Maybe an odd question: has anyone ever measured the current drawn by the ignition coils?
Frank
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| Current drawn by the ignition coils http://ducatipaso.org/forum/viewtopic.php?f=1&t=7963 |
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| Author: | Frank.61 [ Sun Sep 02, 2018 7:24 pm ] |
| Post subject: | Current drawn by the ignition coils |
Maybe an odd question: has anyone ever measured the current drawn by the ignition coils? Frank . |
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| Author: | Mc tool [ Sun Sep 02, 2018 11:20 pm ] |
| Post subject: | Re: Current drawn by the ignition coils |
I have not measured the actual current draw but the stock coils have bugger all resistance ( 0.34 ohm) so I would say its fairly high , but then the dwell time ( the time the current actually flows because the coils are switched on and off so the current flow is not continual ) must be reasonably short. You could put an amp meter in series with the coil but I doubt that it would tell you anything useful as the coil powers on and off 100 times per second at 6000rpm and the meter wont display that fast . You could hook a coil up to a battery with the amp meter in series and that would tell you the continual current flow but again not all that useful. To get a accurate idea of whats really going on would require an oscilloscope and the nouse to figure out what its telling you...... any how ,if your thinking about fitting new coils , Dyna do a suitable replacement but you would have to do a search here as others have done this but I cant remember what coils they used. Hamish |
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| Author: | Frank.61 [ Mon Sep 03, 2018 1:42 am ] |
| Post subject: | Re: Current drawn by the ignition coils |
Yeah, I was also afraid that you would need an oscilloscope for it. I was curious which wire diameter I could take the best. A specialist told me to keep 5A per square millimeter (17awg) as a maximum for motorcycle wire loom. I have 3ohm Dynatek coils but have no idea what they actually draw during the 360 degrees cycles. Just curious ... Frank |
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| Author: | Derek [ Mon Sep 03, 2018 8:35 am ] |
| Post subject: | Re: Current drawn by the ignition coils |
For fuse purposes you need to look at the continuous current being drawn at switch on when the engine isn't running. A 3Ω coil will draw approx 4 amps, so 2 coils will pull 8A. When the engine is running, as stated above, the current draw will be much less. |
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| Author: | Mark [ Mon Sep 10, 2018 8:58 pm ] |
| Post subject: | Re: Current drawn by the ignition coils |
California Cycleworks designed a coil replacement kit that should work and fit for 750 Pasos with the Kokusan ignition system: http://ca-cycleworks.com/ca-cycleworks- ... ls/2vcoils About a decade ago I installed green 3ohm dynacoils, had a bracket fabricated and used Magnecor ignition leads - the bike ran significantly better thereafter. Cheers, Mark |
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