Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
I've been reading along here and trying to get my head around the electrics. My coils are done and need to be replaced, so was considering a set of dyna coils - would these stronger coils impact the standard points system? Does more current then run through the points, thus making the Hondaman setup a good idea? Nothing like reading a few threads to feel ignorant again! ☺
Quote from: JustcallmeMrT on January 26, 2015, 10:03:27 PMI've been reading along here and trying to get my head around the electrics. My coils are done and need to be replaced, so was considering a set of dyna coils - would these stronger coils impact the standard points system? Does more current then run through the points, thus making the Hondaman setup a good idea? Nothing like reading a few threads to feel ignorant again! ☺
Is this the statement that Hondaman wrote
Quote from: Trigger on January 26, 2015, 10:30:19 PMIs this the statement that Hondaman wrote Can't be.The whole point about high performance coils is that they offer a lower impedence and hence generate a higher current when active. The voltage in the secondary (HT leads in this case) is a function of the rate of change of the current (not the level of current itself).When the points open, the current in the coils falls at a huge rate (1000's of Amps per second) and the large HT voltage is generated in the secondary.Cutting the current back down to standard won't give you a fatter spark unless the secondary has more copper turns.When the points are closed, the higher current flows through the coil. It doesn't generate anything at that stage - just burns power!Steve (BSc Eng University of Sussex 1976-79)I could do the differential calculus back then...
Quote from: SteveD CB500F on January 27, 2015, 09:40:46 AMQuote from: Trigger on January 26, 2015, 10:30:19 PMIs this the statement that Hondaman wrote Can't be.The whole point about high performance coils is that they offer a lower impedence and hence generate a higher current when active. The voltage in the secondary (HT leads in this case) is a function of the rate of change of the current (not the level of current itself).When the points open, the current in the coils falls at a huge rate (1000's of Amps per second) and the large HT voltage is generated in the secondary.Cutting the current back down to standard won't give you a fatter spark unless the secondary has more copper turns.When the points are closed, the higher current flows through the coil. It doesn't generate anything at that stage - just burns power!Steve (BSc Eng University of Sussex 1976-79)I could do the differential calculus back then...I copied it from his sohc shop page so i presume it is
I'm so, glad there is someone who struggling with understanding it too.I thought the answer is simply pay another 99 to DS for electronic ignition... how wrong I was.Still since I don't have 99 so I have to use original ignition, and it seems it is not a bad idea after all!