NEWS FLASH - December 2013
We are now selling magneto bearings, insulators, oil seals and armature shims from our on-line shop.

Brightspark Magnetos

NEW ... Take a look at some of the equipment we use in our workshop for magneto servicing and overhauls.

 

 

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FAQ sections:

FAQs about the EasyCap
FAQs about magneto condensers
FAQs about magnetism and remagnetising
FAQs about ATDs and timing
FAQs specific to Lucas magnetos
FAQs about magnetos generally

In this section:

Do I really need to disconnect the old condenser?
Is the EasyCap covered by a guarantee?
How can a capacitor so small do its job properly?
What is the capacitance of the EasyCap?
What is the voltage rating of the EasyCap?
What is the dV/dt rating of the EasyCap?
Over what temperature range can the EasyCap be used?
Is the EasyCap susceptible to high humidity and dampness?
What quality control is the EasyCap subjected to?
How long will an EasyCap last?
How can I check my EasyCap?
Can I make my own version of the EasyCap?

FAQs

How long will a Brightspark EasyCap last?

The capacitors used in the Brightspark EasyCaps are specified by the manufacturer as having characteristics which remain perfectly acceptable after being operated for 1000 hours continuously at 120% of their rated voltage and at their maximum operating temperature (i.e. 1000 hours at 760 V and 125 °C).

Brightspark EasyCaps have been tested for many thousands of miles on the Brightspark Mule (a BSA A10) and on other bikes. A Lucas K2F magneto fitted with an EasyCap has also undergone endurance testing on the Brightspark rig, having clocked up many hundreds of hours running at various speeds up to an equivalent of 6,400 rpm at the crankshaft and at various temperatures, spark gaps and spark chamber pressures. It has to be said that we have abused that magneto, and blown a bobbin and a slip ring in the process. However, in all of those tests, we haven't been able to break or blow an EasyCap.

A capacitor cannot, however, be expected to last forever when on magneto duty. But the beauty of the EasyCap concept is that the condenser can be replaced in a couple of minutes, at the roadside if necessary, without requiring complete disassembly of the magneto, reassembly, and re-timing of the ignition. Furthermore, since the EasyCap is so accessible and is relatively inexpensive, we recommend either checking (if you have a capacitance meter and Megger) or replacement as a regular service procedure so as to keep your magneto in tip-top condition.

 

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