jOe wrote:Moving on to that big capacitor off the regulator , which I recall is 450 picofarads/24V, if the relay is manually triggered, and however much is stored in it was put back into the system, would that be enough to flash the fields?
But if there's no output from the generator it wouldn't recharge anyway.
posted some photos over on XLforum showing the mounting location.Magneto Sportster wrote:
hennesse wrote:We instill the instruction in the pole shoes of a "new" generator by polarizing the generator. On a battery equipped bike, this is accomplished by momentarily (like 1 second) connecting a wire between the "BAT" and the "ARM" terminals of the regulator. On a magneto-equipped XLCH, you have to supply an external battery, but it need not be any bigger than the battery in an XLH. Connect the negative terminal of the external battery to ground, and touch the positive terminal of the battery to the regulator's ARM terminal for 1 second.
sportsterpaul wrote:Nope, I spent 35 years in Silicon Valley-- the little u with a tail (µ) is the Greek mu, and stands for micro, that is, one-millionth. The small m is milli, one-thousandths, like mA. The capital M in mega, as in a million. Computer jocks like Dave get to use either the micro,
The first reliable battery operated ignition was developed by the Dayton Engineering Laboratories Co. (Delco) and introduced in the 1910 Cadillac. This ignition was developed by Charles Kettering and was a wonder in its day. It consisted of a single coil, points (the switch), a capacitor and a distributor set up to allocate the spark from the ignition coil timed to the correct cylinder.
The points allow the coil magnetic field to build. When the points open by a cam arrangement, the magnetic field collapses inducing an EMF in the primary that is much larger than the battery voltage and the transformer action produces a large output voltage (20 kV or greater) from the secondary.
The capacitor has two functions. Its main function is to form a parallel resonant circuit with the ignition coil.[2][3] During resonance, energy is repeatedly transferred to the secondary side until the energy is exhausted.[4] As a result of this resonance the duration of the spark is sustained and so implements a good flame front in the air/fuel mixture. The capacitor's second function and consequent on the first, is to minimise arcing at the contacts at the point of opening by providing an alternative destination for the coil's discharge current. This reduces contact burning and maximizes point life. The Kettering system became the primary ignition system for many years in the automotive industry due to its lower cost, and relative simplicity.
Return to General K / Sportster Discussions
Users browsing this forum: No registered users and 20 guests