether cranking or not. The wiring harness and battery are grounded to the motor and the motor is grounded to the frame. It has a complete new wiring harness and 2 new cutoff switches from the manufacturer as well.
I'm happy to provide any other numbers I can to get this solved.. Thank you to anyone who can help provide some insight on this monster!
Brian
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