| Electronics > Projects, Designs, and Technical Stuff |
| Power Pack repair attempt but cant discover parts |
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| Florek:
--- Quote from: orbanp on August 26, 2018, 04:10:45 pm --- --- Quote from: Florek on August 26, 2018, 03:07:25 pm ---... About cheap cdi for scooter problem is that most of them are for 1cyl and in mine you have 3 wires from trigger coil since cdi give spark for specific cylinder --- End quote --- Two of them would work fine. The supply wired in parallel, and the trigger coils wired individually. I would imagine that the trigger coil in your outboard has common ground and individual "inputs for the cylinders". That makes it three wires. You could verify that with a DMM. Regards, Peter --- End quote --- yes but output wire must go to 2 coil, in one wire, so both spark will fire, and idk if capacitor have enough energy to supply enough power to give strong spark in both coils |
| orbanp:
This is how it could work. The kill switch you need to figure it out, based on the modules you would get and on the outboard wiring. Peter |
| Florek:
but you have only one 360 rotation of flywheel to charge 2 capacitor, on two separate cdi, idk if feed coil charge two cap in two cdi on the same time that it will have enough power to give strong spark. |
| orbanp:
--- Quote from: Florek on August 26, 2018, 04:49:30 pm ---but you have only one 360 rotation of flywheel to charge 2 capacitor, on two separate cdi, idk if feed coil charge two cap in two cdi on the same time that it will have enough power to give strong spark. --- End quote --- That is a legitimate concern! But if you think in terms of energy, the feed coil still would have provide the energy for the same amount of spark! I do not think that a newer CDI unit would be that much more inefficient! Still, if push would come to shove, you could rewind the feed coil with a bit thicker wire. Here is a link to a CDI trouble shooting guide, in the appendix there is data on coils and voltages: http://www.cdielectronics.com/wp-content/uploads/2013/02/CDI%20Troubleshooting%20Guide%20-%202012.pdf Also enclose a drawing on a "DVA", which is a peak voltage measuring attachment to a DMM. The diode could be an 1N4007 or similar. Also enclose a document about scooter CDI ignitions, got it from somewhere on the net. Hope it helps, Peter |
| Florek:
i have made dva some time ago , right now i discover like one of scr are damage i think , i ordered new one and replace and see if it work, if still weak spark then i think build my self new one. |
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