Quote:
Originally Posted by Snake
Since we are bringing coils into the conversation. What are everyone's thoughts on MSD multiple spark ignition modules for motorcycles? It is supposed to provide multiple sparks over a longer duration of time to ignite more of the fuel mixture.
|
Yes, spark duration can be longer in a MSD.
MSD works for engines that use an Inductive Discharge System.
The Ninja 250/300 uses Capacitive Discharge Ignition, which uses high voltage stored in a capacitor to induce the few hundred volt pulse into the secondary instead of generating it in the primary as with an inductive system.
One inherent limitation to a CDI system is that the spark duration can be short due (compared to MSD) to the use of small capacitors. In most instances using a higher voltage coil or better sparking plug, can make spark duration longer in a CDI system.
Spark duration is what does the actual work igniting a fuel mixture. Having a too weak or short spark can cause a fuel mixture not to burn well leaving behind too much unburned fuel. However, having close to complete combustion of a proper mixture can be a good thing.