Technical - Idle stabilisation

" How does idle stabilisation work on the Tri-Spark Classic Twin Ignition?" a customer asked recently.

We know that it does work because we have a box of mail from customers including Michael from the USA stating that his 1972 Norton Combat went from being a little temperamental with the (other brand) of ignition to rock solid and a top performer with the Tri-Spark. He says:

"She started immediately and strobed one or two degrees off.The idle is a thing of beauty at this point.Confident is how I would describe the idle now.The progression through the rest of the rev. range is smooth, powerful and again, confident." - Mike Jetty

So how does it work? Without going into too much detail it works on the principle that the idle firms up with more advance and weakens with less. With digital control over the advance in the idle range from 500 to 1200 RPM we can get a result that continues to impress even the most discerning enthusiasts.