 EIS Overview & PrimerBefore discussing the detailed mechanics of how the EIS works, we should overview the benefits and general operation of the EIS. The EIS differs from standard magneto systems in one very significant way: TIMING. In a magneto, timing is permanently se... Read more |
How Direct Fire Ignition WorksA "Direct Fire" ignition fires the spark plugs directly from the coils and not through a distributor cap and rotor. This is accomplished by using multiple coils, each with two spark terminals. The coil terminals are connected to the spark ... Read more |
High Resolution Single-Crankshaft-Sensor DecodingThe EIS uses a single, high resolution, 60-minus-2 tooth crank trigger wheel. This affords resolution unheard of in any other electronic ignition available today, offering spark accuracy of ¼ degree of crankshaft rotation. This accuracy means the system is ideal ... Read more |
Spark Plug Wire SelectionThe EIS outputs an extremely high-energy charge from the ignition coils. Spiral core wires work best with this charging method, since they prevent the electrical noise generated by the coil firing events from being transmitted. We recommend an 8mm or ... Read more |
Spark Plug SelectionAs was previously stated, spark plugs are generally more important to spark quality than spark plug wires. Most spark plugs exhibit failure when exposed to a large load. Failure usually consists of either intermittent sparking or arc-over. Arc-over is when ... Read more |
Low Voltage Operation with Permanent Magnet-Type StartersThere has been much discussion regarding the newer style, lightweight starters that use permanent magnets as the basis of their technology. To understand some of the issues, we must first understand one basic design characteristic of a permanent magnet lightweight ... Read more |