S&s Cycle Hi-4n Ignition Module Coil & Spark Plug Wire Kit
Kit includes S&S HI-4N ignition module, S&S single fire coil and black 8.5mm double silicone ferro-spiral core spark plug wires. Offers switchable multi/single spark, race/street mode, RPM limiter and a kick/electric start mode, no PC required.
This HI-4N module used to be made by Crane, now by S&S. Nothing changed but the name. Same great technique, same dependable electronics. The HI-4N offers more options than the famous HI-4, with even better reliability.
The HI-4N comes with switchable single/dual fire (with built-in, multi/single spark, race/street mode, RPM limiter and a kick/electric start mode). Easy initial static set-up with built-in LED timing light.
Note: The difference between single dual fire explained: - Dual fire - This is the way the earlier, pre-Twin Cam, engines work. A single coil is used and both spark plugs fire simultaneously. This is the simplest system. The'wasted' spark is sometimes said to be horsepower robbing.
Single Fire - This is the way the stock 00-up Twin Cam engines work. Two separate coils will fire the spark plugs independently and only the spark plug of the cylinder that is on compression stroke will be fired.
It is said that these engines vibrate less and can improve power. The effects will become more pronounced with hotter cams and higher RPM. Fuel injection; 71-99 XL (NU). Image can vary slightly from actual finalised product. We will accept your request at our earliest opportunity.
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